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

Creators: Aad, G.; Perez, K.; ATLAS Collaboration

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, y_φ, of the φ(1020) meson in the fiducial region 500< pT,_φ <1200MeV, |y_φ| < 0.8, kaon pT,_K > 230 MeV and kaon momentum p_K < 800 MeV. The integrated φ(1020)-meson production cross section in this fiducial range is measured to be σ_φ×BR(φ → K^+K^−) = 570 ± 8 (stat) ± 66 (syst) ± 20 (lumi) μb.

Additional Information

© 2014 CERN for the benefit of the ATLAS collaboration. This article is published with open access at Springerlink.com. Received: 26 February 2014. Accepted: 8 May 2014. Published online 01 July 2014. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3. License Version CC BY 4.0. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS,MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, The Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from allWLCGpartners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (The Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.

Attached Files

Published - art_10.1140_epjc_s10052-014-2895-2.pdf

Submitted - 1402.6162v1.pdf

Files

1402.6162v1.pdf

Files (2.8 MB)

Name	Size	Download all
1402.6162v1.pdf md5:ab487de996a5236a7aca0c192888a3e6	1.0 MB	Preview Download
art_10.1140_epjc_s10052-014-2895-2.pdf md5:858cd6843b5c6876211d45bc238a5df8	1.8 MB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes