Measurement of prompt J/? and beauty hadron production cross sections at mid-rapidity in pp collisions at s=7 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00388797" target="_blank" >RIV/68378271:_____/12:00388797 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/12:00388797
Result on the web
<a href="http://dx.doi.org/10.1007/jhep11(2012)065" target="_blank" >http://dx.doi.org/10.1007/jhep11(2012)065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/jhep11(2012)065" target="_blank" >10.1007/jhep11(2012)065</a>

Result language
angličtina
Original language name
Measurement of prompt J/? and beauty hadron production cross sections at mid-rapidity in pp collisions at s=7 TeV
Original language description
The ALICE experiment at the LHC has studied J/? production at midrapidity in pp collisions at s = 7 TeV through its electron pair decay on a data sample corresponding to an integrated luminosity Lint = 5.6 nb 1 . The fraction of J/? from the decay of long-lived beauty hadrons was determined for J/? candidates with transverse momentum pt > 1.3 GeV/c and rapidity |y| < 0.9. The cross section for prompt J/? mesons, i.e. directly produced J/? and prompt decays of heavier charmonium states such as the ?(2S)and ?c resonances, is ?prompt J/? (pt > 1.3 GeV/c, |y| < 0.9) = 8.30.8 (stat.) 1.1 (syst.) +1.5 1.4 (syst. pol.) ?b. The cross section for the production of b-hadrons decaying to J/? with pt > 1.3 GeV/c and |y| < 0.9 is ?J/?(to)hB (pt > 1.3 GeV/c, |y| <0.9) = 1.46 0.38 (stat.) +0.26 0.32 (syst.) ?b. The results are compared to QCD model predictions. The shape of the pt and y distributions of b-quarks predicted by perturbative QCD model calculations are used to extrapolate the measured c
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
<a href="/en/project/LA08015" target="_blank" >LA08015: Collaboration of the Czech Republic with CERN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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