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First observation of B¯s0→Ds2*+Xμ-v¯ decays

Aaij, R. et al. (2011) First observation of B¯s0→Ds2*+Xμ-v¯ decays. Physics Letters B, 698 (1). pp. 14-20. ISSN 0370-2693 (doi:10.1016/j.physletb.2011.02.039)

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Publisher's URL: http://dx.doi.org/10.1016/j.physletb.2011.02.039

Abstract

Using data collected with the LHCb detector in proton–proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays B¯s0→Ds*Xμ-v¯ and B¯s0→D0K+Xμ-v¯ are detected. Two structures are observed in the D0K+ mass spectrum at masses consistent with the known Ds1+(2536) and Ds2*(2573)+ mesons. The measured branching fractions relative to the total B¯s0 semileptonic rate are B(B¯s0→Ds2*+Xμ-v¯)/B(B¯s0→D0→Xμ-v¯)=(3.3±1.0±0.4)%, B(B¯s0→Ds1*+Xμ-v¯)/B(B¯s0→D0→Xμ-v¯)= (5.4±1.2±0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the Ds2*+ state in B¯s0 decays; we also measure its mass and width.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Alexander, Mr Michael and Sail, Mr Paul and Rodrigues, Dr Eduardo and Parkes, Dr Christopher and Borghi, Dr Silvia and Plackett, Dr Richard and Eklund, Dr Lars
Authors: Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Agari, M., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amhis, Y., Amoraal, J., Anderson, J., Antunes Nobrega, R., Appleby, R.B., Aquines Gutierrez, O., Arefyev, A., Arrabito, L., Artuso, M., Aslanides, E., Auriemma, G., Bachmann, S., Bailey, D.S., Balagura, V., Baldini, W., Barlow, R.J., Barschel, C., Barsuk, S., Basiladze, S., Bates, A., Bauer, C., Bauer, T., Bay, A., Bediaga, I., Belous, K., Belyaev, I., Benayoun, M., Bencivenni, G., Bernet, R., Bettler, M.-O., van Beuzekom, M., Bifani, S., Bizzeti, A., Bjørnstad, P.M., Blake, T., Blanc, F., Blanks, C., Blouw, J., Blusk, S., Bobrov, A., Bocci, V., Bochin, B., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bos, E., Bowcock, T.J.V., Bozzi, C., Brambach, T., van den Brand, J., Bressieux, J., Brisbane, S., Britsch, M., Britton, T., Brook, N.H., Brown, H., Büchler-Germann, A., Bursche, A., Buytaert, J., Cadeddu, S., Caicedo Carvajal, J.M., Callot, O., Calvi, M., Calvo Gomez, M., Camboni, A., Cameron, W., Camilleri, L., Campana, P., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carson, L., Carvalho Akiba, K., Casse, G., Cattaneo, M., Charles, M., Charpentier, P., Cheng, J., Chiapolini, N., Chlopik, A., Christiansen, J., Ciambrone, P., Cid Vidal, X., Clark, P.J., Clarke, P.E.L., Clemencic, M., Cliff, H.V., Closier, J., Coca, C., Coco, V., Cogan, J., Collins, P., Constantin, F., Conti, G., Contu, A., Coombes, M., Corti, G., Cowan, G.A., Currie, R., DʼAlmagne, B., DʼAmbrosio, C., DʼAntone, I., Da Silva, W., Dané, E., David, P., De Bonis, I., De Capua, S., De Cian, M., De Lorenzi, F., De Miranda, J.M., De Paula, L., De Simone, P., Decamp, D., Degaudenzi, H., Deissenroth, M., Del Buono, L., Deplano, C., Deschamps, O., Dettori, F., Dickens, J., Dijkstra, H., Dima, M., Donleavy, S., Dornan, P., Dossett, D., Dovbnya, A., Dupertuis, F., Dzhelyadin, R., Eames, C., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisele, F., Eisenhardt, S., Eklund, L., dʼEnterria, D.G., Esperante Pereira, D., Estève, L., Fanchini, E., Färber, C., Fardell, G., Farinelli, C., Farry, S., Fave, V., Fernandez Albor, V., Ferro-Luzzi, M., Filippov, S., Fitzpatrick, C., Flegel, W., Fontanelli, F., Forty, R., Frank, M., Frei, C., Frosini, M., Fungueirino Pazos, J.L., Furcas, S., Gallas Torreira, A., Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garnier, J.