An algorithm is described for tagging the flavour content at production of neutral B mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a B meson with the charge of a reconstructed secondary charm hadron from the decay of the other b hadron produced in the proton-proton collision. Charm hadron candidates are identified in a number of fully or partially reconstructed Cabibbo-favoured decay modes. The algorithm is calibrated on the self-tagged decay modes B+ → J/ψ K+ and B0 → J/ψ K*0 using 3.0 fb^−1 of data collected by the LHCb experiment at pp centre-of-mass energies of 7 TeV and 8 TeV. Its tagging power on these samples of B → J/ψ X decays is (0.30 ± 0.01 ± 0.01)%.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). B Flavour Tagging Using Charm Decays at the LHCb Experiment. JOURNAL OF INSTRUMENTATION, 10(10), 0-15 [10.1088/1748-0221/10/10/P10005].

B Flavour Tagging Using Charm Decays at the LHCb Experiment

Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;ZUCCHELLI, STEFANO
2015

Abstract

An algorithm is described for tagging the flavour content at production of neutral B mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a B meson with the charge of a reconstructed secondary charm hadron from the decay of the other b hadron produced in the proton-proton collision. Charm hadron candidates are identified in a number of fully or partially reconstructed Cabibbo-favoured decay modes. The algorithm is calibrated on the self-tagged decay modes B+ → J/ψ K+ and B0 → J/ψ K*0 using 3.0 fb^−1 of data collected by the LHCb experiment at pp centre-of-mass energies of 7 TeV and 8 TeV. Its tagging power on these samples of B → J/ψ X decays is (0.30 ± 0.01 ± 0.01)%.
2015
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). B Flavour Tagging Using Charm Decays at the LHCb Experiment. JOURNAL OF INSTRUMENTATION, 10(10), 0-15 [10.1088/1748-0221/10/10/P10005].
Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Cartelle, P...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/516515
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