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Register a new userThe estimation of neutrino fluxes produced by proton-proton collisions at $sqrt{s}=14$ TeV of the LHC
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HyangKyu Park
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Intense and collimated neutrino beams are produced by charm and beauty particle decays from proton-proton collisions at the LHC. A neutrino experiment would be run parasitically without interrupting the LHC physics program during the collider run. We estimate the neutrino fluxes from proton-proton collisions at $sqrt{s}=14$ TeV of the LHC with the designed luminosity, $10^{34} lumi$. By mounting about 200 tons of fiducial volume of a neutrino detector at 300 $m$ away from the interaction point, about 150,000 of charged current neutrino events per year can be observable.
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Production of $B_c^+$ mesons in proton-proton collisions at a center-of-mass energy of 8 TeV is studied with data corresponding to an integrated luminosity of $2.0~{rm fb}^{-1}$ recorded by the LHCb experiment. The ratio of production cross-sections times branching fractions between the $B_c^+to J/psi pi^+$ and $B^+to J/psi K^+$ decays is measured as a function of transverse momentum and rapidity in the regions $0 < p_{rm T} < 20~{rm GeV}/c$ and $2.0 < y < 4.5$. The ratio in this kinematic range is measured to be $(0.683pm0.018pm0.009)%$, where the first uncertainty is statistical and the second systematic.
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