Measurement of the $B^+$ Total Cross Section and $B^+$ Differential Cross Section $dσ/dp_T$ in $p \bar p $ Collisions at $\sqrt{s}=1.8$ TeV

Details Measurement of the $B^+$ Total Cross Section and $B^+$ Differential Cross Section $dσ/dp_T$ in $p \bar p $ Collisions at $\sqrt{s}=1.8$ TeV Measurement of the $B^+$ Total Cross Section and $B^+$ Differential Cross Section $dσ/dp_T$ in $p \bar p $ Collisions at $\sqrt{s}=1.8$ TeV

2001-11-27

arxiv.org/abs/hep-ph/0111359v1

Phys.Rev.D65:052005,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.65.052005

We present measurements of the B+ meson total cross section and differential cross section $d\sigma/ dp_T$. The measurements use a $98\pm 4$ pb^{-1} sample of $p \bar p$ collisions at $\sqrt{s}=1.8$ TeV collected by the CDF detector. Charged $B$ meson candidates are reconstructed through the decay $B^{\pm} \to J/\psi K^{\pm}$ with $J/\psi\to \mu^+ \mu^-$. The total cross section, measured in the central rapidity region $|y|<1.0$ for $p_T(B)>6.0$ GeV/$c$, is $3.6 \pm 0.6 ({\rm stat} \oplus {\rm syst)} \mu$b. The measured differential cross section is substantially larger than typical QCD predictions calculated to next-to-leading order.

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