LHCb CollaborationAaij, R.Adeva, B.Adinolfi, M.Affolder, A.Ajaltouni, Z.Albrecht, J.Alessio, F.Alexander, M.Ali, S.Alkhazov, G.Alvarez Cartelle, P.Amato, S.Amerio, S.Amhis, Y.Anderlini, L.Anderson, J.Andreassen, R.Andreotti, M.Andrews, J. E.Appleby, R. B.Gutierrez, O. AquinesArchilli, 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.Bauer, T.Bay, A.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.Brook, N. H.Brown, H.Bursche, A.Busetto, G.Buytaert, J.Cadeddu, S.Calabrese, R.Callot, O.Calvi, M.Calvo Gomez, M.Camboni, A.Campana, P.Perez, D. CamporaCaponio, F.Carbone, A.Carboni, G.Cardinale, R.Cardini, A.Carranza-Mejia, H.Carson, L.Akiba, K. CarvalhoCasse, G.Cassina, L.Garcia, L. CastilloCattaneo, M.Cauet, C.Cenci, R.Charles, M.Charpentier, P.Cheung, S. -F.Chiapolini, N.Chrzaszcz, M.Ciba, K.Vidal, X. CidCiezarek, G.Clarke, P. E. L.Clemencic, M.Cliff, H. V.Closier, J.Coca, C.Coco, V.Cogan, J.Cogneras, E.Collins, P.Comerma-Montells, A.Contu, A.Cook, A.Coombes, M.Coquereau, S.Corti, G.Counts, I.Couturier, B.Cowan, G. A.Craik, D. C.Torres, M. CruzCunliffe, S.Currie, R.D'Ambrosio, C.Dalseno, J.David, P.David, P. N. Y.Davis, A.De Bonis, I.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.Dorosz, P.Dosil Suarez, A.Dossett, D.Dovbnya, A.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.Esen, S.Falabella, A.Faerber, C.Farinelli, C.Farry, S.Ferguson, D.Fernandez Albor, V.Ferreira Rodrigues, F.Ferro-Luzzi, M.Filippov, S.Fiore, M.Fiorini, M.Fitzpatrick, C.Fontana, M.Fontanelli, F.Forty, R.Francisco, O.Frank, M.Frei, C.Frosini, M.Fu, J.Furfaro, E.Gallas Torreira, A.Galli, D.Gambetta, S.Gandelman, M.Gandini, P.Gao, Y.Garofoli, J.Tico, J. GarraGarrido, L.Gaspar, C.Gauld, R.Gavardi, L.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.Gandara, M. GrabalosaGraciani Diaz, R.Cardoso, L. A. GranadoGrauges, 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.Hafkenscheid, T. W.Haines, S. C.Hall, S.Hamilton, B.Hampson, T.Hansmann-Menzemer, S.Harnew, N.Harnew, S. T.Harrison, J.Hartmann, T.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.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.Kelsey, M.Kenyon, I. R.Ketel, T.Khanji, B.Khurewathanakul, C.Klaver, S.Kochebina, O.Komarov, I.Koopman, R. F.Koppenburg, P.Korolev, M.Kozlinskiy, A.Kravchuk, L.Kreplin, K.Kreps, M.Krocker, G.Krokovny, P.Kruse, F.Kucharczyk, M.Kudryavtsev, V.Kurek, K.Kvaratskheliya, T.La Thi, V. N.Lacarrere, D.Lafferty, G.Lai, A.Lambert, D.Lambert, R. W.Lanciotti, E.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.Luppi, E.Lupton, O.Machefert, F.Machikhiliyan, I. V.Maciuc, F.Maev, O.Malde, S.Manca, G.Mancinelli, G.Manzali, M.Maratas, J.Marconi, U.Marin Benito, C.Marino, P.Maerki, R.Marks, J.Martellotti, G.Martens, A.Sanchez, A. MartinMartinelli, M.Santos, D. MartinezMartinez Vidal, F.Tostes, D. MartinsMassafferri, 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.Rodriguez, J. MolinaMonteil, S.Moran, D.Morandin, M.Morawski, P.Morda, A.Morello, M. J.Mountain, R.Muheim, F.Mueller, K.Muresan, R.Muryn, B.Muster, B.Naik, P.Nakada, T.Nandakumar, R.Nasteva, I.Needham, M.Neri, N.Neubert, S.Neufeld, N.Nguyen, A. D.Nguyen, T. D.Nguyen-Mau, C.Nicol, M.Niess, V.Niet, R.Nikitin, N.Nikodem, T.Novoselov, A.