作者机构：
[Ketel, T.; Mulder, M.; Tuning, N.; Perez, D. H. Campora; Mauri, A.; Usachov, A.; de Vries, J. A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Sanchez Gras, C.; Veronesi, M.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; De Bruyn, K.; van Beuzekom, M.; Biolchini, A.; Martinez, M. Lucio; Jans, E.; Vos, K.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Grecu, A. T.; Merk, M.; Onderwater, C. J. G.; Bolognani, C. S.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Pawley, C. J.; Soares, M. Senghi; Klaver, S.; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands.;[Massafferri, A.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; de Souza Leite, J. Baptista; Torres, M. Cruz; Machado, D. Torres; Gomes, A.; Carneiro Da Graca, U. De Freitas; dos Reis, A. C.; Santovetti, E.] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.;[De Paula, B. Souza; Lopes, J. H.; Polycarpo, E.; Souza De Almeida, F. L.; Gandelman, M.; Gobel, C.; Rangel, M. S.; Hicheur, A.; Otalora Goicochea, J. M.; Garcia, L. Meyer; Rodrigues, F. Ferreira; De Paula, L.; Nasteva, I.; Amato, S.] Univ Fed Rio De Janeiro UFRJ, Rio De Janeiro, Brazil.;[Cai, H.; Bian, L.; Liu, G.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Huang, X.; Li, H.; Li, A.; Hu, X.; Grauges, E.; Tan, Y.; Gu, C.; Gong, G.; Wang, X.; Bursche, A.; Kang, Y.; Fang, B.; Qi, H. R.; Chen, C.; Zhu, X.; Sun, L.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.; Gan, Y.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Ma, L.; Sheng, S.; Chen, S.; Greeven, L. M.; Li, P. -R.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
摘要：
A combined amplitude analysis is performed for the decays B0-+ D0D thorn s & pi;- and B thorn -+ D-D thorn s & pi; thorn , which are related by isospin symmetry. The analysis is based on data collected by the LHCb detector in proton -proton collisions at center-of-mass energies of 7, 8, and 13 TeV. The full data sample corresponds to an integrated luminosity of 9 fb-1. Two new resonant states with masses of 2.908 ⠂ 0.011 ⠂ 0.020 GeV and widths of 0.136 ⠂ 0.023 ⠂ 0.013 GeV are observed, which decay to D thorn s & pi; thorn and D thorn s & pi;- respectively. The former state indicates the first observation of a doubly charged open-charm tetraquark state with minimal quark content 1/2cs over bar ud over bar ⠃, and the latter state is a neutral tetraquark composed of 1/2cs over bar u over bar d ⠃ quarks. Both states are found to have spin-parity of 0 thorn , and their resonant parameters are consistent with each other, which suggests that they belong to an isospin triplet.
作者机构：
[Li, D; Tsai, Chaowei; Zhang, Yongkun; Zheng, Zheng; Cui, Xianghan; Li, Di; Zhu, Yuhao; Wang, Pei] Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China.;[Li, D; Zhang, Yongkun; Cui, Xianghan; Meng, Fanyi; Li, Di; Zhu, Yuhao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;[Niu, CH; Niu, Chenhui] Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.;[Li, D; Li, Di] Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa.;[Feng, Yi] Zhejiang Lab, Res Ctr Intelligent Comp Platforms, Hangzhou 311100, Peoples R China.
通讯机构：
[Li, D ; Niu, CH ] C;Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.;Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa.
关键词：
Fast Radio Bursts;star formation rate;multi-structural;repeaters
摘要：
Fast Radio Bursts (FRBs) are millisecond-duration transient events that are typically observed at radio wavelengths and cosmological distances but their origin remains unclear. Furthermore, most FRB origin models are related to the processes at stellar scales, involving neutron stars, blackholes, supernovae, etc. In this paper, our purpose is to determine whether multi-structural one-off FRBs and repeaters share similarities. To achieve this, we focus on analyzing the relationship between the FRB event rate and the star formation rate, complemented by statistical testing methods. Based on the CHIME/FRB Catalog 1, we calculate the energy functions for four subsamples, including apparent non-repeating FRBs (one-offs), repeaters, multi-structural one-offs, and the joint repeaters and multi-structural events, respectively. We then derive the FRB event rates at different redshifts for all four subsamples, all of which were found to share a similar cosmological evolution trend. However, we find that the multi-structural one-offs and repeaters are distinguishable from the KS and MWW tests.
