Collapse authors list.
Aaij, R, Beteta, C Abellan, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F et al (show 841 more authors) , Alexander, M, Albero, A Alfonso, Alkhazov, G, Cartelle, P Alvarez, Jr, Alves AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Archilli, F, Romeu, J Arnau, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Batozskaya, V, Batsukh, B, Battig, A, Battista, V, Bay, A, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belin, S, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjorn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Garcia, O Boente, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Boubdir, M, Bowcock, TJV 
ORCID: 0000-0002-3505-6915, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, Gonzalo, A Brossa, Brundu, D, Buchanan, E, Buonaura, A, Burr, C, Bursche, A, Butter, J, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Perez, DH Campora, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, P, Carvalho Akiba, K, Casse, G ORCID: 0000-0002-8516-237X, Cattaneo, M, Cavallero, G, Cenci, R, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chekalina, V, Chen, C, Chen, S, Chitic, S-G, Chobanova, V, Chrzaszcz, M, Chubykin, A, Ciambrone, P, Cid Vidal, X, Ciezarek, G, Cindolo, F, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Comerma-Montells, A, Contu, A, Coombs, G, Coquereau, S, Corti, G, Sobral, CM Costa, Couturier, B, Cowan, GA, Craik, DC, Crocombe, A, Cruz Torres, M, Currie, R, Da Silva, CL, Dall'Occo, E, Dalseno, J, D'Ambrosio, C, Danilina, A, d'Argent, P, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, P, de Vries, A, Dean, CT, Dean, W, Decamp, D, Del Buono, L, Delaney, B, Dembinski, H-P, Demmer, M, Dendek, A, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Canto, A, Di Nezza, P, Didenko, S, Dijkstra, H, Dordei, F, Dorigo, M, dos Reis, AC, Dosil Suarez, A, Douglas, L, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Durante, P, Durham, JM, Dutta, D, Dzhelyadin, R, Dziewiecki, M, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Ely, S, Ene, A, Escher, S, Esen, S, Evans, T, Falabella, A, Farber, C, Farley, N, Farry, S ORCID: 0000-0001-5119-9740, Fazzini, D, Feo, M, Declara, P Fernandez, Fernandez Prieto, A, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Sole, S Ferreres, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Lima, V Franco ORCID: 0000-0002-3761-209X, Frank, M, Frei, C, Fu, J, Funk, W, Gabriel, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garcia Martin, LM, Pardinas, J Garcia, Garcia Plana, B, Tico, J Garra, Garrido, L, Gascon, D, Gaspar, C, Gazzoni, G, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Ghez, Ph, Gibson, V, Girard, OG, Gironella Gironell, P, Giubega, L, Gizdov, K, Gligorov, VV, Gobel, C, Golubkov, D, Golutvin, A, Gomes, A, Gorelov, IV, Gotti, C, Govorkova, E, Grabowski, JP, Graciani Diaz, R, Granado Cardoso, LA, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, P, Grillo, L, Gruber, L, Gruberg Cazon, BR, Gu, C, Gushchin, E, Guth, A, Guz, Yu, Gys, T, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, SC, Hamilton, B, Han, Q, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Hecker, M, Heinicke, K, Heister, A, Hennessy, K ORCID: 0000-0002-1529-8087, Henry, L, Hess, M, Heuel, J, Hicheur, A, Charman, R