We have performed a search for radiative b-hadron decays using events produced in p (p) over bar collisions at roots=1.8 TeV and collected by the Collider Detector at Fermilab. The decays we considered were (B) over bar (0)(d)-->(K) over bar*(0)(-->K(-)pi(+))gamma, (B) over bar (0)(s)-->phi(-->K+K-)gamma, Lambda(b)(0)-->Lambda(-->ppi(-))gamma, and their charge conjugates. Two independent methods to identify photons from such decays were employed. In the first method, the photon was detected in the electromagnetic calorimeter. In the second method, the photon was identified by an electron-positron pair produced through the external photon conversion before the tracking detector volume. By combining the two methods we obtain upper limits on the branching fractions for the (B) over bar (0)(d), (B) over bar (0)(s), and Lambda(b)(0) radiative decays which, at the 95% confidence level, are found to be B((B) over bar (0)(d)-->(K) over bar*(0)gamma)<1.4x10(-4), B((B) over bar (0)(s)-->phigamma)<1.6x10(-4), and B(&ULambda;(0)(b)-->Lambdagamma)<1.9x10(-3).

Search for radiative b-hadron decays in p(p)over-bar collisions at root s=1.8 TeV RID C-1693-2008 RID A-5169-2010 RID E-4473-2011 RID C-2406-2008

