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Measurement of the B ± production cross-section in pp collisions at $ \sqrt {s} $ = 7 TeV

A bstract The production of B ± mesons in proton-proton collisions at $ \sqrt {s} $ = 7 TeV is studied using 35 pb −1 of data collected by the LHCb detector. The B ± mesons are reconstructed exclusively in the B ± → J/ψK ± mode, with J/ψ → μ + μ − . The differential production cross-section is measu...

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Published in:The journal of high energy physics 2012-04, Vol.2012 (4), Article 93
Main Authors: Beteta, C. Abellan, Adrover, C., Affolder, A., Albrecht, J., Alves, A. A., Arrabito, L., Back, J. J., Barsuk, S., Barter, W., Bay, A., Bediaga, I., Benton, J., Bizzeti, A., Blanc, F., Blanks, C., Blusk, S., Borgia, A., Bowcock, T. J. V., Brown, H., Büchler-Germann, A., Carbone, A., Cardini, A., Charpentier, P., Constantin, F., De Lorenzi, F., Deckenhoff, M., Batista, P. Diniz, Donleavy, S., Dovbnya, A., Dzhelyadin, R., van Eijk, D., Pereira, D. Esperante, Filippov, S., Francisco, O., Frei, C., Torreira, A. Gallas, Gandini, P., Garnier, J-C., Gascon, D., Gligorov, V. V., Diaz, R. Graciani, Greening, E., Gregson, S., Gushchin, E., Haefeli, G., Harnew, N., Henrard, P., Jean-Marie, B., John, M., Karacson, M., Khanji, B., Koopman, R. F., Kozlinskiy, A., Kreps, M., Krocker, G., Langenbruch, C., Lesiak, T., Machefert, F., Machikhiliyan, I. V., Magnin, J., Märki, R., Miglioranzi, S., Rodriguez, J. Molina, Muresan, R., Muster, B., Nandakumar, R., Palano, A., Pappagallo, M., Patel, M., Petrella, A., Pietrzyk, B., Plackett, R., Raven, G., Redford, S., dos Reis, A. C., Rosello, M., Rouvinet, J., Santinelli, R., Schleich, S., Schmelling, M., Sciascia, B., Serrano, J., Shapkin, M., Shears, T., Shires, A., Solomin, A., Soomro, F., Spaan, B., Spradlin, P., Stahl, S., Szumlak, T., T’Jampens, S., Thomas, E., Torr, N., Ukleja, A., Vecchi, S., Velthuis, J. J., Webber, A. D., Wiedner, D., Xing, Z.
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Language:English
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Summary:A bstract The production of B ± mesons in proton-proton collisions at $ \sqrt {s} $ = 7 TeV is studied using 35 pb −1 of data collected by the LHCb detector. The B ± mesons are reconstructed exclusively in the B ± → J/ψK ± mode, with J/ψ → μ + μ − . The differential production cross-section is measured as a function of the B ± transverse momentum in the fiducial region 0 < p T < 40 GeV / c and with rapidity 2 . 0 < y < 4 . 5. The total cross-section, summing up B + and B − , is measured to be σ ( pp → B ± X, 0 < p T < 40 GeV / c , 2 . 0 < y < 4 . 5) = 41 . 4 ± 1 . 5 (stat . ) ± 3 . 1 (syst . ) μb .
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP04(2012)093