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Test of lepton universality using B+ →k+l+l- decays

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Aaij, R.*;Adeva, B.;Adinolfi, M.;Affolder, A.;Ajaltouni, Z.;Akar, S.;Albrecht, J.;Alessio, F.;Alexander, M.;Ali, S.;Alkhazov, G.;Cartelle, P. Alvarez;Alves, A. A., Jr.;Amato, S.;Amerio, S.;Amhis, Y.;An, L.;Anderlini, L.;Anderson, J.;Andreassen, R.;Andreotti, M.;Andrews, J. E.;Appleby, R. B.;Gutierrez, O. Aquines;Archilli, F.;Artamonov, A.;Artuso, M.;Aslanides, E.;Auriemma, G.;Baalouch, M.;Bachmann, S.;Back, J. J.;Badalov, A.;Balagura, V.;Baldini, W.;Barlow, R. J.;Barschel, C.;Barsuk, S.;Barter, W.;Batozskaya, V.;Battista, V.;Bay, A.;Beaucourt, L.;Beddow, J.;Bedeschi, F.;Bediaga, I.;Belogurov, S.;Belous, K.;Belyaev, I.;Ben-Haim, E.;Bencivenni, G.;Benson, S.;Benton, J.;Berezhnoy, A.;Bernet, R.;Bettler, M. -O.;van Beuzekom, M.;Bien, A.;Bifani, S.;Bird, T.;Bizzeti, A.;Bjornstad, P. M.;Blake, T.;Blanc, F.;Blouw, J.;Blusk, S.;Bocci, V.;Bondar, A.;Bondar, N.;Bonivento, W.;Borghi, S.;Borgia, A.;Borsato, M.;Bowcock, T. J. V.;Bowen, E.;Bozzi, C.;Brambach, T.;van den Brand, J.;Bressieux, J.;Brett, D.;Britsch, M.;Britton, T.;Brodzicka, J.;Brook, N. H.;Brown, H.;Bursche, A.;Busetto, G.;Buytaert, J.;Cadeddu, S.;Calabrese, R.;Calvi, M.;Calvo Gomez, M.;Campana, P.;Perez, D. Campora;Carbone, A.;Carboni, G.;Cardinale, R.;Cardini, A.;Carson, L.;Carvalho Akiba, K.;Casse, G.;Cassina, L.;Garcia, L. Castillo;Cattaneo, M.;Cauet, C.;Cenci, R.;Charles, M.;Charpentier, P.;Chen, S.;Cheung, S. -F.;Chiapolini, N.;Chrzaszcz, M.;Ciba, K.;Vidal, X. Cid;Ciezarek, G.;Clarke, P. E. L.;Clemencic, M.;Cliff, H. V.;Closier, J.;Coco, V.;Cogan, J.;Cogneras, E.;Collins, P.;Comerma-Montells, A.;Contu, A.;Cook, A.;Coombes, M.;Coquereau, S.;Corti, G.;Corvo, M.;Counts, I.;Couturier, B.;Cowan, G. A.;Craik, D. C.;Cruz Torres, M.;Cunliffe, S.;Currie, R.;D'Ambrosio, C.;Dalseno, J.;David, P.;David, P. N. Y.;Davis, A.;De Bruyn, K.;De Capua, S.;De Cian, M.;De Miranda, J. M.;De Paula, L.;De Silva, W.;De Simone, P.;Decamp, D.;Deckenhoff, M.;Del Buono, L.;Deleage, N.;Derkach, D.;Deschamps, O.;Dettori, F.;Di Canto, A.;Dijkstra, H.;Donleavy, S.;Dordei, F.;Dorigo, M.;Dosil Suarez, A.;Dossett, D.;Dovbnya, A.;Dreimanis, K.;Dujany, G.;Dupertuis, F.;Durante, P.;Dzhelyadin, R.;Dziurda, A.;Dzyuba, A.;Easo, S.;Egede, U.;Egorychev, V.;Eidelman, S.;Eisenhardt, S.;Eitschberger, U.;Ekelhof, R.;Eklund, L.;El Rifai, I.;Elsasser, C.;Ely, S.;Esen, S.;Evans, H. -M.;Evans, T.;Falabella, A.;Faerber, C.;Farinelli, C.;Farley, N.;Farry, S.;Fay, R. F.;Ferguson, D.;Fernandez Albor, V.;Ferreira Rodrigues, F.;Ferro-Luzzi, M.;Filippov, S.;Fiore, M.;Fiorini, M.;Firlej, M.;Fitzpatrick, C.;Fiutowski, T.;Fontana, M.;Fontanelli, F.;Forty, R.;Francisco, O.;Frank, M.;Frei, C.;Frosini, M.;Fu, J.;Furfaro, E.;Gallas Torreira, A.;Galli, D.;Gallorini, S.;Gambetta, S.;Gandelman, M.;Gandini, P.;Gao, Y.;Garcia Pardinas, J.;Garofoli, J.;Tico, J. Garra;Garrido, L.;Gaspar, C.;Gauld, R.;Gavardi, L.;Gavrilov, G.;Gersabeck, E.;Gersabeck, M.;Gershon, T.;Ghez, P.;Gianelle, A.;Giani', S.;Gibson, V.;Giubega, L.;Gligorov, V. V.;Goebel, C.;Golubkov, D.;Golutvin, A.;Gomes, A.;Gordon, H.;Gotti, C.;Grabalosa Gandara, M.;Graciani Diaz, R.;Cardoso, L. A. Granado;Grauges, E.;Graziani, G.;Grecu, A.;Greening, E.;Gregson, S.;Griffith, P.;Grillo, L.;Gruenberg, O.;Gui, B.;Gushchin, E.;Guz, Y.;Gys, T.;Hadjivasiliou, C.;Haefeli, G.;Haen, C.;Haines, S. C.;Hall, S.;Hamilton, B.;Hampson, T.;Han, X.;Hansmann-Menzemer, S.;Harnew, N.;Harnew, S. T.;Harrison, J.;He, J.;Head, T.;Heijne, V.;Hennessy, K.;Henrard, P.;Henry, L.;Hernando Morata, J. A.;van Herwijnen, E.;Hess, M.;Hicheur, A.;Hill, D.;Hoballah, M.;Hombach, C.;Hulsbergen, W.;Hunt, P.;Hussain, N.;Hutchcroft, D.;Hynds, D.;Idzik, M.;Ilten, P.;Jacobsson, R.;Jaeger, A.;Jalocha, J.;Jans, E.;Jaton, P.;Jawahery, A.;Jing, F.;John, M.;Johnson, D.;Jones, C. R.;Joram, C.;Jost, B.;Jurik, N.;Kaballo, M.;Kandybei, S.;Kanso, W.;Karacson, M.;Karbach, T. M.;Karodia, S.;Kelsey, M.;Kenyon, I. R.;Ketel, T.;Khanji, B.;Khurewathanakul, C.;Klaver, S.;Klimaszewski, K.;Kochebina, O.;Kolpin, M.;Komarov, I.;Koopman, R. F.;Koppenburg, P.;Korolev, M.;Kozlinskiy, A.;Kravchuk, L.;Kreplin, K.;Kreps, M.;Krocker, G.;Krokovny, P.;Kruse, F.;Kucewicz, W.;Kucharczyk, M.;Kudryavtsev, V.;Kurek, K.;Kvaratskheliya, T.;La Thi, V. N.;Lacarrere, D.;Lafferty, G.;Lai, A.;Lambert, D.;Lambert, R. W.;Lanfranchi, G.;Langenbruch, C.;Langhans, B.;Latham, T.;Lazzeroni, C.;Le Gac, R.;van Leerdam, J.;Lees, J. -P.;Lefevre, R.;Leflat, A.;Lefrancois, J.;Leo, S.;Leroy, O.;Lesiak, T.;Leverington, B.;Li, Y.;Liles, M.;Lindner, R.;Linn, C.;Lionetto, F.;Liu, B.;Liu, G.;Lohn, S.;Longstaff, I.;Lopes, J. H.;Lopez-March, N.;Lowdon, P.;Lu, H.;Lucchesi, D.;Luo, H.;Lupato, A.;Luppi, E.;Lupton, O.;Machefert, F.;Machikhiliyan, I. V.;Maciuc, F.;Maev, O.;Malde, S.;Manca, G.;Mancinelli, G.;Maratas, J.;Marchand, J. F.;Marconi, U.;Marin Benito, C.;Marino, P.;Marki, R.;Marks, J.;Martellotti, G.;Martens, A.;Sanchez, A. Martin;Martinelli, M.;Santos, D. Martinez;Martinez Vidal, F.;Martins Tostes, D.;Massafferri, A.;Matev, R.;Mathe, Z.;Matteuzzi, C.;Mazurov, A.;McCann, M.;McCarthy, J.;Mcnab, A.;McNulty, R.;McSkelly, B.;Meadows, B.;Meier, F.;Meissner, M.;Merk, M.;Milanes, D. A.;Minard, M. -N.;Moggi, N.;Molina Rodriguez, J.;Monteil, S.;Morandin, M.;Morawski, P.;Morda, A.;Morello, M. J.;Moron, J.;Morris, A. -B.;Mountain, R.;Muheim, F.;Mueller, K.;Mussini, M.;Muster, B.;Naik, P.;Nakada, T.;Nandakumar, R.;Nasteva, I.;Needham, M.;Neri, N.;Neubert, S.;Neufeld, N.;Neuner, M.;Nguyen, A. D.;Nguyen, T. D.;Nguyen-Mau, C.;Nicol, M.;Niess, V.;Niet, R.;Nikitin, N.;Nikodem, T.;Novoselov, A.;O'Hanlon, D. P.;Oblakowska-Mucha, A.;Obraztsov, V.;Oggero, S.;Ogilvy, S.;Okhrimenko, O.;Oldeman, R.;Onderwater, G.;Orlandea, M.;Otalora Goicochea, J. M.;Owen, P.;Oyanguren, A.;Pal, B. K.;Palano, A.;Palombo, F.;Palutan, M.;Panman, J.;Papanestis, A.;Pappagallo, M.;Parkes, C.;Parkinson, C. J.;Passaleva, G.;Patel, G. D.;Patel, M.;Patrignani, C.;Pazos Alvarez, A.;Pearce, A.;Pellegrino, A.;Altarelli, M. Pepe;Perazzini, S.;Perez Trigo, E.;Perret, P.;Perrin-Terrin, M.;Pescatore, L.;Pesen, E.;Petridis, K.;Petrolini, A.;Picatoste Olloqui, E.;Pietrzyk, B.;Pilar, T.;Pinci, D.;Pistone, A.;Playfer, S.;Plo Casasus, M.;Polci, F.;Poluektov, A.;Polycarpo, E.;Popov, A.;Popov, D.;Popovici, B.;Potterat, C.;Price, E.;Prisciandaro, J.;Pritchard, A.;Prouve, C.;Pugatch, V.;Navarro, A. Puig;Punzi, G.;Qian, W.;Rachwal, B.;Rademacker, J. H.;Rakotomiaramanana, B.;Rama, M.;Rangel, M. S.;Raniuk, I.;Rauschmayr, N.;Raven, G.;Reichert, S.;Reid, M. M.;dos Reis, A. C.;Ricciardi, S.;Richards, S.;Rihl, M.;Rinnert, K.;Rives Molina, V.;Romero, D. A. Roa;Robbe, P.;Rodrigues, A. B.;Rodrigues, E.;Perez, P. Rodriguez;Roiser, S.;Romanovsky, V.;Romero Vidal, A.;Rotondo, M.;Rouvinet, J.;Ruf, T.;Ruffini, F.;Ruiz, H.;Valls, P. Ruiz;Saborido Silva, J. J.;Sagidova, N.;Sail, P.;Saitta, B.;Salustino Guimaraes, V.;Sanchez Mayordomo, C.;Sanmartin Sedes, B.;Santacesaria, R.;Santamarina Rios, C.;Santovetti, E.;Sarti, A.;Satriano, C.;Satta, A.;Saunders, D. M.;Savrie, M.;Savrina, D.;Schiller, M.;Schindler, H.;Schlupp, M.;Schmelling, M.;Schmidt, B.;Schneider, O.;Schopper, A.;Schune, M. -H.;Schwemmer, R.;Sciascia, B.;Sciubba, A.;Seco, M.;Semennikov, A.;Sepp, I.;Serra, N.;Serrano, J.;Sestini, L.;Seyfert, P.;Shapkin, M.;Shapoval, I.;Shcheglov, Y.;Shears, T.;Shekhtman, L.;Shevchenko, V.;Shires, A.;Coutinho, R. Silva;Simi, G.;Sirendi, M.;Skidmore, N.;Skwarnicki, T.;Smith, N. A.;Smith, E.;Smith, J.;Smith, M.;Snoek, H.;Sokoloff, M. D.;Soler, F. J. P.;Soomro, F.;Souza, D.;Souza