摘要：
The decay E-b -> A0bx-- is observed using a proton-proton collision data sample collected at center-of-ffiffimass energy p s 1/4 13 TeV with the LHCb detector, corresponding to an integrated luminosity of 5.5 fb-1. This process is mediated by the s -> uu over bar d quark-level transition, where the b quark in the E-b baryon is a spectator in the decay. Averaging the results obtained using the two A0b decay modes, A0b -> A thorn c x-- and A0b -> A thorn c x--x- thorn x--, the relative production ratio is measured to be ofE-b =fA0b thorn BoE-b -> A0bx-- thorn 1/4 o7.3 ⠂ 0.8 ⠂ 0.6 thorn x 10-4. Here the uncertainties are statistical and systematic, respectively, and fE-bofA0b thorn is the fragmentation fraction for a b quark into a E-b (A0b) baryon. Using an independent measurement of fE-b =fA0b, the branching fraction BoE-b -> A0bx-- thorn 1/4 o0.89 ⠂ 0.10 ⠂ 0.07 ⠂ 0.29 thorn % is obtained, where the last uncertainty is due to the assumed SU(3) flavor symmetry in the determination of fE-b =fA0b.
摘要：
Inverse stochastic resonance (ISR) is a modality of nonlinear response to noise, there is the biggest inhibitory effect of noise on neural electrical activity when the ISR happens. In this paper, the discharge activity of a triple-neuron feed-forward-loop (FFL) motif is investigated under the Gaussian colored noise and electromagnetic induction, where the FFL motif is constructed by Izhikevich neurons and connected by chemical synapse and the FFL motifs are classified into four types by the character of synaptic current. Here, the ISR induced by the Gaussian colored noise and electromagnetic induction is focused and various effects of different system parameters on ISR have been found. The most prominent ISR phenomenon will be seen in the case of low-input current and low cross-correlation ratio. There are no significant differences in the ISR curves for various chemical coupling strengths and chemical synapse delays, which conforms to the dynamic mechanisms of the ISR behavior. Besides, the ISR phenomenon also ensues under low electromagnetic induction levels and the effects of electromagnetic induction on the ISR are discussed. The results found here provide a novel perspective about the inhibitory effect on neural motif, which might help the biologists and pathologists understand some complex physiological phenomena of the nervous systems.
摘要：
In this paper, we propose a scheme for measurement-based control of hybrid Einstein-Podolsky-Rosen (EPR) entanglement and steering between distant macroscopic mechanical oscillator and yttrium iron garnet (YIG) sphere in a system of an electromechanical cavity unidirectionally coupled to an electromagnonical cavity. We reveal that when the output of the electromagnonical cavity is continuously monitored by homodyne detection, not only the phonon-magnon entanglement and steering but also the purities of the phononic, magnonic and phonon-magnon states are considerably enhanced. We also find that the measurement can effectively retrieve the magnon-to-phonon steering, which is not yet obtained in the absence of the measurement. We show that unconditional phonon-magnon entanglement and steering can be achieved by introducing indirect feedback to drive the magnon and mechanical subsystems. The long-distance macroscopic hybrid entanglement and steering can be useful for, e.g., fundamental tests for quantum mechanics and quantum networks.
