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Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the Ω0c Baryon

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成果类型:
期刊论文
作者:
Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...
通讯作者:
Aaij, R
作者机构:
[Ketel, T.; Mulder, M.; Tuning, N.; Perez, D. H. Campora; Usachov, A.; de Boer, J.; de Vries, J. A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; De Bruyn, K.; Biolchini, A.; Martinez, M. Lucio; Jans, E.; Vos, K.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; 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.; Gras, C. Sanchez; Nicotra, D.; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Da Graca, U. De Freitas Carneiro; 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.; Leite, J. Baptista de Souza] 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.; Barbosa, I. R.; Gomes, A.; Garcia, L. Meyer; Rodrigues, F. Ferreira; Goebel, C.; De Paula, L.; Nasteva, I.; Amato, S.; De Almeida, F. L. Souza] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.
[Cai, H.; Bian, L.; Liu, G.; Xian, S.; Wang, Z.; Qu, S.; Qin, N.; Li, T.; Ren, Z.; Xu, L.; Tou, D. Y.; Huang, X.; Li, H.; Wang, J.; Li, A.; Hu, X.; Hu, J.; Song, Y.; Tan, Y.; Gong, G.; Wang, X.; Bursche, A.; Lian, Z.; Kang, Y.; Fang, B.; Qi, H. R.; Zhu, X.; Sun, L.; 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.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Feo, M.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.; Xiang, Z.] IHEP, Beijing, Peoples R China.
通讯机构:
[Aaij, R ] N
Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2024
卷:
132
期:
8
页码:
081802
基金类别:
CERN; CAPES (Brazil); CNPq (Brazil); FAPERJ (Brazil); FINEP (Brazil); MOST (China); NSFC (China); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); XuntaGal (Spain); MPG (Germany); GENCAT (Spain); INFN (Italy); Prog. Atraccion Talento, CM (Spain); NWO (The Netherlands); SRC (Sweden); MNiSW (Poland); Leverhulme Trust (United Kingdom); NCN (Poland); UKRI (United Kingdom); MEN/IFA (Romania); Royal Society (United Kingdom); MICINN (Spain); SNSF (Switzerland); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP (U.S.A.); NSF (U.S.A.); ARC (Australia); ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET (European Union); Marie Sklodowska-Curie Actions (European Union); ERC (European Union); A*MIDEX (France); ANR (France); IPhU (France); Labex P2IO (France); Region Auvergne-Rhone-Alpes (France); Key Research Program of Frontier Sciences of CAS (China); CAS PIFI (China); CAS CCEPP (China); Fundamental Research Funds for the Central Universities (China); Sci. & Tech. Program of Guangzhou (China); GVA (Spain)
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
The first observation of the singly Cabibbo-suppressed 0c -> -K thorn and 0c -> -z thorn decays is reported, using proton -proton collision data at a center -of -mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb-1, collected with the LHCb detector between 2016 and 2018. The branching fraction ratios are measured to be Bo0c ->-K thorn thorn Bo0c ->-z thorn thorn 1/4 1/26.08 ⠂ 0.51ostat thorn ⠂ 0.40osyst thorn ⠃%; Bo0c ->-z thorn thorn Bo0c ->-z thorn thorn 1/4 1/215.81 ⠂ 0.87ostat thorn ⠂ 0.44osyst thorn ⠂ 0.16oext...

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