De Paula, B.;Spaan, B.;Sparkes, A.;Spradlin, P.;Sridharan, S.;Stagni, F.;Stahl, M.;Stahl, S.;Steinkamp, O.;Stenyakin, O.;Stevenson, S.;Stoica, S.;Stone, S.;Storaci, B.;Stracka, S.;Straticiuc, M.;Straumann, U.;Stroili, R.;Subbiah, V. K.;Sun, L.;Sutcliffe, W.;Swientek, K.;Swientek, S.;Syropoulos, V.;Szczekowski, M.;Szczypka, P.;Szilard, D.;Szumlak, T.;T'Jampens, S.;Teklishyn, M.;Tellarini, G.;Teubert, F.;Thomas, C.;Thomas, E.;van Tilburg, J.;Tisserand, V.;Tobin, M.;Tolk, S.;Tomassetti, L.;Tonelli, D.;Topp-Joergensen, S.;Torr, N.;Tournefier, E.;Tourneur, S.;Tran, M. T.;Tresch, M.;Tsaregorodtsev, A.;Tsopelas, P.;Tuning, N.;Garcia, M. Ubeda;Ukleja, A.;Ustyuzhanin, A.;Uwer, U.;Vagnoni, V.;Valenti, G.;Vallier, A.;Gomez, R. Vazquez;Vazquez Regueiro, P.;Vzquez Sierra, C.;Vecchi, S.;Velthuis, J. J.;Veltri, M.;Veneziano, G.;Vesterinen, M.;Viaud, B.;Vieira, D.;Vieites Diaz, M.;Vilasis-Cardona, X.;Vollhardt, A.;Volyanskyy, D.;Voong, D.;Vorobyev, A.;Vorobyev, V.;Voss, C.;Voss, H.;de Vries, J. A.;Waldi, R.;Wallace, C.;Wallace, R.;Walsh, J.;Wandernoth, S.;Wang, J.;Ward, D. R.;Watson, N. K.;Websdale, D.;Whitehead, M.;Wicht, J.;Wiedner, D.;Wilkinson, G.;Williams, M. P.;Williams, M.;Wilson, F. F.;Wimberley, J.;Wishahi, J.;Wislicki, W.;Witek, M.;Wormser, G.;Wotton, S. A.;Wright, S.;Wu, S.;Wyllie, K.;Xie, Y.;Xing, Z.;Xu, Z.;Yang, Z.;Yuan, X.;Yushchenko, O.;Zangoli, M.;Zavertyaev, M.;Zhang, L.;Zhang, W. C.;Zhang, Y.;Zhelezov, A.;Zhokhov, A.;Zhong, L.;Zvyagin, A.
通讯作者:
Aaij, R.
作者机构:
[Jans, E.; Ketel, T.; van den Brand, J.; Tuning, N.; Tolk, S.; Pellegrino, A.; Syropoulos, V.; van Tilburg, J.; Santos, D. Martinez; Merk, M.; Ali, S.; Koppenburg, P.; Tsopelas, P.; Snoek, H.; de Vries, J. A.; Koopman, R. F.; Heijne, V.; van Leerdam, J.; Raven, G.; Aaij, R.; Lambert, R. W.; De Bruyn, K.; Oggero, S.; Kozlinskiy, A.; David, P. N. Y.; van Beuzekom, M.; Schiller, M.; Farinelli, C.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Hicheur, A.; Gomes, A.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Ferreira Rodrigues, F.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
[Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Carvalho Akiba, K.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Francisco, O.; De Paula, L.; Nasteva, I.; Gandelman, M.; Amato, S.; Rangel, M. S.; Salustino Guimaraes, V.; Vieira, D.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.
[Gao, Y.; Yang, Z.; Wu, S.; Li, Y.; Zhang, Y.; Yuan, X.; Zhong, L.; Jing, F.; An, L.; Lu, H.] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China.
[Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, P.; Qian, W.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; Lees, J. -P.; T'Jampens, S.; Minard, M. -N.; Artamonov, A.; Machefert, F.; Deleage, N.] Univ Savoie, CNRS, IN2P3, LAPP, Annecy Le Vieux, France.
通讯机构:
[Aaij, R.] N
Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
Physical Review Letters
ISSN:
0031-9007
年:
2014
卷:
113
期:
15
页码:
151601
基金类别:
CERN; national agency CAPES (Brazil); national agency CNPq (Brazil); national agency FAPERJ; national agency FINEP (Brazil); NSFC (China)National Natural Science Foundation of China (NSFC); CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); DFG (Germany)German Research Foundation (DFG); MPG (Germany)Max Planck Society; SFI (Ireland)Science Foundation Ireland; INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); FOM (Netherlands)FOM (The Netherlands)Netherlands Government; NWO (Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MinES (Russia); FANO (Russia); MinECo (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); NSF (USA)National Science Foundation (NSF); IN2P3 (France); KIT (Germany); SURF (Netherlands); PIC (Spain); GridPP (United Kingdom); EPLANET (European Union); Marie Sklodowska-Curie Actions (European Union); ERC (European Union)European Research Council (ERC); Conseil general de Haute-Savoie (France)Region Auvergne-Rhone-Alpes; Labex ENIGMASS (France); OCEVU (France); Region Auvergne (France)Region Auvergne-Rhone-Alpes; RFBR (Russia)Russian Foundation for Basic Research (RFBR); XuntaGal (Spain); Royal Society (United Kingdom)Royal Society of London; Royal Commission (United Kingdom); Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [ST/K003410/1, ST/K00137X/1, ST/K001418/1, ST/K001302/1, ST/L00352X/1, ST/K001604/1 DMUK, ST/K001310/1 ATLAS Upgrades, ST/K001604/1 LHCb, ST/K001604/1 SuperNEMO, ST/M001431/1, PP/E000355/1, ST/L003538/1, ST/K00073X/1, ST/M001474/1, ST/K001310/1, ST/K001604/1, ST/M000761/1, ST/K00140X/1 LHCb, ST/I000097/1, 1369397, ST/H00100X/1, 1415632, ST/K001361/1, 1364044, ST/K001310/1 LHCb, ST/L003392/1, ST/L001144/1, 1299204, LHCb Upgrades, ST/K003534/1, ST/K001361/1 ATLAS Upgrades, ST/K001604/1 CMS Upgrade, ST/K001604/1 MICE/UKNF, 1416165, ST/H00100X/2, ST/H001093/1, ST/K502236/1, ST/K001310/1 ATLAS, PP/E000347/1, ST/K001604/1 LHCb Upgrades, ST/J004332/1, ST/J004855/1, ST/K003534/1 GRIDPP, ST/H001093/2, ST/K001361/1 LHCb Upgrades, ST/K001361/1 ATLAS, ST/K001604/1 T2K, ST/H001026/1, GRIDPP, ST/H001069/2, LHCb, ST/I505572/1, ST/K001256/1, ST/K00140X/1, ST/H006737/1, ST/L001195/1, ST/F007094/1, ST/K001361/1 MINOS/MINOS+, ST/K001361/1 LHCb, ST/L003112/1, ST/K001604/1 GRIDPP, PP/E003095/1, ST/L006340/1, ST/K001310/1 LHCb Upgrades, 1225314, ST/L006146/1, ST/J005495/1, 1225304, ST/G005974/1, ST/H001026/2, ST/I003576/1, ST/K000705/1, 1096173, 1208164] Funding Source: researchfish; Direct For Mathematical & Physical ScienNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS) [1205805] Funding Source: National Science Foundation
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
A measurement of the ratio of the branching fractions of the B+→K+μ+μ- and B+→K+e+e- decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0fb-1, recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton invariant mass squared range 1<q2<6GeV2/c4 is measured to be 0.745-0.074+0.090(stat)±0.036(syst). This value is the most precise measurement of the ratio of branching fractions to date and is compatible with the standard model prediction within 2.6 standard deviations. ©Published by the American Physical Society.

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