摘要：
As an novel paradigm, computation offloading in the mobile edge computing (MEC) system can effectively support the resource-intensive applications for the mobile devices (MD) equipped with limited computing capability. However, the hostile radio transmission and data leakage during the offloading process may erode the MEC system's potential. To tackle these hindrances, we investigate an IRS-assisted secure MEC system with eavesdroppers, where the intelligent reflecting surface (IRS) is deployed to enhance the communication between the MD and the AP equipped with edge servers and the malicious eavesdroppers may attack the wireless data offloaded by MD. The MD opt for offloading part of the tasks to the edge server for execution to support the computation-intensive applications. Moreover, the relevant latency minimization problem is formulated by optimizing the offloading ratio, the allocation of edge server computing capability, the multiple-user-detection (MUD) matrix and the IRS phase shift parameters, subject to the constraints of edge computation resource and practical IRS phase shifts. Then, the original problem is decouple into two subproblem, and the computing and communication subproblems are alternatively optimized by block coordinate descent (BCD) method with low complexity. Finally, simulation results demonstrate that the proposed scheme can significantly enhance the performance of secure offloading in the MEC system.(c) 2023 Elsevier B.V. All rights reserved.
作者机构：
[Wang, N.; Yuen, R.; Yuan, J. P.; Yao, J. M.; Wang, J. B.; Yan, W. M.; Wu, Q. D.; Wang, N; Zhou, X.; Wang, S. Q.; Kou, F. F.; Sun, S. N.; Zhao, D.; Li, D.] Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China.;[Wu, Q. D.; Chen, Y. T.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;[Wang, N.; Yuen, R.; Yuan, J. P.; Yao, J. M.; Wang, J. B.; Yan, W. M.; Wu, Q. D.; Wang, N; Zhou, X.; Wang, S. Q.; Kou, F. F.; Sun, S. N.; Zhao, D.] Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China.;[Wang, N.; Yuen, R.; Yuan, J. P.; Yao, J. M.; Yan, W. M.; Wu, Q. D.; Wang, N; Zhou, X.; Wang, S. Q.; Kou, F. F.; Sun, S. N.; Zhao, D.] Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China.;[Wang, P.; Meng, L. Q.; Xue, M. Y.; Zhu, W. W.; Zhang, L.; Chen, Y. T.; Miao, X. L.; Niu, J. R.; Niu, C. H.; Qian, L.; Yuan, M.; Li, D.; Yue, Y. L.] Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100101, Peoples R China.
通讯机构：
[Wang, N ] C;Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi 830011, Xinjiang, Peoples R China.;Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Xinjiang, Peoples R China.;Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China.
摘要：
PSR J2150+3427 is a 0.654 s pulsar discovered by the Commensal Radio Astronomy FAST Survey. From the follow-up observations, we find that the pulsar is in a highly eccentric orbit (e = 0.601) with an orbital period of 10.592 days and a projected semimajor axis of 25.488 lt-s. Using 2.7 yr of timing data, we also measured the rate of periastron advance omega(center dot) = 0.0115(4) deg yr(-1). An estimate for the total mass of the system using the omega(center dot) gives M-tot = 2.59(13)M-circle dot, which is consistent with most of the known double neutron star (DNS) systems and one neutron star (NS)-white dwarf (WD) system named B2303+46. Combining omega(center dot) with the mass function of the system gives the masses of M-p < 1.67 and M-c > 0.98 M-circle dot for the pulsar and the companion star, respectively. This constraint, along with the spin period and orbital parameters, suggests that it is possibly a DNS system, and we cannot entirely rule out the possibility of an NS-WD system. Future timing observations will vastly improve the uncertainty in omega(center dot), and are likely to allow the detection of additional relativistic effects, which can be used to modify the values of M-p and M-c. With a spin-down luminosity of omega(center dot) = 5.07(6) x 10(29) erg s(-1), PSR J2150+3427 is a very low-luminosity pulsar, with only the binary pulsar J2208+4610 having a smaller omega(center dot).
