Determination of the sign of the decay width difference in the Bs0 system

Aaij, R. et al. (2012) Determination of the sign of the decay width difference in the Bs0 system. Physical Review Letters, 108(24), Art. 241801. (doi: 10.1103/PhysRevLett.108.241801)

[img]
Preview
Text
80209.pdf - Published Version
Available under License Creative Commons Attribution.

342kB

Abstract

The interference between the K+K- S-wave and P-wave amplitudes in Bs0→J/ψK+K- decays with the K+K- pairs in the region around the ϕ(1020) resonance is used to determine the variation of the difference of the strong phase between these amplitudes as a function of K+K- invariant mass. Combined with the results from our CP asymmetry measurement in Bs0→J/ψϕ decays, we conclude that the Bs0 mass eigenstate that is almost CP=+1 is lighter and decays faster than the mass eigenstate that is almost CP=-1. This determines the sign of the decay width difference ΔΓs≡ΓL-ΓH to be positive. Our result also resolves the ambiguity in the past measurements of the CP violating phase ϕs to be close to zero rather than π. These conclusions are in agreement with the standard model expectations.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Pappagallo, Dr Marco and Alexander, Dr Michael and Soler, Professor Paul and MacRaighne, Dr Aaron and Borghi, Dr Silvia and Spradlin, Dr Patrick and Plackett, Dr Richard and Rodrigues, Dr Eduardo and Eklund, Professor Lars and Bates, Mrs Alison
Authors: Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., Anderson, J., Appleby, R. B., Aquines Gutierrez, O., Archilli, F., Arrabito, L., Artamonov, A., Artuso, M., Aslanides, E., Auriemma, G., Bachmann, S., Back, J. J., Bailey, D. S., Balagura, V., Baldini, W., Barlow, R. J., Barschel, C., Barsuk, S., Barter, W., Bates, A., Bauer, C., Bauer, T., Bay, A., Bediaga, I., Belogurov, S., Belous, K., Belyaev, I., Ben-Haim, E., Benayoun, M., Bencivenni, G., Benson, S., Benton, J., Bernet, R., Bettler, M.-O., van Beuzekom, M., Bien, A., Bifani, S., Bird, T., Bizzeti, A., Bjørnstad, P. M., Blake, T., Blanc, F., Blanks, C., Blouw, J., Blusk, S., Bobrov, A., Bocci, V., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bowcock, T. J. V., Bozzi, C., Brambach, T., van den Brand, J., Bressieux, J., Brett, D., Britsch, M., Britton, T., Brook, N. H., Brown, H., de Bruyn, K., Büchler-Germann, A., Burducea, I., Bursche, A., Buytaert, J., Cadeddu, S., Callot, O., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carson, L., Carvalho Akiba, K., Casse, G., Cattaneo, M., Cauet, C., Charles, M., Charpentier, P., Chiapolini, N., Ciba, K., Cid Vidal, X., Ciezarek, G., Clarke, P. E. L., Clemencic, M., Cliff, H. V., Closier, J., Coca, C., Coco, V., Cogan, J., Collins, P., Comerma-Montells, A., Constantin, F., Contu, A., Cook, A., Coombes, M., Corti, G., Couturier, B., Cowan, G. A., Currie, R., D’Ambrosio, C., David, P., David, P. N. Y., De Bonis, I., De Capua, S., De Cian, M., De Lorenzi, F., De Miranda, J. M., De Paula, L., De Simone, P., Decamp, D., Deckenhoff, M., Degaudenzi, H., Del Buono, L., Deplano, C., Derkach, D., Deschamps, O., Dettori, F., Dickens, J., Dijkstra, H., Diniz Batista, P., Domingo Bonal, F., Donleavy, S., Dordei, F., Dosil Suárez, A., Dossett, D., Dovbnya, A., Dupertuis, F., Dzhelyadin, R., Dziurda, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisele, F., Eisenhardt, S., Ekelhof, R., Eklund, L., Elsasser, C., Elsby, D., Esperante Pereira, D., Falabella, A., Fanchini, E., Färber, C., Fardell, G., Farinelli, C., Farry, S., Fave, V., Fernandez Albor, V., Ferro-Luzzi, M., Filippov, S., Fitzpatrick, C., Fontana, M., Fontanelli, F., Forty, R., Francisco, O., Frank, M., Frei, C., Frosini, M., Furcas, S., Gallas Torreira, A., Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garnier, J.-C., Garofoli, J., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gauld, R., Gauvin, N., Gersabeck, M., Gershon, T., Ghez, P., Gibson, V., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gordon, H., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L. A., Graugés, E., Graziani, G., Grecu, A., Greening, E., Gregson, S., Gui, B., Gushchin, E., Guz, Y., Gys, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S. C., Hampson, T., Hansmann-Menzemer, S., Harji, R., Harnew, N., Harrison, J., Harrison, P. F., Hartmann, T., He, J., Heijne, V., Hennessy, K., Henrard, P., Hernando Morata, J. A., van Herwijnen, E., Hicks, E., Holubyev, K., Hopchev, P., Hulsbergen, W., Hunt, P., Huse, T., Huston, R. S., Hutchcroft, D., Hynds, D., Iakovenko, V., Ilten, P., Imong, J., Jacobsson, R., Jaeger, A., Jahjah Hussein, M., Jans, E., Jansen, F., Jaton, P., Jean-Marie, B., Jing, F., John, M., Johnson, D., Jones, C. R., Jost, B., Kaballo, M., Kandybei, S., Karacson, M., Karbach, T. M., Keaveney, J., Kenyon, I. R., Kerzel, U., Ketel, T., Keune, A., Khanji, B., Kim, Y. M., Knecht, M., Koopman, R. F., Koppenburg, P., Korolev, M., Kozlinskiy, A., Kravchuk, L., Kreplin, K., Kreps, M., Krocker, G., Krokovny, P., Kruse, F., Kruzelecki, K., Kucharczyk, M., Kvaratskheliya, T., La Thi, V. N., Lacarrere, D., Lafferty, G., Lai, A., Lambert, D., Lambert, R. W., Lanciotti, E., Lanfranchi, G., Langenbruch, C., Latham, T., Lazzeroni, C., Le Gac, R., van Leerdam, J., Lees, J.