Precision measurement of the B → Xs γ photon energy spectrum, branching fraction, and direct CP asymmetry A(CP)((B → X(s+d)γ)

Lees, J P; Poireau, V; Tisserand, V; Garra Tico, J; Grauges, E; Palano, A; Eigen, G; Stugu, B; Brown, D N; Kerth, L T; Kolomensky, Yu G; Lynch, G; Koch, H; Schroeder, T; Asgeirsson, D J; Hearty, C; Mattison, T S; McKenna, J A; R Y, So; Khan, A; Blinov, V E; Buzykaev, A R; Druzhinin, V P; Golubev, V B; Kravchenko, E A; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Yushkov, A N; Bondioli, M; Kirkby, D; Lankford, A J; Mandelkern, M; Atmacan, H; Gary, J W; Liu, F; Long, O; Vitug, G M; Campagnari, C; Hong, T M; Kovalskyi, D; Richman, J D; West, C A; Eisner, A M; Kroseberg, J; Lockman, W S; Martinez, A J; Schumm, B A; Seiden, A; Winstrom, L; Chao, D S; Cheng, C H; Echenard, B; Flood, K T; Hitlin, D G; Ongmongkolkul, P; Porter, F C; Rakitin, A Y; Andreassen, R; Huard, Z; Meadows, B T; Sokoloff, M D; Sun, L; Bloom, P C; Ford, W T; Gaz, A; Nauenberg, U; Smith, J G; Wagner, S R; Ayad, R; Toki, W H; Spaan, B; Schubert, K R; Schwierz, R; Bernard, D; Verderi, M; Clark, P J; Playfer, S; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Munerato, M; Piemontese, L; Santoro, V; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Peruzzi, I M; Piccolo, M; Rama, M; Zallo, A; Contri, R; Guido, E; Lo Vetere, M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Bhuyan, B; Prasad, V; Lee, C L; Morii, M; Edwards, A J; Adametz, A; Uwer, U; Lacker, H M; Lueck, T; Dauncey, P D; Mallik, U; Chen, C; Cochran, J; Meyer, W T; Prell, S; Rubin, A E; Gritsan, A V; Guo, Z J; Arnaud, N; Davier, M; Derkach, D; Grosdidier, G; Le Diberder, F; Lutz, A M; Malaescu, B; Roudeau, P; Schune, M H; Stocchi, A; Wormser, G; Lange, D J; Wright, D M; Chavez, C A; Coleman, J P; Fry, J R; Gabathuler, E; Hutchcroft, D E; Payne, D J; Touramanis, C; Bevan, A J; Di Lodovico, F; Sacco, R; Sigamani, M; Cowan, G; Brown, D N; Davis, C L; Denig, A G; Fritsch, M; Gradl, W; Griessinger, K; Hafner, A; Prencipe, E; Barlow, R J; Jackson, G; Lafferty, G D; Behn, E; Cenci, R; Hamilton, B; Jawahery, A; Roberts, D A; Dallapiccola, C; Cowan, R; Dujmic, D; Sciolla, G; Cheaib, R; Lindemann, D; Patel, P M; Robertson, S H; Biassoni, P; Neri, N; Palombo, F; Stracka, S; Cremaldi, L; Godang, R; Kroeger, R; Sonnek, P; Summers, D J; Nguyen, X; Simard, M; Taras, P; De Nardo, G; Monorchio, D; Onorato, G; Sciacca, C; Martinelli, M; Raven, G; Jessop, C P; Knoepfel, K; Losecco, J M; Wang, W F; Honscheid, K; Kass, R; Brau, J; Frey, R; Lu, M; Sinev, N