作者机构：
[Ketel, T.; Tuning, N.; Usachov, A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Veronesi, M.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Massafferri, A.; Cruz Torres, M.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Gomes, A.; Torres Machado, D.; dos Reis, A. C.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.;[Lopes, J. H.; Polycarpo, E.; Souza De Paula, B.; Souza De Almeida, F. L.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Otalora Goicochea, J. M.; Gomes, A.; De Paula, L.; Nasteva, I.; Amato, S.; Meyer Garcia, L.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.;[Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Hu, X.; Tan, Y.; Gu, C.; Gong, G.; Kang, Y.; Qi, H. R.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
摘要：
The ratios of branching fractions R(D^{*})≡B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}μ^{-}ν[over ¯]_{μ}) and R(D^{0})≡B(B^{-}→D^{0}τ^{-}ν[over ¯]_{τ})/B(B^{-}→D^{0}μ^{-}ν[over ¯]_{μ}) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb^{-1} of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τ^{-}→μ^{-}ν_{τ}ν[over ¯]_{μ}. The measured values are R(D^{*})=0.281±0.018±0.024 and R(D^{0})=0.441±0.060±0.066, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is ρ=-0.43. The results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the standard model.
作者机构：
[Qiu, Yi-Wei; Feng, Sheng-Qin] China Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China.;[Feng, Sheng-Qin] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Feng, Sheng-Qin] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Feng, Sheng-Qin] China Three Gorges Univ, Ctr Astron & Space Sci, Yichang 443002, Peoples R China.
通讯机构：
[Feng, SQ ] C;China Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China.;Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;China Three Gorges Univ, Ctr Astron & Space Sci, Yichang 443002, Peoples R China.
摘要：
We investigate the magnetized QCD matter and chiral phase transition in a (2 thorn 1)-flavor Nambu-Jona-Lasinio (NJL) model at finite temperature and chemical potential by comparing the contributions from the tensor spin polarization (TSP) and anomalous magnetic moment (AMM) of quarks. For light u and d quarks, when TSP and AMM are not considered, the magnetized system is characterized by magnetic catalysis. The introduction of TSP will further enhance the magnetic catalytic characteristics. On the other hand, when AMM is introduced, the phase-transition temperature decreases with the magnetic field, which is the feature of inverse magnetic catalysis. The phase diagram of u and d quarks will change from the crossover phase transition to the first order phase transition with the increase of magnetic field and chemical potential when AMM is induced. The phase diagram will not change from the crossover phase transition to the first-order phase transition when TSP is induced. For the phase diagram of strange s quark, whether TSP or AMM is induced, the phase diagram will keep a crossover phase transition with the increase of magnetic field and chemical potential.
期刊：
EUROPEAN PHYSICAL JOURNAL C,2023年83(7):1-14 ISSN：1434-6044
通讯作者：
Pang, LG
作者机构：
[Pang, Long-Gang; Wang, Xin-Nian; Yang, Zhong] Cent China Normal Univ, Inst Particle Phys, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[He, Yayun] South China Normal Univ, Inst Quantum Matter, Guangdong Prov Key Lab Nucl Sci, Guangzhou 510006, Peoples R China.;[He, Yayun] South China Normal Univ, Southern Nucl Sci Comp Ctr, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Guangdong, Peoples R China.;[Chen, Wei] Wuhan Univ Sci & Technol, Coll Sci, Wuhan 430065, Peoples R China.;[Ke, Wei-Yao; Wang, Xin-Nian] Univ Calif Berkeley, Phys Dept, Berkeley, CA 94720 USA.
通讯机构：
[Pang, LG ] C;Cent China Normal Univ, Inst Particle Phys, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
摘要：
Mach cones are expected to form in the expanding quark-gluon plasma (QGP) when energetic quarks and gluons traverse the hot medium at a velocity faster than the speed of sound in high-energy heavy-ion collisions. The shape of the Mach cone and the associated diffusion wake are sensitive to the initial jet production location and the propagation direction of the parton shower relative to the radial flow because of the distortion caused by the collective expansion of the QGP and the large density gradient. The shape of jet-induced Mach cones and their distortions in heavy-ion collisions provide a unique and direct probe of the dynamical evolution and the equation of state of QGP. However, it is difficult to identify the Mach cone and the diffusion wake in current experimental measurements of final hadron distributions because they are averaged over all possible initial jet production locations and parton-shower propagation directions. To overcome this difficulty, we develop a deep learning assisted jet tomography which uses the full information of the final hadrons from jets to localize the initial jet production positions. This method can help to constrain the initial regions of jet production in heavy-ion collisions and enable a differential study of Mach-cones with different path lengths and orientations relative to the radial flow of the QGP in heavy-ion collisions.
