Measurement of the B(+) production cross section in pp(-) collisions at root s=1960 GeV RID G-1087-2011 RID E-4473-2011

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doi:10.1103/PhysRevD.75.012010

We present a new measurement of the B(+) meson differential cross section d sigma/dp(T) at root s=1960 GeV. The data correspond to an integrated luminosity of 739 pb(-1) collected with the upgraded CDF detector (CDF II) at the Fermilab Tevatron collider. B(+) candidates are reconstructed through the decay B(+)-> J/psi K(+), with J/psi ->mu(+)mu(-). The integrated cross section for producing B(+) mesons with p(T)>= 6 GeV/c and vertical bar y vertical bar <= 1 is measured to be 2.78 +/- 0.24 mu b.