B; Strom, D; Torrence, E; Feltresi, E; Gagliardi, N; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben-Haim, E; Bomben, M; Bonneaud, G R; Briand, H; Calderini, G; Chauveau, J; Hamon, O; Leruste, Ph; Marchiori, G; Ocariz, J; Sitt, S; Biasini, M; Manoni, E; Pacetti, S; Rossi, A; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, M; Casarosa, G; Cervelli, A; Forti, F; Giorgi, M A; Lusiani, A; Oberhof, B; Paoloni, E; Perez, A; Rizzo, G; Walsh, J J; Lopes Pegna, D; Olsen, J; Smith, A J S; Telnov, A V; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Li Gioi, L; Mazzoni, M A; Piredda, G; Bünger, C; Grünberg, O; Hartmann, T; Leddig, T; Schröder, H; Voss, C; Waldi, R; Adye, T; Olaiya, E O; Wilson, F F; Emery, S; Hamel de Monchenault, G; Vasseur, G; Yèche, Ch; Aston, D; Bard, D J; Bartoldus, R; Bechtle, P; Benitez, J F; Cartaro, C; Convery, M R; Dorfan, J; Dubois-Felsmann, G P; Dunwoodie, W; Ebert, M; Field, R C; Franco Sevilla, M; Fulsom, B G; Gabareen, A M; Graham, M T; Grenier, P; Hast, C; Innes, W R; Kelsey, M H; Kim, P; Kocian, M L; Leith, D W G S; Lewis, P; Lindquist, B; Luitz, S; Luth, V; Lynch, H L; Macfarlane, D B; Muller, D R; Neal, H; Nelson, S; Perl, M; Pulliam, T; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Snyder, A; Su, D; Sullivan, M K; Va'vra, J; Wagner, A P; Wisniewski, W J; Wittgen, M; Wright, D H; Wulsin, H W; Young, C C; Ziegler, V; Park, W; Purohit, M V; White, R M; Wilson, J R; Randle-Conde, A; Sekula, S J; Bellis, M; Burchat, P R; Miyashita, T S; Alam, M S; Ernst, J A; Gorodeisky, R; Guttman, N; Peimer, D R; Soffer, A; Lund, P; Spanier, S M; Ritchie, J L; Ruland, A M; Schwitters, R F; Wray, B C; Izen, J M; Lou, X C; Bianchi, F; Gamba, D; Zambito, S; Lanceri, L; Vitale, L; Martinez-Vidal, F; Oyanguren, A; Ahmed, H; Albert, J; Banerjee, Sw; Bernlochner, F U; Choi, H H F; King, G J; Kowalewski, R; Lewczuk, M J; Nugent, I M; Roney, J M; Sobie, R J; Tasneem, N; Gershon, T J; Harrison, P F; Latham, T E; Puccio, E M T; Band, H R; Dasu, S; Pan, Y; Prepost, R; S L, Wu

doi:10.1103/PhysRevLett.109.191801

The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B → X(s)γ plus B → X(d)γ, is studied using a data sample of (382.8 ± 4.2) × 10(6)Υ(4S) → BB decays collected by the BABAR experiment at SLAC. The spectrum is used to extract the branching fraction B(B → X(s)γ) = (3.21 ± 0.33) × 10(-4) for E(γ) >1.8 GeV and the direct CP asymmetry A(CP) (B → X(s+d)γ) = 0.057 ± 0.063. The effects of detector resolution and Doppler smearing are unfolded to measure the photon energy spectrum in the B meson rest frame.

