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Paper   IPM / Particles And Accelerator / 11878
School of Particles and Accelerator
  Title:   Measurement of the B 0 Production Cross Section in pp Collisions at p sqrt(s) = 7 TeV
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
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

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