Production of associated Y and open charm hadrons in pp collisions at s=7 and 8 TeV via double parton scattering

• Published in: The journal of high energy physics 2016-07, Vol.2016 (7)
• Main Authors: Ali, S., Appleby, R. B., Aquines Gutierrez, O., Baalouch, M., Bachmann, S., Back, J. J., Batozskaya, V., Bencivenni, G., Benton, J., Bertolin, A., Bifani, S., Billoir, P., Bocci, V., Brook, N. H., Bursche, A., Carvalho Akiba, K., Charles, M., Cid Vidal, X., Cliff, H. V., Closier, J., Collazuol, G., Cook, A., Coombes, M., Cruz Torres, M., Dean, C.-T., Dziurda, A., Egede, U., El Rifai, I., Fontanelli, F., Gallorini, S., Gandini, P., Garrido, L., Gauld, R., Gavardi, L., Gerick, D., Gershon, T., Ghez, Ph, Gligorov, V. V., Gomes, A., Gotti, C., Graverini, E., Greening, E., Gushchin, E., Hamilton, B., Harnew, N., He, J., Heß, M., Hicheur, A., Humair, T., Hynds, D., Khurewathanakul, C., Kozeiha, M., Kreplin, K., Kreps, M., Kruse, F., Lambert, D., Lanfranchi, G., Liles, M., Luppi, E., Lupton, O., Manca, G., Mazurov, A., McCarthy, J., McNab, A., Meadows, B., Michielin, E, Molina Rodriguez, J., Müller, K., Nikodem, T., Oblakowska-Mucha, A., Otalora Goicochea, J. M., Owen, P., Oyanguren, A., Pappenheimer, C., Patrignani, C., Perazzini, S., Pritchard, A., Rama, M., Sanmartin Sedes, B., Schwemmer, R., Seyfert, P., Shcheglov, Y., Shears, T., Shekhtman, L., Siddi, B. G., Sokoloff, M. D., Spradlin, P., Stagni, F., Stoica, S., Straumann, U., Swientek, S., Szumlak, T., van Tilburg, J., Tran, M. T., Valenti, G., Velthuis, J. J., Vollhardt, A., Wilkinson, G., Williams, T., Yushchenko, O.
• Format: Article
• Language: English
• Subjects: Classical and Quantum Gravitation; Elementary Particles; Hadron interactions; Interaccions d'hadrons; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Regular Article - Experimental Physics; Relativity Theory; String Theory
• ISSN: 1126-6708; 1029-8479
• DOI: 10.1007/JHEP07(2016)052

A bstract Associated production of bottomonia and open charm hadrons in pp collisions at s = 7 and 8 TeV is observed using data corresponding to an integrated luminosity of 3 fb −1 accumulated with the LHCb detector. The observation of five combinations, Y(1S)D 0 , Y(2S)D 0 , Y(1S)D + , Y(2S)D + and Y(1S)D s + , is reported. Production crosssections are measured for Y(1S)D 0 and Y(1S)D + pairs in the forward region. The measured cross-sections and the differential distributions indicate the dominance of double parton scattering as the main production mechanism.