Author
Chatrchyan, S., Işıldak, Bora
Publication Date
2013-11-25
Publication Place
-
Elsevier
Subject
CMS, Physics, Quarkonia, Upsilon, Dimuons
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1873-2445
Record ID
03955e16-a4f9-40e9-be50-02774689a1a8
Library Location
Natural and Mathematical Sciences
Date
2013-11-25
Notes
BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MEYS ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; SF0690030s09 ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS/IN2P3 ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; SEP ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MSTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; University of California Institute for Mexico and the United States ; the Marie-Curie programme and the European Research Council and EPLANET ; DOE and NSF ; the Leventis Foundation ; the A. P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture ; the Agentschap voor Innovatie door Wetenschap en Technologie ; the Ministry of Education Youth and Sports of Czech Republic ; the Agence Nationale de la Recherche ANR-12-JS05-002-01 ; the Council of Science and Industrial Research India; the Compagnia di San Paolo ; the HOMING PLUS programme of Foundation for Polish Science cofinanced by EU ; Regional Development Fund ; the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF.
Sample Text
The Υ(1S), Υ(2S), and Υ(3S) production cross sections are measured using a data sample corresponding to an integrated luminosity of 35.8±1.4 pb−1 of proton–proton collisions at s√=7 TeV, collected with the CMS detector at the LHC. The ϒ resonances are identified through their decays to dimuons. Integrated over the ϒ transverse momentum range pΥT<50 GeV/c and rapidity range |yΥ|<2.4, and assuming unpolarized ϒ production, the products of the ϒ production cross sections and dimuon branching fractions are σ(pp→Υ(1S)X)⋅B(Υ(1S)→μ+μ−)=(8.55±0.05+0.56−0.50±0.34)nb, σ(pp→Υ(2S)X)⋅B(Υ(2S)→μ+μ−)=(2.21±0.03+0.16−0.14±0.09)nb σ(pp→Υ(3S)X)⋅B(Υ(3S)→μ+μ−)=(1.11±0.02+0.10−0.08±0.04)nb where the first uncertainty is statistical the second is systematic and the third is from the uncertainty in the integrated luminosity. The differential cross sections in bins of transverse momentum and rapidity and the cross section ratios are presented. Cross section measurements performed within a restricted muon kinematic range and not corrected for acceptance are also provided. These latter measurements are independent of ϒ polarization assumptions. The results are compared to theoretical predictions and previous measurements."
DOI
10.1016/j.physletb.2013.10.033
Cilt
727