作者机构：
[Yang, Ya-Dong; Zheng, Dong-Hui; Kong, Ya-Ru; Li, Xin-Qiang] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.;[Yang, Ya-Dong; Zheng, Dong-Hui; Kong, Ya-Ru; Li, Xin-Qiang] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.;[Lai, Li-Fen] Shangrao Normal Univ, Sch Phys & Elect Informat, Shangrao 334001, Peoples R China.;[Li, Xin-Qiang] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.;[Yan, Xin-Shuai; Yang, Ya-Dong; Yan, XS] Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R China.
通讯机构：
[Yan, XS ] H;Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R China.
摘要：
The absence of semitauonic decays of charmed hadrons makes the decay processes mediated by the quark-level c -> d tau thorn nu tau transition inadequate for probing a generic new physics (NP) with all kinds of Dirac structures. To fill in this gap, we consider in this paper the quasielastic neutrino scattering process nu tau thorn n -> tau- thorn Lambda c, and propose searching for NP through the polarizations of the tau lepton and the Lambda c baryon. In the framework of a general low-energy effective Lagrangian, we perform a comprehensive analysis of the (differential) cross sections and polarization vectors of the process both within the Standard Model and in various NP scenarios, and scrutinize possible NP signals. We also explore the influence on our findings due to the uncertainties and the different parametrizations of the Lambda c -> N transition form factors, and show that they have become one of the major challenges to further constrain possible NP through the quasielastic scattering process.
期刊：
Chemical Engineering Journal,2023年459:141649 ISSN：1385-8947
通讯作者：
Huang, Yongxin(huangyx@bit.edu.cn)
作者机构：
[Zhang, Xinyi; Yan, Zehua; Rui, Zhen; Wang, Jiayao; Deng, Wenwen] Suzhou Univ Sci & Technol, Sch Mat Sci & Engn, Suzhou 215000, Peoples R China.;[Yang, Ze] Cent China Normal Univ, Sch Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.;[Huang, Yongxin] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China.
通讯机构：
[Yongxin Huang] B;[Wenwen Deng] S;School of Material Science and Engineering, Suzhou University of Science and Technology, Suzhou 215000, China<&wdkj&>Beijing Key Laboratory of Environmental Science and Engineering, School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081 China
关键词：
Aqueous zinc-ion battery;Tetrathiafulvalene;High rate and long life-span;Low temperatures
作者机构：
[Ketel, T.; Tuning, N.; Mauri, A.; Usachov, A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Veronesi, M.; Akiba, K.; Aaij, R.; Snoch, A.; van Beuzekom, M.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; Butter, J. S.; Koppenburg, P.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Massafferri, A.; Cruz Torres, M.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Leite, JBD; Gomes, A.; Torres Machado, D.; dos Reis, A. C.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.;[Lopes, J. H.; Polycarpo, E.; Souza De Paula, B.; Souza De Almeida, F. L.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Otalora Goicochea, J. M.; De Paula, L.; Nasteva, I.; Amato, S.; Meyer Garcia, L.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.;[Wang, Z.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Hu, X.; Tan, Y.; Gu, C.; Gong, G.; Kang, Y.; Qi, H. R.; Chen, C.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.; Gan, Y.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Ma, L.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Tobin, M.; Miao, D.; Grieser, N. A.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.] Inst High Energy Phys, Beijing, Peoples R China.
通讯机构：
[Leite, JBD ] C;Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
摘要：
The branching fraction of the rare decay Lambda(0 )(b)-> Lambda(1520)mu(+)mu(-) is measured for the first time, in the squared dimuon mass intervals q(2), excluding the J/psi and psi(2S) regions. The data sample analyzed was collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb(-1). The result in the highest q(2) interval, q(2) > 15.0 GeV2/c(4), where theoretical predictions have the smallest model dependence, agrees with the predictions.
