Measurement of the $$B^0_\mathrm{s}\to J/\psi K^0_\mathrm{S}$$ effective lifetime from proton-proton collisions at $$\sqrt{s} = 13$$ TeV
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The effective lifetime of the $$ {\textrm{B}}_{\textrm{s}}^0 $$ meson in the decay $$ {\textrm{B}}_{\textrm{s}}^0\to \textrm{J}/{\uppsi \textrm{K}}_{\textrm{S}}^0 $$ is measured using data collected during 2016–2018 with the CMS detector in $$ \sqrt{s} $$ = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb$$^{−1}$$. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the $$ {\textrm{B}}_{\textrm{s}}^0 $$ meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.[graphic not available: see fulltext]
- Research Organization:
- Haute Alsace U.; Notre Dame U.; Texas A-M; KIT, Karlsruhe, IKP; Perugia U.; Helsinki Inst. of Phys.; Iberoamericana U.; LIP, Lisbon; Puerto Rico U., Mayaguez; Hanyang U.; Bucharest, IFIN-HH; Kansas U.; INFN, Bari; Antwerp U.; VINCA Inst. Nucl. Sci., Belgrade; Eotvos U.; TIFR, Mumbai, DHEP; INFN, Turin; Baylor U.; Aachen, Tech. Hochsch.; AUM, Kuwait; Bogazici U.; U. Debrecen, Inst. Phys.; Florida U.; Bhubaneswar, Inst. Phys.; Split U.; Visva Bharati U.; IPM, Tehran; Sejong U.; Rio de Janeiro State U.; Nanjing Normal U.; Naval Academy, Annapolis; CINVESTAV, IPN; UCLA; Ruhuna U.; Inst. Scintill. Mat., Kharkiv; Catholic U. America; Antioquia U.; Yildiz Tech. U.; U. Campinas; Wisconsin U., Madison; Purdue U., Calumet; AGH-UST, Cracow; Beihang U.; Bhubaneswar, NISER; Florida Inst. Tech.; MIT; Guglielmo Marconi U.; Warsaw U.; Natl. Tech. U., Athens; Sinop U.; Kansas State U.; Panjab U.; Adiyaman U.; Alabama U.; Vienna, OAW; INFN, Catania; Fudan U.; Strasbourg, IPHC; Madrid, Autonoma U.; INFN, Pisa; UC, Davis; Cyprus U.; DESY; INFN, Rome; South China Normal U.; Istinye U., Istanbul; Beijing, Inst. High Energy Phys.; NCBJ, Swierk; Athens U.; Istanbul U.; Boskovic Inst., Zagreb; Iowa U.; Rice U.; IRFU, Saclay; Kyung Hee U.; INFN, Padua; Puebla U., Inst. Fis.; Pisa U.; Peking U.; Hefei, CUST; Sofiya, Inst. Nucl. Res.; Korea U.; Cairo U.; Boston U.; Split Tech. U.; Tashkent, IYF; Catania, CSFNSM; Cornell U.; UC, Riverside; KIT, Karlsruhe, EKP; Princeton U.; Marmara U.; Cairo, Acad. Sci. Res. Tech.; PSI, Villigen; Andes U., Bogota; Democritos Nucl. Res. Ctr.; Rio de Janeiro, CBPF; Lappeenranta U. Tech.; INFN, Naples; CHEP, Taegu; Debrecen, Inst. Nucl. Res.; CERN; INFN, Bologna; INFN, Perugia; Pisa, Scuola Normale Superiore; Seoul U.; Conacyt, Mexico; Riga Tech. U.; Colorado U.; Nebraska U.; Southampton U.; Gent U.; Annecy, LAPP; Ioannina U.; Kuwait U.; Sungkyunkwan U.; Florida State U.; Rutgers U., Piscataway; Helwan U.; Middle East Tech. U., Ankara; Minnesota U.; Zurich U.; Isfahan Tech. U.; University Coll., Dublin; British U. in Egypt; IAS, Julich; Seoul Natl. U.; EKU KRC, Gyongyos; Madrid, CIEMAT; Quaid-i-Azam U.; Catania U.; Louvain U.; Sharif U. of Tech.; Naples U.; Turin U.; Virginia U.; Johns Hopkins U.; Rome U.; San Francisco de Quito U.; IISER, Pune; Ain Shams U., Cairo; Vanderbilt U.; Kharkov, KIPT; Tennessee U.; Tsinghua U., Beijing; SYSU, Guangzhou; Maryland U.; INFN, Trieste; CC, Villeurbanne; Malaya U.; Ohio State U.; Yerevan Phys. Inst.; INFN, Genoa; Unlisted; Bingöl U.; Indian Inst. Tech., Bhubaneswar; Istanbul Tech. U.; Delhi U.; Caltech; Purdue U.; Carnegie Mellon U.; NICPB, Tallinn; Rochester U.; Tata Inst.; Oviedo U.; Cukurova U.; Budapest, RMKI; Colombo U.; Texas Tech.; Zurich, ETH; Saha Inst.; Fayoum U.; Yonsei U.; Bethel Coll.; Northwestern U.; ENEA, Bologna; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Gangneung-Wonju Natl. U.; Indian Inst. Tech., Madras; UC, San Diego; Chulalongkorn U.; Canterbury U.; ABC Federal U.; Sofiya U.; USTM, Behshahr; Bristol U.; Karamanoglu Mehmetbey U., Karaman; Tarapaca U.; Frascati; IP2I, Lyon; GTU, Tbilisi; Illinois U., Chicago; Brandenburg Tech. U.; Charles U.; Imperial Coll., London; UCAS, Beijing; Vrije U., Brussels; Monash U.; Brunel U.; Hacettepe U.; Brown U.; Bangalore, Indian Inst. Sci.; INFN, Pavia; Erzincan U.; Wayne State U.; Chonnam Natl. U.; Northeastern U.; Taiwan, Natl. Taiwan U.; Cantabria Inst. of Phys.; Brussels U.; Helsinki U.; Belgrade U.; Vilnius U.; Montenegro U.; Rutherford; Hamburg U.; Taiwan, Natl. Central U.; Ecole Polytechnique; INFN, Florence; Sonora U.; Bari U.; Stefan Meyer Inst. Subatomare Phys.; Kafkas U.; UC, Santa Barbara; Zhejiang U.; TU Vienna; Texas A&M U. Qatar, Doha; SUNY, Buffalo; Rio Grande do Sul U.; Zewail City Sci. Technol., Giza; Warsaw U. of Tech.; INFN, Milan Bicocca
- Sponsoring Organization:
- US Department of Energy
- Grant/Contract Number:
- AC02-07CH11359; 89243024CSC000002
- OSTI ID:
- 2467473
- Report Number(s):
- CMS-BPH-22-001; CERN-EP-2024-172; FERMILAB-PUB-24-0610-CMS; oai:inspirehep.net:2808929; arXiv:2407.13441
- Journal Information:
- JHEP, Journal Name: JHEP Vol. 10
- Country of Publication:
- United States
- Language:
- English
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