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Paper   IPM / Particles / 11878
School of Particles and Accelerator
Title:   Measurement of the B 0 Production Cross Section in pp Collisions at p sqrt(s) = 7 TeV
Author(s):
 1 Hessamadin Arfaei 2 Hamed Bakhshiansohi 3 Seyed Mohsen Etesami 4 Ali Fahim 5 Majid Hashemi 6 Abideh Jafari 7 Mohsen Khakzad 8 A Mohammadi 9 Mojtaba Mohammadi Najafabadi 10 Saeid Paktinat Mehdiabadi 11 Batool Safarzadeh 12 Maryam Zeinali
Status:   Published
Journal: Phys. Rev. Lett.
No.:  252001
Vol.:  106
Year:  2011
Supported by:  IPM
Abstract:
Measurements of the differential production cross sections ds/dpBT and ds/dyB for B0 mesons produced in pp collisions at p sqrt(s) = 7 TeV are presented. The dataset used was collected by the CMS experiment at the LHC and corresponds to an integrated luminosity of 40 pb1. The production cross section is measured from B0 meson decays reconstructed in the exclusive final state J/y K0 S, with the subsequent decays J/y ! m+m and K0S ! p+p. The total cross section for pBT > 5 GeV and y B < 2.2 is measured to be 33.2  2.5  3.5 mb, where the first uncertainty is statistical and the second is systematic