Measurement of the B± production cross-section in pp collisions at = 7 TeV

• Published in: The journal of high energy physics Vol. 2012; no. 4
• Main Authors: Affolder, A., Gutierrez, O. Aquines, Auriemma, G., Barter, W., Bencivenni, G., Bernet, R., Blanc, F., Blusk, S., Bonivento, W., Brambach, T., Carboni, G., Cardini, A., Chiapolini, N., Clemencic, M., Comerma-Montells, A., De Bonis, I., De Capua, S., De Cian, M., De Miranda, J. M., Deckenhoff, M., Dettori, F., Dickens, J., Bonal, F. Domingo, Dzhelyadin, R., Egede, U., Eidelman, S., Eisenhardt, S., Frosini, M., Gandelman, M., Gaspar, C., Gordon, H., Cardoso, L. A. Granado, Graziani, G., Guz, Y., Gys, T., Harrison, J., Harrison, P. F., Heijne, V., Morata, J. A. Hernando, Hulsbergen, W., Keaveney, J., Kim, Y. M., Kozlinskiy, A., Krokovny, P., Kruse, F., La Thi, V. N., Lanciotti, E., Li, L., Lopes, J. H., Machefert, F., Martellotti, G., Maynard, B., McGregor, G., Merk, M., Muryn, B., Needham, M., Nguyen, A. D., Oblakowska-Mucha, A., Owen, P., Palacios, J., Palutan, M., Patel, G. D., Yzquierdo, A. Pérez-Calero, Pietrzyk, B., Casasus, M. Plo, Polok, G., Pugatch, V., Navarro, A. Puig, Ricciardi, S., Rinnert, K., Perez, P. Rodriguez, Rosello, M., Silva, J. J. Saborido, Salzmann, C., Sarti, A., Satriano, C., Schlupp, M., Schmidt, B., Sepp, I., Shears, T., Soler, F. J. P., Sparkes, A., Stahl, S., Steinkamp, O., Tobin, M., Garcia, M. Ubeda, Uwer, U., Vagnoni, V., Veltri, M., Wang, J., Watson, N. K., Whitehead, M., Wiedner, D., Williams, M. P., Wyllie, K., Xing, F., Yang, Z., Young, R., Zavertyaev, M., Zhang, F.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 19.04.2012; Springer Nature B.V
• Subjects: Classical and Quantum Gravitation; Cross-sections; Elementary Particles; High energy physics; Mesons; Particle collisions; Physics; Physics and Astronomy; Protons; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Relativity Theory; String Theory; Transverse momentum; Hadron-Hadron Scattering
• ISSN: 1029-8479
• DOI: 10.1007/JHEP04(2012)093

A bstract The production of B ± mesons in proton-proton collisions at = 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 .