Publikace na Matematicko-fyzikální fakulta |
2011
Abstrakt
Measurements of the differential production cross sections d sigma/dp(T)(B) and d sigma/dy(B) for B(0) mesons produced in pp collisions at root s = 7 TeV are presented. The data set used was collected by the CMS experiment at the LHC and corresponds to an integrated luminosity of 40 pb(-1).
The production cross section is measured from B(0) meson decays reconstructed in the exclusive final state J/psi K(S)(0), with the subsequent decays J psi -} mu(+)mu(-) and K(S)(0) -} pi(+)pi(-). The total cross section for p(T)(B) } 5 GeV and |y(B)| { 2: 2 is measured to be 33.2 +/- 2.5 +/- 3.5 mu b, where the first uncertainty is statistical and the second is systematic.