-P., Lefèvre, R., Leflat, A., Lefrançois, J., Leroy, O., Lesiak, T., Li, L., Li Gioi, L., Lieng, M., Liles, M., Lindner, R., Linn, C., Liu, B., Liu, G., von Loeben, J., Lopes, J. H., Lopez Asamar, E., Lopez-March, N., Lu, H., Luisier, J., MacRaighne, A., Machefert, F., Machikhiliyan, I. V., Maciuc, F., Maev, O., Magnin, J., Malde, S., Mamunur, R. M. D., Manca, G., Mancinelli, G., Mangiafave, N., Marconi, U., Märki, R., Marks, J., Martellotti, G., Martens, A., Martin, L., Martín Sánchez, A., Martinez Santos, D., Massafferri, A., Mathe, Z., Matteuzzi, C., Matveev, M., Maurice, E., Maynard, B., Mazurov, A., McGregor, G., McNulty, R., Meissner, M., Merk, M., Merkel, J., Messi, R., Miglioranzi, S., Milanes, D. A., Minard, M.-N., Molina Rodriguez, J., Monteil, S., Moran, D., Morawski, P., Mountain, R., Mous, I., Muheim, F., Müller, K., Muresan, R., Muryn, B., Muster, B., Musy, M., Mylroie-Smith, J., Naik, P., Nakada, T., Nandakumar, R., Nasteva, I., Nedos, M., Needham, M., Neufeld, N., Nguyen, A. D., Nguyen-Mau, C., Nicol, M., Niess, V., Nikitin, N., Nomerotski, A., Novoselov, A., Oblakowska-Mucha, A., Obraztsov, V., Oggero, S., Ogilvy, S., Okhrimenko, O., Oldeman, R., Orlandea, M., Otalora Goicochea, J. M., Owen, P., Pal, K., Palacios, J., Palano, A., 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., 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., Perrin-Terrin, M., Pessina, G., Petrella, A., Petrolini, A., Phan, A., Picatoste Olloqui, E., Pie Valls, B., Pietrzyk, B., Pilař, T., Pinci, D., Plackett, R., Playfer, S., Plo Casasus, M., Polok, G., Poluektov, A., Polycarpo, E., Popov, D., Popovici, B., Potterat, C., Powell, A., Prisciandaro, J., Pugatch, V., Puig Navarro, A., Qian, W., Rademacker, J. H., Rakotomiaramanana, B., Rangel, M. S., Raniuk, I., Raven, G., Redford, S., Reid, M. M., dos Reis, A. C., Ricciardi, S., Richards, A., Rinnert, K., Roa Romero, D. A., Robbe, P., Rodrigues, E., Rodrigues, F., Rodriguez Perez, P., Rogers, G. J., Roiser, S., Romanovsky, V., Rosello, M., Rouvinet, J., Ruf, T., Ruiz, H., Sabatino, G., Saborido Silva, J. J., Sagidova, N., Sail, P., Saitta, B., Salzmann, C., Sannino, M., Santacesaria, R., Santamarina Rios, C., Santinelli, R., Santovetti, E., Sapunov, M., Sarti, A., Satriano, C., Satta, A., Savrie, M., Savrina, D., Schaack, P., Schiller, M., Schleich, S., Schlupp, M., Schmelling, M., Schmidt, B., Schneider, O., Schopper, A., Schune, M.-H., Schwemmer, R., Sciascia, B., Sciubba, A., Seco, M., Semennikov, A., Senderowska, K., Sepp, I., Serra, N., Serrano, J., Seyfert, P., Shapkin, M., Shapoval, I., Shatalov, P., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, O., Shevchenko, V., Shires, A., Silva Coutinho, R., Skwarnicki, T., Smith, N. A., Smith, E., Sobczak, K., Soler, F.J.P., Solomin, A., Soomro, F., Souza De Paula, B., Spaan, B., Sparkes, A., Spradlin, P., Stagni, F., Stahl, S., Steinkamp, O., Stoica, S., Stone, S., Storaci, B., Straticiuc, M., Straumann, U., Subbiah, V. K., Swientek, S., Szczekowski, M., Szczypka, P., Szumlak, T., T’Jampens, S., Teodorescu, E., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Topp-Joergensen, S., Torr, N., Tournefier, E., Tourneur, S., Tran, M. T., Tsaregorodtsev, A., Tuning, N., Ubeda Garcia, M., Ukleja, A., Urquijo, P., Uwer, U., Vagnoni, V., Valenti, G., Vazquez Gomez, R., Vazquez Regueiro, P., Vecchi, S., Velthuis, J. J., Veltri, M., Viaud, B., Videau, I., Vieira, D., Vilasis-Cardona, X., Visniakov, J., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Voss, H., Wandernoth, S., Wang, J., Ward, D. R., Watson, N. K., 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., Xing, Z., Yang, Z., Young, R., Yushchenko, O., Zangoli, M., Zavertyaev, M., Zhang, F., Zhang, L., Zhang, W. C., Zhang, Y., Zhelezov, A., Zhong, L., and Zvyagin, A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Copyright Holders:Copyright © 2012 CERN, for the benefit of the LHCb collaboration
First Published:First published in Physical Review Letters 108(24):241801
Publisher Policy:Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record