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Measurement of b hadron fractions in 13 TeV pp collisions

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成果类型:
期刊论文
作者:
Aaij, R.*;Beteta, C. Abellan;Adeva, B.;Adinolfi, M.;Aidala, C. A.;...
通讯作者:
Aaij, R.
作者机构:
[Ketel, T.; Mulder, M.; Tuning, N.; Hynds, D.; Kotriakhova, S.; De Vries, J. A.; Veronesi, M.; Aaij, R.; Greim, R.; Dufour, L.; Jans, E.; Beiter, A.; Esen, S.; Dall'Occo, E.; Pellegrino, A.; Vitkovskiy, A.; Merk, M.; Van Beuzekom, M.; Archilli, F.; Van Tilburg, J.; Koppenburg, P.; Gras, C. Sanchez; Van Veghel, M.; Raven, G.; Sierra, C. Vazquez; Govorkova, E.; Kostiuk, I.; Benson, S.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Massafferri, A.; De Miranda, J. M.; Torres, M. Cruz; Gomes, A.; Dos Reis, A. C.; Lavra, L. Soares; Bediaga, I.; Aoude, R. Tourinho Jadallah] CBPF, Rio De Janeiro, Brazil.
[De Paula, B. Souza; Lopes, J. H.; Marinho, F. Da Cunha; Goicochea, J. M. Otalora; Polycarpo, E.; Gandelman, M.; Gobel, C.; Rangel, M. S.; Rodrigues, F. Ferreira; Akiba, K. Carvalho; Guimaraes, V. Salustino; De Paula, L.; Nasteva, I.; Amato, S.; De Oliveira, L. Silva] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.
[Gao, Y.; Yang, Z.; Jiang, F.; Xu, A.; Liu, G.; Gandini, P.; Ren, Z.; Tang, Z.; Xu, Z.; Wang, M.; Zhang, W. C.; Gu, C.; Sun, J.; Chen, C.; Zhu, X.; Luo, Y.; Zhang, L.; Gan, Y.; Liu, X.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Belin, S.; Lyu, X.; Szymanski, M.; Xu, Q.; Huang, W.; Li, P. -R.; He, J.; Saur, M.; Qian, W.; Qin, J.; Zheng, Y.; Vieira, D.] Univ Chinese Acad Sci, 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 D
ISSN:
2470-0010
年:
2019
卷:
100
期:
3
基金类别:
CAPES (Brazil)CAPES; CNPq (Brazil)National Council for Scientific and Technological Development (CNPq); FAPERJ (Brazil)Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ); FINEP (Brazil)Ciencia Tecnologia e Inovacao (FINEP); MOST (China)Ministry of Science and Technology, China; NSFC (China)National Natural Science Foundation of China (NSFC); CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); MPG (Germany)Max Planck Society; NWO (Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MinECo (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)Science & Technology Facilities Council (STFC); NSF (USA)National Science Foundation (NSF); DFG (Germany)German Research Foundation (DFG); MSHE (Russia); AvH Foundation (Germany)Alexander von Humboldt Foundation; EPLANET, Marie Sklodowska-Curie Actions; ERC (European Union)European Union (EU)European Research Council (ERC); ANRFrench National Research Agency (ANR); Labex P2IO; OCEVU; Region Auvergne-Rhone-Alpes (France)Region Auvergne-Rhone-Alpes; Key Research Program of Frontier Sciences of CAS, CAS PIFI; Thousand Talents Program (China); RFBR (Russia)Russian Foundation for Basic Research (RFBR); RSF (Russia)Russian Science Foundation (RSF); Yandex LLC (Russia); GVA (Spain); XuntaGal (Spain); GENCAT (Spain); Royal Society (United Kingdom)Royal Society of London; Leverhulme Trust (United Kingdom)Leverhulme Trust; Laboratory Directed Research and Development program of LANL (USA); Science and Technology Facilities CouncilScience & Technology Facilities Council (STFC) [ST/N000331/1, ST/N000242/1] Funding Source: researchfish
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 fractions of (B) over bar (0)(s) and Lambda(0)(b) hadrons, normalized to the sum of B- and (B) over bar (0) fractions, arc measured in 13 TeV pp collisions using data collected by the LHCb experiment, corresponding to an integrated luminosity of 1.67 fb(-1). These ratios, averaged over the b hadron transverse momenta from 4 to 25 GeV and pseudorapidity from 2 to 5, are 0.122 +/- 0.006 for (B) over bar (0)(s) and 0.259 +/- 0.018 for Lambda(0)(b) where the uncertainties arise from both statistical and systematic sources. The Lambda(0)(b) ratio depends strongly on transverse moment...

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