Hidalgo, Hill, D, Hilton, M, Hopchev, PH, Hu, J, Hu, W, Huang, W, Huard, ZC, Hulsbergen, W, Humair, T, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Hynds, D, Ibis, P, Idzik, M, Ilten, P, Inglessi, A, Inyakin, A, Ivshin, K, Jacobsson, R, Jakobsen, S, Jalocha, J, Jans, E, Jashal, BK, Jawahery, A, Jiang, F, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Karodia, S, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, , Khurewathanakul, C, Kim, KE, Kirn, T, Kirsebom, VS, Klaver, S, Klimaszewski, K, Koliiev, S, Kolpin, M, Kopecna, R, Koppenburg, P, kostiuk, I, Kotriakhova, S, Kozeiha, M, Kravchuk, L, Kreps, M, Kress, F, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kunde, GJ, Kuonen, AK, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lancierini, D, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Lefevre, R, Leflat, A, Lemaitre, F, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, P-R, Li, X, Li, Y, Li, Z, Liang, X, Likhomanenko, T, Lindner, R, Lionetto, F, Lisovskyi, V, Liu, G, Liu, X, Loh, D, Loi, A, Longstaff, I, Lopes, JH, Loustau, G, Lovell, GH, Lucchesi, D, Lucio Martinez, M, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Maev, O, Maguire, K, Maisuzenko, D, Majewski, MW, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Benito, C Marin, Marinangeli, M, Marino, P, Marks, J, Marshall, PJ, Martellotti, G, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Mathe, Z, Matiunin, V, Matteuzzi, C, Mattioli, KR, Mauri, A, Maurice, E, Maurin, B, McCann, M, McNab, A, McNulty, R, Mead, JV ORCID: 0000-0003-0875-2533, Meadows, B, Meaux, C, Meinert, N, Melnychuk, D, Merk, M, Merli, A, Michielin, E, Milanes, DA, Millard, E, Minard, M-N, Minzoni, L, Mitzel, DS, Moedden, A, Mogini, A, Moise, RD, Mombaecher, T, Monroy, IA, Monteil, S, Morandin, M, Morello, G, Morello, MJ, Moron, J, Morris, AB, Mountain, R, Muheim, F, Mukherjee, M, Mulder, M, Muller, D, Muller, J, Muller, K, Muller, V, Murphy, CH, Murray, D, Naik, P, Nakada, T, Nandakumar, R, Nandi, A, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Newcombe, R, Nguyen, TD, Nguyen-Mau, C, Nieswand, S, Niet, R, Nikitin, N, Nolte, NS, Oblakowska-Mucha, A, Obraztsov, V, Ogilvy, S, O'Hanlon, DP, Oldeman, R, Onderwater, CJG, Osborn, JD, Ossowska, A, Otalora Goicochea, JM, Ovsiannikova, T, Owen, P, Oyanguren, A, Pais, PR, Pajero, T, Palano, A, Palutan, M, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, LL, Parker, W, Parkes, C, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Altarelli, M Pepe, Perazzini, S, Pereima, D, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pietrzyk, B, Pietrzyk, G, Pikies, M, Pili, M, Pinci, D, Pinzino, J, Pisani, F, Piucci, A, Placinta, V, Playfer, S, Plews, J, Plo Casasus, M, Polci, F, Lener, M Poli, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Pomery, GJ, Ponce, S, Popov, A, Popov, D, Poslavskii, S, Price, E, Prouve, C, Pugatch, V, Puig Navarro, A, Pullen, H, Punzi, G, Qian, W, Qin, J, Quagliani, R, Quintana, B, Raab, NV, Rachwal, B, Rademacker, JH, Rama, M, Ramos Pernas, M, Rangel, MS, Ratnikov, F, Raven, G, Ravonel Salzgeber, M, Reboud, M, Redi, F, Reichert, S, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Ricciardi, S, Richards, S, Rinnert, K, Robbe, P, Robert, A, Rodrigues, AB, Rodrigues, E, Rodriguez Lopez, JA, Roehrken, M, Roiser, S, Rollings, A, Romanovskiy, V, Romero Vidal, A, Roth, JD, Rotondo, M, Rudolph, MS, Ruf, T, Ruiz Vidal, J, Saborido