Measurement of prompt to yield ratios in Pb-Pb and - collisions at
Journal Article
·
· Physical Review Letters
The ratio between the prompt ψ(2S) and J/ψ yields, reconstructed via their decays into μ⁺μ⁻, is measured in Pb-Pb and p-p collisions at √sNN = 2.76 TeV. The analysis is based on Pb-Pb and p-p data samples collected by CMS at the Large Hadron Collider, corresponding to integrated luminosities of 150 μb⁻¹ and 5.4 pb⁻¹, respectively. The double ratio of measured yields (Nψ(2S)/NJ/ψ)Pb−Pb/(Nψ(2S)/NJ/ψ)p−p is computed in three Pb-Pb collision centrality bins and two kinematic ranges: one at midrapidity, |y| < 1.6, covering the transverse momentum range 6.5 < pT < 30 GeV/c, and the other at forward rapidity, 1.6<|y|<2.4, extending to lower pT values, 3
- Research Organization:
- ABC Federal U.; Aachen, Tech. Hochsch.; Adiyaman U.; Ain Shams U., Cairo; Alabama U.; Andes U., Bogota; Antwerp U.; Argonne National Laboratory (ANL), Argonne, IL (United States); Athens U.; Auckland U.; Bari Polytechnic; Bari U.; Basilicata U., Potenza; Baylor U.; Beijing, Inst. High Energy Phys.; Belgrade U.; Bhabha Atomic Res. Ctr.; Bhubaneswar, NISER; Bogazici U.; Bologna U.; Boskovic Inst., Zagreb; Boston U.; Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brunel U.; Brussels U.; Budapest, RMKI; CC, Villeurbanne; CERN; CHEP, Taegu; CINVESTAV, IPN; Cag U., Mersin; Cairo U.; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Canterbury U.; Carnegie Mellon U.; Catania U.; Charles U.; Chonbuk Natl. U.; Chonnam Natl. U.; Chulalongkorn U.; Colorado U.; Cornell U.; Cukurova U.; Cyprus U.; DESY; Debrecen, Inst. Nucl. Res.; Delhi U.; Democritos Nucl. Res. Ctr.; Dubna, JINR; Ecole Polytechnique; Eotvos U.; Erzincan U.; Facolta di Ingegneria, Rome; Fairfield U.; Fayoum U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florence U.; Florida Inst. Tech.; Florida Intl. U.; Florida State U.; Florida U.; Frascati; Gaziosmanpasa U.; Genoa U.; Gent U.; Guglielmo Marconi U.; Hamburg U.; Haute Alsace U.; Helsinki Inst. of Phys.; Helsinki U.; IFM-UMSNH, Michoacan; INFN, Bari; INFN, Bologna; INFN, Catania; INFN, Florence; INFN, Genoa; INFN, Legnaro; INFN, Milan Bicocca; INFN, Naples; INFN, Padua; INFN, Pavia; INFN, Perugia; INFN, Pisa; INFN, Rome; INFN, Trieste; INFN, Turin; IPM, Tehran; IRFU, Saclay; Iberoamericana U.; Illinois U., Chicago; Imperial Coll., London; Ioannina U.; Iowa U.; Isfahan Tech. U.; Islamic Azad U., Sci. Res. Branch, Tehran; Istanbul, Tech. U.; Izmir Inst. Tech.; Jeddah U.; Johns Hopkins U.; KIT, Karlsruhe, EKP; Kafkas U.; Kangweon Natl. U.; Kansas State U.; Kansas U.; Kharkov, KIPT; Korea U.; LIP, Lisbon; Lappeenranta U. Tech.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lebedev Inst.; Louvain U.; Lyon, IPN; MIT; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Mersin U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Mimar Sinan U.; Minnesota U.; Minsk, High Energy Phys. Ctr.; Mississippi U.; Moscow State U.; Moscow, INR; Moscow, ITEP; NCBJ, Swierk; NICPB, Tallinn; Naples U.; Nebraska U.; Northeastern U.; Northwestern U.; Notre Dame U.; Ohio State U.; Oviedo U.; Ozyegin U.; PSI, Villigen; Padua U.; Panjab U.; Paris, IN2P3; Pavia U.; Peking U.; Perugia U.; Piemonte Orientale U., Novara; Pisa U.; Pisa, Scuola Normale Superiore; Princeton U.; Puebla U., Inst. Fis.; Puerto Rico U., Mayaguez; Purdue U.; Purdue U., Calumet; Quaid-i-Azam U.; Rice U.; Rio de Janeiro State U.; Rio de Janeiro, CBPF; Rochester U.; Rockefeller U.; Rome U.; Ruhuna U.; Rutgers U., Piscataway; Rutherford; SUNY, Buffalo; Saha Inst.; San Luis Potosi U.; Sao Paulo, IFT; Seoul U.; Serpukhov, IHEP; Sharif U. of Tech.; Siena U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Southampton U.; Split Tech. U.; Split U.; St. Petersburg Polytechnic Inst.; St. Petersburg, INP; Strasbourg, IPHC; Suez Canal U.; Sungkyunkwan U.; TU Vienna; Taiwan, Natl. Central U.; Taiwan, Natl. Taiwan U.; Tata Inst.; Tbilisi State U.; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Trento U.; Trieste U.; Turin U.; U. Bern, AEC; U. Campinas; U. Debrecen, Inst. Phys.; U. Mons; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCLA; University Coll., Dublin; VINCA Inst. Nucl. Sci., Belgrade; Vanderbilt U.; Vienna, OAW; Vilnius U.; Virginia U.; Visva Bharati U.; Vrije U., Brussels; Warsaw U.; Wayne State U.; Wisconsin U., Madison; Yerevan Phys. Inst.; Yildiz Tech. U.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- US Department of Energy; USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1180945
- Alternate ID(s):
- OSTI ID: 1234853
- Report Number(s):
- CERN-PH-EP-2014-240; CMS-HIN-12-007; FERMILAB-PUB-14-445-CMS; 262301
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 113; ISSN 0031-9007; ISSN PRLTAO
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English