作者机构：
[Gao, Zhan; Wang, Lei] Cent China Normal Univ, MOE, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China.;[Gao, Zhan; Wang, Lei] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Chen, Lin; Xiao, Bo -Wen] Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen 518172, Peoples R China.;[Chen, Lin] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China.;[Wei, Shu-Yi; Shi, Yu] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Key Lab Particle Phys & Particle Irradiat, MOE, Qingdao 266237, Shandong, Peoples R China.
摘要：
Motivated by recent experimental LHC measurements on the forward inclusive jet productions and based on our previous calculations on forward hadron productions, we calculate a single inclusive jet cross section in pA collisions at forward rapidity within the color glass condensate framework up to the next-to -leading order. Moreover, with the application of a jet algorithm and proper subtraction of the rapidity and collinear divergences, we further demonstrate that the resulting next-to-leading-order hard coefficients are finite. In addition, in order to deal with the large logarithms that can potentially spoil the convergence of the perturbative expansion and improve the reliability of the numerical predictions, we introduce the collinear jet function and the threshold jet function and resum these large logarithms hidden in the hard coefficients.
作者：
Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...
期刊：
Journal of High Energy Physics,2023年2023(10):1-8 ISSN：1029-8479
通讯作者：
Belyaev, I
作者机构：
[Ketel, T.; Tuning, N.; Usachov, A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Veronesi, M.; Akiba, K.; Aaij, R.; Snoch, A.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Da Graca, U. De Freitas Carneiro; Baptista de Souza Leite, J.; Massafferri, A.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Torres, M. Cruz; Machado, D. Torres; Gomes, A.; dos Reis, A. C.; Santoro, L.] CBPF, Rio De Janeiro, Brazil.;[De Paula, B. Souza; Lopes, J. H.; Goicochea, J. M. Otalora; Polycarpo, E.; Gandelman, M.; Rangel, M. S.; Hicheur, A.; Gomes, A.; Garcia, L. Meyer; Rodrigues, F. Ferreira; De Paula, L.; Nasteva, I.; Amato, S.; De Almeida, F. L. Souza] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.;[Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Hu, X.; Tan, Y.; Gu, C.; Gong, G.; Kang, Y.; Qi, H. R.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.] IHEP, Beijing, Peoples R China.
通讯机构：
[Belyaev, I ] C;CERN, Geneva, Switzerland.
关键词：
B Physics;Branching fraction;Charm Physics;Hadron-Hadron Scattering
摘要：
The B+ → Jψη′K+ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1. The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to beBB+→Jψη′K+BB+→ψ2SK+=4.91±0.47±0.29±0.07×10−2,\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \frac{\mathcal{B}\left({B}^{+}\to {J\psi \eta}^{\prime }{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to \psi (2S){K}^{+}\right)}=\left(4.91\pm 0.47\pm 0.29\pm 0.07\right)\times {10}^{-2}, $$\end{document}where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη′ mass distribution is performed and no signal of intermediate resonances is observed.
期刊：
Sensors and Actuators B-Chemical,2023年381:133429 ISSN：0925-4005
通讯作者：
Yan Wang
作者机构：
[Ma, Weijia; Wang, Yan] Hubei Minzu Univ, Sch Chem & Environm Engn, Enshi 445000, Peoples R China.;[Fu, Yuheng] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China.;[Tan, Jianfeng; Meng, Gaoxiang] Hubei Minzu Univ, Key Lab Green Mfg Superlight Elastomer Mat State E, Enshi 445000, Peoples R China.;[Tan, Jianfeng; Meng, Gaoxiang] Hubei Minzu Univ, Coll Intelligent Syst Sci & Engn, Enshi 445000, Peoples R China.;[Tan, Wenhu] Cent China Normal Univ, Dept Phys Sci & Technol, Wuhan 430079, Peoples R China.
