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Measurement of J/ψ-pair production in pp collisions at √s=13 TeV and study of gluon transverse-momentum dependent PDFs

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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:
Xu, L
作者机构:
[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Monk, M.; Fujii, Y.; Egede, U.; Massafferri, A.; Cruz Torres, M.; Lane, J. J.; De Miranda, J. M.; Henderson, R. D. L.; Falcao, L. N.; Bediaga, I. B.; Hadavizadeh, T.; Gomes, A.; Torres Machado, D.; Song, R.; dos Reis, A. C.; Santoro, L.; Ward, J. A.; Walton, E. J.] Monash Univ, Sch Phys & Astron, Melbourne, Australia.
[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.] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.
[Zheng, X. Z.; Ma, G. M.; Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Zhang, Y. Z.; Hu, X.; Song, Y.; Tan, Y.; Gong, G.; Lian, Z.; Kauniskangas, A. M.; 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.
[Li, Y.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Feng, M.; Liu, S.; Xiang, Z.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
[Gao, Y.; Yang, Z.; Zhou, T.; Dai, X.; Zhang, S.; Yang, X.; Yu, C. Y.; Zhang, Y.; Tong, X.; Shang, Y.; Jiang, Y. J.; Mu, Z. M.; Wang, J.; Wan, G.; Shen, Z.; Hu, W.; Guz, Y.; Saur, M.; Wei, Y.; Song, Y. S.; Wu, Y.; Abrantes, F. Goncalves; Zhang, C.] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China.
通讯机构:
[Xu, L ] T
Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
语种:
英文
关键词:
Hadron-Hadron Scattering;Multi-Parton Interactions;QCD;Quarkonium
期刊:
Journal of High Energy Physics
ISSN:
1029-8479
年:
2024
卷:
2024
期:
3
页码:
1-40
基金类别:
CERN; CAPES (Brazil); CNPq (Brazil); FAPERJ (Brazil); FINEP (Brazil); MOST (China); NSFC (China); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); MPG (Germany); INFN (Italy); NWO (The Netherlands); MNiSW (Poland); NCN (Poland); MEN/IFA (Romania); 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); XuntaGal (Spain); GENCAT (Spain); Prog. Atraccion Talento, CM (Spain); SRC (Sweden); Leverhulme Trust (United Kingdom); UKRI (United Kingdom); Royal Society (United Kingdom)
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 production cross-section of J/ψ pairs in proton-proton collisions at a centre-of-mass energy of $$ \sqrt{s} $$ = 13 TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb−1 collected by the LHCb experiment. The measurement is performed with both J/ψ mesons in the transverse momentum range 0 < pT < 14 GeV/c and rapidity range 2.0 < y < 4.5. The cross-section of this process is measured to be 16.36 ± 0.28 (stat) ± 0.88 (syst) nb. The contributions from single-parton scattering and double-parton...

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