-C., Garofoli, J., Garrido, L., Gaspar, C., Gassner, J., Gauvin, N., Gavillet, P., Gersabeck, M., Gershon, T., Ghez, P., Gibson, V., Gligorov, V.V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gong, G., Gong, H., Gordon, H., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L.A., Graugés, E., Graziani, G., Grecu, A., Gregson, S., Gui, B., Gushchin, E., Guz, Y., Guzik, Z., Gys, T., Haefeli, G., Haines, S.C., Hampson, T., Hansmann-Menzemer, S., Harji, R., Harnew, N., Harrison, P.F., He, J., Hennessy, K., Henrard, P., Hernando Morata, J.A., van Herwijnen, E., Hicheur, A., Hicks, E., Hilke, H.J., Hofmann, W., Holubyev, K., Hopchev, P., Hulsbergen, W., Hunt, P., Huse, T., Huston, R.S., Hutchcroft, D., Iakovenko, V., Iglesias Escudero, C., Ilgner, C., Ilten, P., Imong, J., Jacobsson, R., Jahjah Hussein, M., Jans, E., Jansen, F., Jaton, P., Jean-Marie, B., Jing, F., John, M., Johnson, D., Jones, C.R., Jost, B., Kapusta, F., Karbach, T.M., Kashchuk, A., Keaveney, J., Kerzel, U., Ketel, T., Keune, A., Khanji, B., Kim, Y.M., Knecht, M., Koblitz, S., Konoplyannikov, A., Koppenburg, P., Korolev, M., Kozlinskiy, A., Kravchuk, L., Krocker, G., Krokovny, P., Kruse, F., Kruzelecki, K., Kucharczyk, M., Kukulak, S., Kumar, R., Kvaratskheliya, T., La Thi, V.N., Lacarrere, D., Lafferty, G., Lai, A., Lambert, R.W., Lanfranchi, G., Langenbruch, C., Latham, T., Le Gac, R., van Leerdam, J., Lees, J.-P., Lefèvre, R., Leflat, A., Lefrançois, J., Lehner, F., Leroy, O., Lesiak, T., Li, L., Li, Y.Y., Li Gioi, L., Libby, J., Lieng, M., Liles, M., Lindner, R., Linn, C., Liu, B., Liu, G., Löchner, S., Lopes, J.H., Lopez Asamar, E., Lopez-March, N., Luisier, J., Mʼcharek, B., Machefert, F., Machikhiliyan, I.V., Maciuc, F., Maev, O., Magnin, J., Maier, A., Malde, S., Mamunur, R.M.D., Manca, G., Mancinelli, G., Mangiafave, N., Marconi, U., Märki, R., Marks, J., Martellotti, G., Martens, A., Martin, L., Martin Sanchez, A., Martinez Santos, D., Massafferri, A., Mathe, Z., Matteuzzi, C., Matveev, M., Matveev, V., Maurice, E., Maynard, B., Mazurov, A., McGregor, G., McNulty, R., Mclean, C., Meissner, M., Merk, M., Merkel, J., Merkin, M., Messi, R., Miglioranzi, S., Milanes, D.A., Minard, M.-N., Monteil, S., Moran, D., Morawski, P., Morris, J.V., Moscicki, J., Mountain, R., Mous, I., Muheim, F., Müller, K., Muresan, R., Murtas, F., Muryn, B., Musy, M., Mylroie-Smith, J., Naik, P., Nakada, T., Nandakumar, R., Nardulli, J., Nawrot, A., Nedos, M., Needham, M., Neufeld, N., Neustroev, P., Nicol, M., Nies, S., Niess, V., Nikitin, N., Oblakowska-Mucha, A., Obraztsov, V., Oggero, S., Okhrimenko, O., Oldeman, R., Orlandea, M., Ostankov, A., Pal, B., Palacios, J., Palutan, M., Panman, J., Papanestis, A., Pappagallo, M., Parkes, C., Parkinson, C.J., Passaleva, G., Patel, G.D., Patel, M., Paterson, S.K., Patrick, G.N., Patrignani, C., Pauna, E., Pauna (Chiojdeanu), C., Pavel (Nicorescu), C., Pazos Alvarez, A., Pellegrino, A., Penso, G., Pepe Altarelli, M., Perazzini, S., Perego, D.L., Perez Trigo, E., Pérez-Calero Yzquierdo, A., Perret, P., Pessina, G., Petrella, A., Petrolini, A., Pie Valls, B., Pietrzyk, B., Pinci, D., Plackett, R., Playfer, S., Plo Casasus, M., Polok, G., Poluektov, A., Polycarpo, E., Popov, D., Popovici, B., Potterat, C., Powell, A., Pozzi, S., du Pree, T., Pugatch, V., Puig Navarro, A., Qian, W., Rademacker, J.H., Rakotomiaramanana, B., Raniuk, I., Raven, G., Redford, S., Reece, W., dos Reis, A.C., Ricciardi, S., Rinnert, K., Roa Romero, D.A., Robbe, P., Rodrigues, E., Rodrigues, F., Rodriguez Cobo, C., Rodriguez Perez, P., Rogers, G.J., Romanovsky, V., Rouvinet, J., Ruf, T., Ruiz, H., Rusinov, V., Sabatino, G., Saborido Silva, J.J., Sagidova, N., Sail, P., Saitta, B., Salzmann, C., Sambade Varela, A., Sannino, M., Santacesaria, R., Santinelli, R., Santovetti, E., Sapunov, M., Saputi, A., Sarti, A., Satriano, C., Satta, A., Savrie, M., Savrina, D., Schaack, P., Schiller, M., Schleich, S., Schmelling, M., Schmidt, B., Schneider, O., Schneider, T., Schopper, A., Schune, M.-H., Schwemmer, R., Sciubba, A., Seco, M., Semennikov, A., Senderowska, K., Serra, N., Serrano, J., Shao, B., Shapkin, M., Shapoval, I., Shatalov, P., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, O., Shevchenko, V., Shires, A., Simioni, E., Skottowe, H.P., Skwarnicki, T., Smale, N., Smith, A., Smith, A.C., Sobczak, K., Soler, F.J.P., Solomin, A., Somogy, P., Soomro, F., Souza De Paula, B., Spaan, B., Sparkes, A., Spiridenkov, E., Spradlin, P., Srednicki, A., Stagni, F., Steiner, S., Steinkamp, O., Stenyakin, O., Stoica, S., Stone, S., Storaci, B., Straumann, U., Styles, N., Szczekowski, M., Szczypka, P., Szumlak, T., TʼJampens, S., Talanov, V., Tarkovskiy, E., Teodorescu, E., Terrier, H., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Topp-Joergensen, S., Tran, M.T., Traynor, S., Trunk, U., Tsaregorodtsev, A., Tuning, N., Ukleja, A., Urquijo, P., Uwer, U., Vagnoni, V., Valenti, G., Vazquez Gomez, R., Vazquez Regueiro, P., Vecchi, S., Velthuis, J.J., Veltri, M., Vervink, K., Viaud, B., Videau, I., Vilasis-Cardona, X., Visniakov, J., Vollhardt, A., Voong, D., Vorobyev, A., Vorobyev, A., Voss, H., Wacker, K., Wandernoth, S., Wang, J., Ward, D.R., Webber, A.D., Websdale, D., Whitehead, M., Wiedner, D., Wiggers, L., Wilkinson, G., Williams, M.P., Williams, M., Wilson, F.F., Wishahi, J., Witek, M., Witzeling, W., Wotton, S.A., Wyllie, K., Xie, Y., Xing, F., Yang, Z., Ybeles Smit, G., Young, R., Yushchenko, O., Zavertyaev, M., Zeng, M., Zhang, L., Zhang, W.C., Zhang, Y., Zhelezov, A., Zhong, L., and Zverev, E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
ISSN (Online):1873-2445
Published Online:18 February 2011

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
395963Experimental Particle PhysicsAnthony DoyleScience & Technologies Facilities Council (STFC)ST/H001077/1Physics and Astronomy