In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2013, No. 8 ( 2013-08)
Abstract:
The production cross-sections of B mesons are measured in pp collisions at a centre-of-mass energy of 7 TeV, using data collected with the LHCb detector corresponding to a integrated luminosity of 0.36 fb −1 . The B + , B 0 and $ B_s^0 $ mesons are reconstructed in the exclusive decays B + → J / ψK + , B 0 → J / ψK *0 and $ B_s^0\to {J \left/ {{\psi \phi }} \right.} $ , with J / ψ → μ + μ − , K *0 → K + π − and ϕ → K + K − . The differential cross-sections are measured as functions of B meson transverse momentum p T and rapidity y , in the range 0 〈 p T 〈 40 GeV /c and 2 . 0 〈 y 〈 4 . 5. The integrated cross-sections in the same p T and y ranges, including charge-conjugate states, are measured to be $ \begin{array}{*{20}{c}} {\sigma \left( {pp\to {B^{+}}+X} \right)=38.9\pm 0.3\left( {\mathrm{stat}.} \right)\pm 2.5\left( {\mathrm{syst}.} \right)\pm 1.3\left( {\mathrm{norm}.} \right)\upmu \mathrm{b},} \hfill \\ {\sigma \left( {pp\to {B^0}+X} \right)=38.1\pm 0.6\left( {\mathrm{stat}.} \right)\pm 3.7\left( {\mathrm{syst}.} \right)\pm 4.7\left( {\mathrm{norm}.} \right)\upmu \mathrm{b},} \hfill \\ {\sigma \left( {pp\to B_s^0+X} \right)=10.5\pm 0.2\left( {\mathrm{stat}.} \right)\pm 0.8\left( {\mathrm{syst}.} \right)\pm 1.0\left( {\mathrm{norm}.} \right)\upmu \mathrm{b},} \hfill \\ \end{array} $ where the third uncertainty arises from the pre-existing branching fraction measurements.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP08(2013)117
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2013
detail.hit.zdb_id:
2027350-2
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