Silva, JJ, Sagidova, N, Saitta, B, Salustino Guimaraes, V, Sanchez Gras, C, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Sarpis, G, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Schael, S, Schellenberg, M, Schiller, M, Schindler, H, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schreiner, HF, Schubiger, M, Schulte, S, Schune, MH, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepulveda, ES, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seuthe, A, Seyfert, P, Shapkin, M, Shears, T ORCID: 0000-0002-2653-1366, Shekhtman, L, Shevchenko, V, Shmanin, E, Siddi, BG, Silva Coutinho, R, Silva de Oliveira, L, Simi, G, Simone, S, Skiba, I, Skidmore, N, Skwarnicki, T, Slater, MW, Smeaton, JG, Smith, E, Smith, IT, Smith, M, Soares, M, Soares Lavra, L, Sokoloff, MD, Soler, FJP, Souza De Paula, B, Spaan, B, Spadaro Norella, E, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stefko, P, Stefkova, S, Steinkamp, O, Stemmle, S, Stenyakin, O, Stepanova, M, Stevens, H, Stocchi, A, Stone, S, Stracka, S, Stramaglia, ME, Straticiuc, M, Straumann, U, Strokov, S, Sun, J, Sun, L, Sun, Y, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Tang, Z, Tekampe, T, Tellarini, G, Teubert, F, Thomas, E, Tilley, MJ, Tisserand, V, T'Jampens, S, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Tou, DY, Tourinho Jadallah Aoude, R, Tournefier, E, Traill, M, Tran, MT, Trisovic, A, Tsaregorodtsev, A, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valat, S, Valenti, G, van Beuzekom, M, Van Hecke, H, van Herwijnen, E, Van Hulse, CB, van Tilburg, J, van Veghel, M, Gomez, R Vazquez, Regueiro, P Vazquez, Sierra, C Vazquez, Vecchi, S, Velthuis, JJ, Veltri, M, Venkateswaran, A, Vernet, M, Veronesi, M, Vesterinen, M, Barbosa, JV Viana, Vieira, D, Vieites Diaz, M, Viemann, H, Vilasis-Cardona, X, Vitkovskiy, A, Vitti, M, Volkov, V, Vollhardt, A, Bruch, D Vom, Voneki, B, Vorobyev, A, Vorobyev, V, Voropaev, N, Waldi, R, Walsh, J, Wang, J, Wang, M, Wang, Y, Wang, Z, Ward, DR, Wark, HM ORCID: 0000-0002-5177-9136, Watson, NK, Websdale, D, Weiden, A, Weisser, C, Whitehead, M, Wilkinson, G, Wilkinson, M, Williams, I, Williams, M, Williams, MRJ, Williams, T, Wilson, FF, Winn, M, Wislicki, W, Witek, M, Wormser, G, Wotton, SA, Wyllie, K, Xiao, D, Xie, Y, Xing, H, Xu, A, Xu, M, Xu, Q, Xu, Z, Xu, Z, Yang, Z, Yang, Z, Yao, Y, Yeomans, LE, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zarebski, KA, Zavertyaev, M, Zeng, M, Zhang, D, Zhang, L, Zhang, C, Zhang, Y, Zhelezov, A, Zheng, Y, Zhu, X, Zhukov, V, Zonneveld, JB, Zucchelli, S and Collaboration, LHCb
(2019)
Search for Lepton-Universality Violation in B + → K + ℓ + ℓ − Decays.
Physical Review Letters, 122 (19).
191801-.
Access the full-text of this item by clicking on the
Open Access link.
Abstract
A measurement of the ratio of branching fractions of the decays
B
+
→
K
+
μ
+
μ
−
and
B
+
→
K
+
e
+
e
−
is presented. The proton-proton collision data used correspond to an integrated luminosity of
5.0
fb
−
1
recorded with the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV. For the dilepton mass-squared range
1.1
<
q
2
<
6.0
GeV
2
/
c
4
the ratio of branching fractions is measured to be
R
K
=
0.84
6
+
0.060
−
0.054
+
0.016
−
0.014
, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of
R
K
to date and is compatible with the standard model at the level of 2.5 standard deviations.
Dimensions
Dimensions