Autori interni:	Lees, J P Poireau, V Tisserand, V Garra Tico, J Grauges, E Palano, A Eigen, G Stugu, B Brown, D N Kerth, L T Kolomensky, Yu G Lynch, G Koch, H Schroeder, T Asgeirsson, D J Hearty, C Mattison, T S McKenna, J A So, R Y Khan, A Blinov, V E Buzykaev, A R Druzhinin, V P Golubev, V B Kravchenko, E A Onuchin, A P Serednyakov, S I Skovpen, Yu I Solodov, E P Todyshev, K Yu Yushkov, A N Bondioli, M Kirkby, D Lankford, A J Mandelkern, M Atmacan, H Gary, J W Liu, F Long, O Vitug, G M Campagnari, C Hong, T M Kovalskyi, D Richman, J D West, C A Eisner, A M Kroseberg, J Lockman, W S Martinez, A J Schumm, B A Seiden, A Winstrom, L Chao, D S Cheng, C H Echenard, B Flood, K T Hitlin, D G Ongmongkolkul, P Porter, F C Rakitin, A Y Andreassen, R Huard, Z Meadows, B T Sokoloff, M D Sun, L Bloom, P C Ford, W T Gaz, A Nauenberg, U Smith, J G Wagner, S R Ayad, R Toki, W H Spaan, B Schubert, K R Schwierz, R Bernard, D Verderi, M Clark, P J Playfer, S Bettoni, D Bozzi, C Calabrese, R Cibinetto, G Fioravanti, E Garzia, I Luppi, E Munerato, M Piemontese, L Santoro, V Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Patteri, P Peruzzi, I M Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, M R Passaggio, S Patrignani, C Robutti, E Bhuyan, B Prasad, V Lee, C L Morii, M Edwards, A J Adametz, A Uwer, U Lacker, H M LUECK, THOMAS Dauncey, P D Mallik, U Chen, C Cochran, J Meyer, W T Prell, S Rubin, A E Gritsan, A V Guo, Z J Arnaud, N Davier, M Derkach, D Grosdidier, G Le Diberder, F Lutz, A M Malaescu, B Roudeau, P Schune, M H Stocchi, A Wormser, G Lange, D J Wright, D M Chavez, C A Coleman, J P Fry, J R Gabathuler, E Hutchcroft, D E Payne, D J Touramanis, C Bevan, A J Di Lodovico, F Sacco, R Sigamani, M Cowan, G Brown, D N Davis, C L Denig, A G Fritsch, M Gradl, W Griessinger, K Hafner, A Prencipe, E Barlow, R J Jackson, G Lafferty, G D Behn, E Cenci, R Hamilton, B Jawahery, A Roberts, D A Dallapiccola, C Cowan, R Dujmic, D Sciolla, G Cheaib, R Lindemann, D Patel, P M Robertson, S H Biassoni, P Neri, N Palombo, F STRACKA, SIMONE Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, D J Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Martinelli, M Raven, G Jessop, C P Knoepfel, K Losecco, J M Wang, W F Honscheid, K Kass, R Brau, J Frey, R Lu, M Sinev, N B Strom, D Torrence, E Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simi, G Simonetto, F Stroili, R Akar, S Ben-Haim, E Bomben, M Bonneaud, G R Briand, H Calderini, G Chauveau, J Hamon, O Leruste, Ph Marchiori, G Ocariz, J Sitt, S Biasini, M Manoni, E Pacetti, S Rossi, A Angelini, C BATIGNANI, GIOVANNI BETTARINI, STEFANO Carpinelli, M CASAROSA, GIULIA Cervelli, A FORTI, FRANCESCO GIORGI, MARCELLO Lusiani, A Oberhof, B PAOLONI, EUGENIO Perez, A RIZZO, GIULIANA Walsh, J J Lopes Pegna, D Olsen, J Smith, A J S Telnov, A V Anulli, F Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Li Gioi, L Mazzoni, M A Piredda, G Bünger, C Grünberg, O Hartmann, T Leddig, T Schröder, H Voss, C Waldi, R Adye, T Olaiya, E O Wilson, F F