학술논문

Measurement of the ratio of branching fractions BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma)
Document Type
Working Paper
Author
LHCb CollaborationAaij, R.Beteta, C. AbellanAdeva, B.Adinolfi, M.Adrover, C.Affolder, A.Ajaltouni, Z.Albrecht, J.Alessio, F.Alexander, M.Alkhazov, G.Cartelle, P. AlvarezAlves Jr, A. A.Amato, S.Amhis, Y.Anderson, J.Appleby, R. B.Gutierrez, O. AquinesArchilli, 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, Th.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.Brand, J. van denBressieux, 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.Gomez, M. CalvoCamboni, A.Campana, P.Carbone, A.Carboni, G.Cardinale, R.Cardini, A.Carson, L.Akiba, K. CarvalhoCasse, G.Cattaneo, M.Cauet, Ch.Charles, M.Charpentier, Ph.Chiapolini, N.Ciba, K.Vidal, X. CidCiezarek, 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.Batista, P. DinizBonal, F. DomingoDonleavy, S.Dordei, F.Suárez, A. DosilDossett, 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, Ch.Elsby, D.Pereira, D. EsperanteFalabella, A.Fanchini, E.Färber, C.Fardell, G.Farinelli, C.Farry, S.Fave, V.Albor, V. FernandezFerro-Luzzi, M.Filippov, S.Fitzpatrick, C.Fontana, M.Fontanelli, F.Forty, R.Francisco, O.Frank, M.Frei, C.Frosini, M.Furcas, S.Torreira, A. GallasGalli, D.Gandelman, M.Gandini, P.Gao, Y.Garnier, J-C.Garofoli, J.Tico, J. GarraGarrido, L.Gascon, D.Gaspar, C.Gauld, R.Gauvin, N.Gersabeck, M.Gershon, T.Ghez, Ph.Gibson, V.Gligorov, V. V.Göbel, C.Golubkov, D.Golutvin, A.Gomes, A.Gordon, H.Gándara, M. GrabalosaDiaz, R. GracianiCardoso, L. A. GranadoGraugés, E.Graziani, G.Grecu, A.Greening, E.Gregson, S.Gui, B.Gushchin, E.Guz, Yu.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.Morata, J. A. Hernandovan 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.Hussein, M. JahjahJans, 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.Gac, R. Levan Leerdam, J.Lees, J. -P.Lefévre, R.Leflat, A.Lefrançois, J.Leroy, O.Lesiak, T.Li, L.Gioi, L. LiLieng, M.Liles, M.Lindner, R.Linn, C.Liu, B.Liu, G.von Loeben, J.Lopes, J. H.Asamar, E. LopezLopez-March, N.Lu, H.Luisier, J.Mac Raighne, 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.Sánchez, A. MartínSantos, D. MartinezMassafferri, 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.Rodriguez, J. MolinaMonteil, 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.Goicochea, J. M. OtaloraOwen, 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.Alvarez, A. PazosPellegrino, A.Penso, G.Altarelli, M. PepePerazzini, S.Perego, D. L.Trigo, E. PerezYzquierdo, A. Pérez-CaleroPerret, P.Perrin-Terrin, M.Pessina, G.Petrella, A.Petrolini, A.Phan, A.Olloqui, E. PicatosteValls, B. PiePietrzyk, B.Pilař, T.Pinci, D.Plackett, R.Playfer, S.Casasus, M. PloPolok, G.Poluektov, A.Polycarpo, E.Popov, D.Popovici, B.Potterat, C.Powell, A.Prisciandaro, J.Pugatch, V.Navarro, A. PuigQian, W.Rademacker, J. H.Rakotomiaramanana, B.Rangel, M. S.Raniuk, I.Raven, G.Redford, S.Reid, M. M.Reis, A. C. dosRicciardi, S.Richards, A.Rinnert, K.Romero, D. A. RoaRobbe, P.Rodrigues, E.Rodrigues, F.Perez, P. RodriguezRogers, G. J.Roiser, S.Romanovsky, V.Rosello, M.Rouvinet, J.Ruf, T.Ruiz, H.Sabatino, G.Silva, J. J. SaboridoSagidova, N.Sail, P.Saitta, B.Salzmann, C.Sannino, M.Santacesaria, R.Rios, C. SantamarinaSantinelli, 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.Coutinho, R. SilvaSkwarnicki, T.Smith, N. A.Smith, E.Sobczak, K.Soler, F. J. P.Solomin, A.Soomro, F.De Paula, B. SouzaSpaan, 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.Garcia, M. UbedaUkleja, A.Urquijo, P.Uwer, U.Vagnoni, V.Valenti, G.Gomez, R. VazquezRegueiro, P. VazquezVecchi, 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.Zvyagin, A.
Source
Phys. Rev. D 85 (2012) 112013
Subject
High Energy Physics - Experiment
Language
Abstract
The ratio of branching fractions of the radiative B decays B0 -> K*0 gamma and Bs0 -> phi gamma has been measured using 0.37 fb-1 of pp collisions at a centre of mass energy of sqrt(s) = 7 TeV, collected by the LHCb experiment. The value obtained is BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma) = 1.12 +/- 0.08 ^{+0.06}_{-0.04} ^{+0.09}_{-0.08}, where the first uncertainty is statistical, the second systematic and the third is associated to the ratio of fragmentation fractions fs/fd. Using the world average for BR(B0 -> K*0 gamma) = (4.33 +/- 0.15) x 10^{-5}, the branching fraction BR(Bs0 -> phi gamma) is measured to be (3.9 +/- 0.5) x 10^{-5}, which is the most precise measurement to date.
Comment: 15 pages, 1 figure, 2 tables