Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5851
Title: Measurements of the ?(1S), ?(2S), and ?(3S) differential cross sections in pp collisions at s=7TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Compact Muon Solenoid
Large Hadron Collider (LHC)
Transverse momentum
Upsilon
Cross section
Issue Date: Oct-2015
Publisher: Elsevier Ltd.
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M.,...CMS Collaboration (2015). Measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections in pp collisions at s=7TeV. Physics Letters, Section B, 749, 14-34. doi:10.1016/j.physletb.2015.07.037
Abstract: Differential cross sections as a function of transverse momentum pT are presented for the production of ϒ(nS) (n = 1, 2, 3) states decaying into a pair of muons. Data corresponding to an integrated luminosity of 4.9fb-1 in pp collisions at s=7TeV were collected with the CMS detector at the LHC. The analysis selects events with dimuon rapidity |y|<1.2 and dimuon transverse momentum in the range 10<pT<100GeV. The measurements show a transition from an exponential to a power-law behavior at pT≈20GeV for the three ϒ states. Above that transition, the ϒ(3S) spectrum is significantly harder than that of the ϒ(1S). The ratios of the ϒ(3S) and ϒ(2S) differential cross sections to the ϒ(1S) cross section show a rise as pT increases at low pT, then become flatter at higher pT.
URI: http://doi.org/10.1016/j.physletb.2015.07.037
http://hdl.handle.net/11147/5851
ISSN: 0370-2693
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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