Emery, S Hamel de Monchenault, G Vasseur, G Yèche, Ch Aston, D Bard, D J Bartoldus, R Bechtle, P Benitez, J F Cartaro, C Convery, M R Dorfan, J Dubois-Felsmann, G P Dunwoodie, W Ebert, M Field, R C Franco Sevilla, M Fulsom, B G Gabareen, A M Graham, M T Grenier, P Hast, C Innes, W R Kelsey, M H Kim, P Kocian, M L Leith, D W G S Lewis, P Lindquist, B Luitz, S Luth, V Lynch, H L Macfarlane, D B Muller, D R Neal, H Nelson, S Perl, M Pulliam, T Ratcliff, B N Roodman, A Salnikov, A A Schindler, R H Snyder, A Su, D Sullivan, M K Va'vra, J Wagner, A P Wisniewski, W J Wittgen, M Wright, D H Wulsin, H W Young, C C Ziegler, V Park, W Purohit, M V White, R M Wilson, J R Randle-Conde, A Sekula, S J Bellis, M Burchat, P R Miyashita, T S Alam, M S Ernst, J A Gorodeisky, R Guttman, N Peimer, D R Soffer, A Lund, P Spanier, S M Ritchie, J L Ruland, A M Schwitters, R F Wray, B C Izen, J M Lou, X C Bianchi, F Gamba, D Zambito, S Lanceri, L Vitale, L Martinez-Vidal, F Oyanguren, A Ahmed, H Albert, J Banerjee, Sw Bernlochner, F U Choi, H H F King, G J Kowalewski, R Lewczuk, M J Nugent, I M Roney, J M Sobie, R J Tasneem, N Gershon, T J Harrison, P F Latham, T E Puccio, E M T Band, H R Dasu, S Pan, Y Prepost, R Wu, S L mostra contributor esterni nascondi contributor esterni
Autori:	Lees, J P; Poireau, V; Tisserand, V; Garra Tico, J; Grauges, E; Palano, A; Eigen, G; Stugu, B; Brown, D N; Kerth, L T; Kolomensky, Yu G; Lynch, G; Koch, H; Schroeder, T; Asgeirsson, D J; Hearty, C; Mattison, T S; Mckenna, J A; So, R Y; Khan, A; Blinov, V E; Buzykaev, A R; Druzhinin, V P; Golubev, V B; Kravchenko, E A; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Yushkov, A N; Bondioli, M; Kirkby, D; Lankford, A J; Mandelkern, M; Atmacan, H; Gary, J W; Liu, F; Long, O; Vitug, G M; Campagnari, C; Hong, T M; Kovalskyi, D; Richman, J D; West, C A; Eisner, A M; Kroseberg, J; Lockman, W S; Martinez, A J; Schumm, B A; Seiden, A; Winstrom, L; Chao, D S; Cheng, C H; Echenard, B; Flood, K T; Hitlin, D G; Ongmongkolkul, P; Porter, F C; Rakitin, A Y; Andreassen, R; Huard, Z; Meadows, B T; Sokoloff, M D; Sun, L; Bloom, P C; Ford, W T; Gaz, A; Nauenberg, U; Smith, J G; Wagner, S R; Ayad, R; Toki, W H; Spaan, B; Schubert, K R; Schwierz, R; Bernard, D; Verderi, M; Clark, P J; Playfer, S; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Munerato, M; Piemontese, L; Santoro, V; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Peruzzi, I M; Piccolo, M; Rama, M; Zallo, A; Contri, R; Guido, E; Lo Vetere, M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Bhuyan, B; Prasad, V; Lee, C L; Morii, M; Edwards, A J; Adametz, A; Uwer, U; Lacker, H M; Lueck, T; Dauncey, P D; Mallik, U; Chen, C; Cochran, J; Meyer, W T; Prell, S; Rubin, A E; Gritsan, A V; Guo, Z J; Arnaud, N; Davier, M; Derkach, D; Grosdidier, G; Le Diberder, F; Lutz, A M; Malaescu, B; Roudeau, P; Schune, M H; Stocchi, A; Wormser, G; Lange, D J; Wright, D M; Chavez, C A; Coleman, J P; Fry, J R; Gabathuler, E; Hutchcroft, D E; Payne, D J; Touramanis, C; Bevan, A J; Di