The differential production cross section of the ϕ (1020) meson in √s=7 TeV pp collisions measured with the ATLAS detector

Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and The ATLAS Collaboration, et al. (2014) The differential production cross section of the ϕ (1020) meson in √s=7 TeV pp collisions measured with the ATLAS detector. European Physical Journal C, 74 (2895). ISSN 1434-6044

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Abstract

A measurement is presented of the ϕ×BR(ϕ→K+K−) production cross section at √s=7 TeV using pp collision data corresponding to an integrated luminosity of 383 μb−1, collected with the ATLAS experiment at the LHC. Selection of ϕ (1020) mesons is based on the identification of charged kaons by their energy loss in the pixel detector. The differential cross section is measured as a function of the transverse momentum, pT,ϕ, and rapidity, yϕ, of the ϕ (1020) meson in the fiducial region 500 <pT,ϕ<1200 MeV, |yϕ|<0.8, kaon pT, K>230 MeV and kaon momentum pK<800 MeV. The integrated ϕ(1020)-meson production cross section in this fiducial range is measured to be σϕ×BR(ϕ→K+K−) = 570 ± 8 (stat) ± 66 (syst) ± 20 (lumi) μb.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 03 May 2017 09:12
Last Modified: 03 May 2017 09:20
URI: http://sro.sussex.ac.uk/id/eprint/67630

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Project NameSussex Project NumberFunderFunder Ref
ATLASG0275STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/I006048/1