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.Pappalardo, L.Parkes, C.Parkinson, C. J.Passaleva, G.Patel, G. D.Patel, M.Patrignani, C.Pavel-Nicorescu, C.Pazos Alvarez, A.Pearce, A.Pellegrino, A.Altarelli, M. PepePerazzini, S.Perez Trigo, E.Perret, P.Perrin-Terrin, M.Pescatore, L.Pesen, E.Pessina, G.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.Powell, A.Prisciandaro, J.Pritchard, A.Prouve, C.Pugatch, V.Navarro, A. PuigPunzi, 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, A.Rinnert, K.Rives Molina, V.Romero, D. A. RoaRobbe, P.Roberts, D. A.Rodrigues, A. B.Rodrigues, E.Rodriguez Perez, P.Roiser, S.Romanovsky, V.Romero Vidal, A.Rotondo, M.Rouvinet, J.Ruf, T.Ruffini, F.Ruiz, H.Ruiz Valls, P.Sabatino, G.Saborido Silva, J. J.Sagidova, N.Sail, P.Saitta, B.Guimaraes, V. SalustinoSanmartin Sedes, B.Santacesaria, R.Santamarina Rios, C.Santovetti, E.Sapunov, M.Sarti, A.Satriano, C.Satta, A.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.Senderowska, K.Sepp, I.Serra, N.Serrano, J.Seyfert, P.Shapkin, M.Shapoval, I.Shcheglov, Y.Shears, T.Shekhtman, L.Shevchenko, O.Shevchenko, V.Shires, A.Coutinho, R. SilvaSimi, G.Sirendi, M.Skidmore, N.Skwarnicki, T.Smith, N. A.Smith, E.Smith, E.Smith, J.Smith, M.Snoek, H.Sokoloff, M. D.Soler, F. J. P.Soomro, F.Souza, D.De Paula, B. SouzaSpaan, B.Sparkes, A.Spinella, F.Spradlin, P.Stagni, F.Stahl, S.Steinkamp, 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, S.Syropoulos, V.Szczekowski, M.Szczypka, P.Szilard, D.Szumlak, T.T'Jampens, S.Teklishyn, M.Tellarini, G.Teodorescu, E.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. UbedaUkleja, A.Ustyuzhanin, A.Uwer, U.Vagnoni, V.Valenti, G.Vallier, A.Gomez, R. VazquezVazquez Regueiro, P.Vazquez Sierra, C.Vecchi, S.Velthuis, J. J.Veltri, M.Veneziano, G.Vesterinen, M.Viaud, B.Vieira, D.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.Wandernoth, S.Wang, J.Ward, D. R.Watson, N. K.Webber, A. D.Websdale, D.Whitehead, M.Wicht, J.Wiechczynski, 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.Yang, Z.Yuan, X.Yushchenko, O.Zangoli, M.Zavertyaev, M.Zhang, F.Zhang, L.Zhang, W. C.Zhang, Y.Zhelezov, A.Zhokhov, A.Zhong, L.Zvyagin, A.2014-08-292014-08-292014-08-29201410.1103/PhysRevLett.112.161801https://infoscience.epfl.ch/handle/20.500.14299/106580WOS:000338513000004This Letter presents a study of the flavor-changing neutral current radiative B-+/- -> K-+/-pi(-/+)pi(+/-)gamma decays performed using data collected in proton-proton collisions with the LHCb detector at 7 and 8 TeV center-of-mass energies. In this sample, corresponding to an integrated luminosity of 3 fb(-1), nearly 14 000 signal events are reconstructed and selected, containing all possible intermediate resonances with a K-+/-pi(-/+)pi(+/-) final state in the [1.1, 1.9] GeV/c(2) mass range. The distribution of the angle of the photon direction with respect to the plane defined by the final-state hadrons in their rest frame is studied in intervals of K-+/-pi(-/+)pi(+/-) mass and the asymmetry between the number of signal events found on each side of the plane is obtained. The first direct observation of the photon polarization in the b -> s(gamma) transition is reported with a significance of 5.2 sigma.text::journal::journal article::research article