Lodovico, F; Sacco, R; Sigamani, M; Cowan, G; Brown, D N; Davis, C L; Denig, A G; Fritsch, M; Gradl, W; Griessinger, K; Hafner, A; Prencipe, E; Barlow, R J; Jackson, G; Lafferty, G D; Behn, E; Cenci, R; Hamilton, B; Jawahery, A; Roberts, D A; Dallapiccola, C; Cowan, R; Dujmic, D; Sciolla, G; Cheaib, R; Lindemann, D; Patel, P M; Robertson, S H; Biassoni, P; Neri, N; Palombo, F; Stracka, S; Cremaldi, L; Godang, R; Kroeger, R; Sonnek, P; Summers, D J; Nguyen, X; Simard, M; Taras, P; De Nardo, G; Monorchio, D; Onorato, G; Sciacca, C; Martinelli, M; Raven, G; Jessop, C P; Knoepfel, K; Losecco, J M; Wang, W F; Honscheid, K; Kass, R; Brau, J; Frey, R; Lu, M; Sinev, N B; Strom, D; Torrence, E; Feltresi, E; Gagliardi, N; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben-Haim, E; Bomben, M; Bonneaud, G R; Briand, H; Calderini, G; Chauveau, J; Hamon, O; Leruste, Ph; Marchiori, G; Ocariz, J; Sitt, S; Biasini, M; Manoni, E; Pacetti, S; Rossi, A; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, M; Casarosa, G; Cervelli, A; Forti, F; Giorgi, M A; Lusiani, A; Oberhof, B; Paoloni, E; Perez, A; Rizzo, G; Walsh, J J; Lopes Pegna, D; Olsen, J; Smith, A J S; Telnov, A V; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Li Gioi, L; Mazzoni, M A; Piredda, G; Bünger, C; Grünberg, O; Hartmann, T; Leddig, T; Schröder, H; Voss, C; Waldi, R; Adye, T; Olaiya, E O; Wilson, F F; Emery, S; Hamel de Monchenault, G; Vasseur, G; Yèche, Ch; Aston, D; Bard, D J; Bartoldus, R; Bechtle, P; Benitez, J F; Cartaro, C; Convery, M R; Dorfan, J; Dubois-Felsmann, G P; Dunwoodie, W; Ebert, M; Field, R C; Franco Sevilla, M; Fulsom, B G; Gabareen, A M; Graham, M T; Grenier, P; Hast, C; Innes, W R; Kelsey, M H; Kim, P; Kocian, M L; Leith, D W G S; Lewis, P; Lindquist, B; Luitz, S; Luth, V; Lynch, H L; Macfarlane, D B; Muller, D R; Neal, H; Nelson, S; Perl, M; Pulliam, T; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Snyder, A; Su, D; Sullivan, M K; Va'Vra, J; Wagner, A P; Wisniewski, W J; Wittgen, M; Wright, D H; Wulsin, H W; Young, C C; Ziegler, V; Park, W; Purohit, M V; White, R M; Wilson, J R; Randle-Conde, A; Sekula, S J; Bellis, M; Burchat, P R; Miyashita, T S; Alam, M S; Ernst, J A; Gorodeisky, R; Guttman, N; Peimer, D R; Soffer, A; Lund, P; Spanier, S M; Ritchie, J L; Ruland, A M; Schwitters, R F; Wray, B C; Izen, J M; Lou, X C; Bianchi, F; Gamba, D; Zambito, S; Lanceri, L; Vitale, L; Martinez-Vidal, F; Oyanguren, A; Ahmed, H; Albert, J; Banerjee, Sw; Bernlochner, F U; Choi, H H F; King, G J; Kowalewski, R; Lewczuk, M J; Nugent, I M; Roney, J M; Sobie, R J; Tasneem, N; Gershon, T J; Harrison, P F; Latham, T E; Puccio, E M T; Band, H R; Dasu, S; Pan, Y; Prepost, R; Wu, S L
Titolo:	Precision measurement of the B → Xs γ photon energy spectrum, branching fraction, and direct CP asymmetry A(CP)((B → X(s+d)γ)
Anno del prodotto:	2012
Digital Object Identifier (DOI):	10.1103/PhysRevLett.109.191801
Appare nelle tipologie:	1.1 Articolo in rivista

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