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Observation of double charm production involving open charm in pp collisions at $ \sqrt {s} = {7}\;{\text{TeV}}

A bstract The production of J/ψ mesons accompanied by open charm, and of pairs of open charm hadrons are observed in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 355 pb −1 collected with the LHCb detector. Model independent measurements of absolute cross-sectio...

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Bibliographic Details
Published in:The journal of high energy physics 2012-06, Vol.2012 (6), Article 141
Main Authors: Adrover, C., Affolder, A., Albrecht, J., Alkhazov, G., Alves, A. A., Anderson, J., Aquines Gutierrez, O., Back, J. J., Barschel, C., Barter, W., Bauer, C., Bauer, Th, Bay, A., Belogurov, S., Benayoun, M., Bettler, M.-O., Bifani, S., Bird, T., Blanc, F., Borgia, A., Brown, H., Büchler-Germann, A., Camboni, A., Carbone, A., Closier, J., Derkach, D., Dordei, F., Dosil Suárez, A., Eisele, F., Falabella, A., Färber, C., Fitzpatrick, C., Fontanelli, F., Gao, Y., Gaspar, C., Gauvin, N., Ghez, Ph, Gibson, V., Gordon, H., Grabalosa Gándara, M., Heijne, V., van Herwijnen, E., Hopchev, P., Jaton, P., Jones, C. R., Kandybei, S., Keune, A., La Thi, V. N., Lambert, D., Le Gac, R., van Leerdam, J., Leflat, A., Lopez Asamar, E., Malde, S., Manca, G., Martin, L., Martín Sánchez, A., Monteil, S., Morawski, P., Mous, I., Mylroie-Smith, J., Ogilvy, S., Orlandea, M., Otalora Goicochea, J. M., Pal, K., Passaleva, G., Pavel-Nicorescu, C., Pellegrino, A., Polycarpo, E., Powell, A., Pugatch, V., Puig Navarro, A., Romanovsky, V., Sabatino, G., Salzmann, C., Schaack, P., Schiller, M., Schwemmer, R., Senderowska, K., Souza De Paula, B., Stagni, F., Stoica, S., Tournefier, E., Tran, M. T., Tuning, N., Vagnoni, V., Voong, D., Vorobyev, A., Waldi, R., Wang, J., Whitehead, M., Wiggers, L., Williams, M. P., Witek, M., Wotton, S. A., Wyllie, K., Xing, F., Yang, Z., Young, R., Zhelezov, A.
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Language:English
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Summary:A bstract The production of J/ψ mesons accompanied by open charm, and of pairs of open charm hadrons are observed in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of 355 pb −1 collected with the LHCb detector. Model independent measurements of absolute cross-sections are given together with ratios to the measured J/ψ and open charm cross-sections. The properties of these events are studied and compared to theoretical predictions.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2012)141