通讯机构：
[Yan Wang] S;School of Chemical and Environmental Engineering, Hubei Minzu University, Enshi 445000, PR China
关键词：
Nature-inspired;Branch-leaf structure;Electronic structure regulation;Flexibility;Room-temperature;NO2 gas sensor
摘要：
Flexible room-temperature (RT) gas sensors are highly desirable due to their low power consumption and wearability. However, it is very challenging to integrate excellent mechanical flexibility and superior gas sensing properties. Here, polyacrylonitrile (PAN) nanofiber/cobalt-doping SnS2 nanosheets with nature-inspired "branch-leaf" structure was well tailored by directly grown Co-SnS2 ultrathin nanosheets on PAN nanofiber for the first time. With the interfacial bonding interaction between PAN substrate and SnS2 nanosheets, the geometrical deformability of composite structure, the interfacial bonding force, stress distribution, transfer and dissipation will be enhanced. Moreover, the electronic structure and S vacancy are regulated by Co-doping, then improve the gas transmission/diffusion, gas sensitive reactivity and carrier transfer/transport properties. The integrated RT NO2 gas sensor exhibits excellent flexibility (minimum radius of curvature is 3.9 mu m), high response, fast response/recovery speed (6.2 and 27.5/60 s). Meanwhile, it possesses a low detection limit and long-term sta-bility. This comprehensive strategy for the integration of mechanical and gas sensitive properties unlocks the inherent bottlenecks of conventional film-based gas sensors and open a new design avenue for the development of flexible electronics.
作者机构：
[Hu, Kun; Katsuragawa, Taishi; Katsuragawa, T] Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.;[Narori, Shin'ichi; Yamakoshi, Makishi] Nagoya Univ, Dept Phys, Nagoya 4648602, Japan.;[Narori, Shin'ichi] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Universe, Nagoya 4648602, Japan.;[Qiu, Taotao] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
通讯机构：
[Katsuragawa, T ] C;Cent China Normal Univ, Inst Astrophys, Wuhan 430079, Peoples R China.
摘要：
f(Q) gravity is an extension of the symmetric teleparallel equivalent to general relativity (STEGR). This work shows that based on the scalar-nonmetricity formulation, a scalar mode in f(Q) gravity has a negative kinetic energy. This conclusion holds regardless of the coincident gauge frequently used in STEGR and f(Q) gravity. To study the scalar mode, we further consider the covariant f(Q) gravity as a special class in higher-order scalar tensor (HOST) theory and rewrite the four scalar fields, which play a role of the Stueckelberg fields associated with the diffeomorphism, by vector fields. Applying the standard Arnowitt-Deser-Misner (ADM) formulation to the new formulation of the f(Q) gravity, we demonstrate that the ghost scalar mode can be eliminated by the second-class constraints, thus ensuring that f(Q) gravity is a healthy theory.
作者机构：
[Xu, Hongbo; Zhu, Li; Li, Ruijie; Chen, Yun; Zhang, Guoping] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;[Zhu, Li] Hubei Minzu Univ, Coll Intelligent Syst Sci & Engn, Enshi 445000, Peoples R China.
通讯机构：
[Zhang, GP ] C;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.
摘要：
Intelligent reflective surface (IRS) and unmanned aerial vehicle (UAV) communication are two key technologies in the sixth generation of mobile communication (6G). In this paper, IRS is equipped on UAV to form aerial IRS, which can achieve 360° panoramic full-angle reflection and flexible deployment of IRS. In order to achieve high-quality and ubiquitous network coverage under data privacy and low latency requirements, we propose an Federated learning (FL) network via Over-the-Air computation (AirComp) in IRS-assisted UAV communications. Our goal is to minimize the worst-case mean square error (MSE) by jointly optimizing the IRS phase shift, denoising factor for noise suppression, the user's transmission power, and UAV trajectory. Optimizing and quickly adjusting the UAV position and IRS phase shift, it flexibly assists the signal transmission between users and base stations (BS). In order to solve this complex non-convex problem, we propose a low-complexity iterative algorithm, which divides the original problem into four sub-problems, respectively using the semi-definite programming (SDP) method, slack variable introduction method, successive convex approximation (SCA) method to solve each sub-problem. Through the analysis of simulation results, our proposed design scheme is obviously better than other benchmark schemes.