DELL'ORSO, MAURO;DONATI, SIMONE;PUNZI, GIOVANNI;
2002

Abstract

We have performed a search for radiative b-hadron decays using events produced in p (p) over bar collisions at roots=1.8 TeV and collected by the Collider Detector at Fermilab. The decays we considered were (B) over bar (0)(d)-->(K) over bar*(0)(-->K(-)pi(+))gamma, (B) over bar (0)(s)-->phi(-->K+K-)gamma, Lambda(b)(0)-->Lambda(-->ppi(-))gamma, and their charge conjugates. Two independent methods to identify photons from such decays were employed. In the first method, the photon was detected in the electromagnetic calorimeter. In the second method, the photon was identified by an electron-positron pair produced through the external photon conversion before the tracking detector volume. By combining the two methods we obtain upper limits on the branching fractions for the (B) over bar (0)(d), (B) over bar (0)(s), and Lambda(b)(0) radiative decays which, at the 95% confidence level, are found to be B((B) over bar (0)(d)-->(K) over bar*(0)gamma)<1.4x10(-4), B((B) over bar (0)(s)-->phigamma)<1.6x10(-4), and B(&ULambda;(0)(b)-->Lambdagamma)<1.9x10(-3).
Acosta, D; Affolder, T; Akimoto, H; Albrow, Mg; Ambrose, D; Amidei, D; Anikeev, K; Antos, J; Apollinari, G; Arisawa, T; Artikov, A; Asakawa, T; Ashmanskas, W; Azfar, F; Azzi Bacchetta, P; Bacchetta, N; Bachacou, H; Badgett, W; Bailey, S; de Barbaro, P; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Baroiant, S; Barone, M; Bauer, G; Bedeschi, F; Behari, S; Belforte, S; Bell, Wh; Bellettini, G; Bellinger, J; Benjamin, D; Bensinger, J; Beretvas, A; Berryhill, J; Bhatti, A; Binkley, M; Bisello, D; Bishai, M; Blair, Re; Blocker, C; Bloom, K; Blumenfeld, B; Blusk, Sr; Bocci, A; Bodek, A; Bolla, G; Bonushkin, Y; Bortoletto, D; Boudreau, J; Brandl, A; Bromberg, C; Brozovic, M; Brubaker, E; Bruner, N; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Byrum, Kl; Cabrera, S; Calafiura, P; Campbell, M; Carithers, W; Carlson, J; Carlsmith, D; Caskey, W; Castro, A; Cauz, D; Cerri, A; Chan, Aw; Chang, Ps; Chang, Pt; Chapman, J; Chen, C; Chen, Yc; Cheng, Mt; Chertok, M; Chiarelli, G; Chirikov Zorin, I; Chlachidze, G; Chlebana, F; Christofek, L; Chu, Ml; Chung, Jy; Chung, Wh; Chung, Ys; Ciobanu, Ci; Clark, Ag; Coca, M; Colijn, Ap; Connolly, A; Convery, M; Conway, J; Cordelli, M; Cranshaw, J; Culbertson, R; Dagenhart, D; D'Auria, S; Dejongh, F; Dell'Agnello, S; Dell'Orso, Mauro; Demers, S; Demortier, L; Deninno, M; Derwent, Pf; Devlin, T; Dittmann, Jr; Dominguez, A; Donati, Simone; D'Onofrio, M; Dorigo, T; Dunietz, I; Eddy, N; Einsweiler, K; Engels, E; Erbacher, R; Errede, D; Errede, S; Fan, Q; Fang, Hc; Farrington, S; Feild, Rg; Fernandez, Jp; Ferretti, C; Field, Rd; Fiori, I; Flaugher, B; Flores Castillo, Lr; Foster, Gw; Franklin, M; Freeman, J; Friedman, J; Fukui, Y; Furic, I; Galeotti, S; Gallas, A; Gallinaro, M; Gao, T; Garcia Sciveres, M; Garfinkel, Af; Gatti, P; Gay, C; Gerdes, Dw; Gerstein, E; Giannetti, P; Giolo, K; Giordani, M; Giromini, P; Glagolev, V; Glenzinski, D; Gold, M; Goldstein, J; Gomez, G; Goncharov, M; Gorelov, I; Goshaw, At; Gotra, Y; Goulianos, K; Green, C; Grim, G; Grosso Pilcher, C; Guenther, M; Guillian, G; da Costa, Jg; Haas, Rm; Haber, C; Hahn, Sr; Hall, C; Handa, T; Handler, R; Happacher, F; Hara, K; Hardman, Ad; Harris, Rm; Hartmann, F; Hatakeyama, K; Hauser, J; Heinrich, J; Heiss, A; Hennecke, M; Herndon, M; Hill, C; Hocker, A; Hoffman, Kd; Hollebeek, R; Holloway, L; Huffman, Bt; Hughes, R; Huston, J; Huth, J; Ikeda, H; Incandela, J; Introzzi, G; Ivanov, A; Iwai, J; Iwata, Y; James, E; Jones, M; Joshi, U; Kambara, H; Kamon, T; Kaneko, T; Unel, Mk; Karr, K; Kartal, S; Kasha, H; Kato, Y; Keaffaber, Ta; Kelley, K; Kelly, M; Kennedy, Rd; Kephart, R; Khazins, D; Kikuchi, T; Kilminster, B; Kim, Bj; Kim, Dh; Kim, Hs; Kim, Mj; Kim, Sb; Kim, Sh; Kim, Yk; Kirby, M; Kirk, M; Kirsch, L; Klimenko, S; Koehn, P; Kondo, K; Konigsberg, J; Kordas, K; Korn, A; Korytov, A; Kovacs, E; Kroll, J; Kruse, M; Krutelyov, V; Kuhlmann, Se; Kurino, K; Kuwabara, T; Laasanen, At; Lai, N; Lami, S; Lammel, S; Lancaster, J; Lancaster, M; Lander, R; Lath, A; Latino, G; Lecompte, T; Le, Y; Lee, K; Lee, Sw; Leone, S; Lewis, Jd; Lindgren, M; Liss, Tm; Liu, Jb; Liu, T; Liu, Yc; Litvintsev, Do; Lobban, O; Lockyer, Ns; Loken, J; Loreti, M; Lucchesi, D; Lukens, P; Lusin, S; Lyons, L; Lys, J; Madrak, R; Maeshima, K; Maksimovic, P; Malferrari, L; Mangano, M; Manca, G; Mariotti, M; Martignon, G; Martin, M; Martin, A; Martin, V; Matthews, Jaj; Mazzanti, P; Mcfarland, Ks; Mcintyre, P; Menguzzato, M; Menzione, A; Merkel, P; Mesropian, C; Meyer, A; Miao, T; Miller, R; Miller, Js; Minato, H; Miscetti, S; Mishina, M; Mitselmakher, G; Miyazaki, Y; Moggi, N; Moore, E; Moore, R; Morita, Y; Moulik, T; Mulhearn, M; Mukherjee, A; Muller, T; Munar, A; Murat, P; Murgia, S; Nachtman, J; Nagaslaev, V; Nahn, S; Nakada, H; Nakano, I; Napora, R; Nelson, C; Nelson, T; Neu, C; Neuberger, D; Newman Holmes, C; Ngan, Cyp; Nigmanov, T; Niu, H; Nodulman, L; Nomerotski, A; Oh, Sh; Oh, Yd; Ohmoto, T; Ohsugi, T; Oishi, R; Okusawa, T; Olsen, J; Orejudos, W; Pagliarone, C; Palmonari, F; Paoletti, R; Papadimitriou, V; Partos, D; Patrick, J; Pauletta, G; Paulini, M; Pauly, T; Paus, C; Pellett, D; Pescara, L; Phillips, Tj; Piacentino, G; Piedra, J; Pitts, Kt; Pompos, A; Pondrom, L; Pope, G; Pratt, T; Prokoshin, F; Proudfoot, J; Ptohos, F; Pukhov, O; Punzi, Giovanni; Rademacker, J; Ragan, K; Rakitine, A; Ratnikov, F; Reher, D; Reichold, A; Renton, P; Ribon, A; Riegler, W; Rimondi, F; Ristori, L; Riveline, M; Robertson, Wj; Rodrigo, T; Rolli, S; Rosenson, L; Roser, R; Rossin, R; Rott, C; Roy, A; Ruiz, A; Ryan, D; Safonov, A; St Denis, R; Sakumoto, Wk; Saltzberg, D; Sanchez, C; Sansoni, A; Santi, L; Sato, H; Savard, P; Savoy Navarro, A; Schlabach, P; Schmidt, Ee; Schmidt, Mp; Schmitt, M; Scodellaro, L; Scott, A; Scribano, A; Sedov, A; Seidel, S; Seiya, Y; Semenov, A; Semeria, F; Shah, T; Shapiro, Md; Shepard, Pf; Shibayama, T; Shimojima, M; Shochet, M; Sidoti, A; Siegrist, J; Sill, A; Sinervo, P; Singh, P; Slaughter, Aj; Sliwa, K; Snider, Fd; Solodsky, A; Spalding, J; Speer, T; Spezziga, M; Sphicas, P; Spinella, F; Spiropulu, M; Spiegel, L; Steele, J; Stefanini, A; Strologas, J; Strumia, F; Stuart, D; Sukhanov, A; Sumorok, K; Suzuki, T; Takano, T; Takashima, R; Takikawa, K; Tamburello, P; Tanaka, M; Tannenbaum, B; Tecchio, M; Tesarek, Rj; Teng, Pk; Terashi, K; Tether, S; Thompson, As; Thomson, E; Thurman Keup, R; Tipton, P; Tkaczyk, S; Toback, D; Tollefson, K; Tollestrup, A; Tonelli, D; Tonnesmann, M; Toyoda, H; Trischuk, W; de Troconiz, Jf; Tseng, J; Tsybychev, D; Turini, N; Ukegawa, F; Unverhau, T; Vaiciulis, T; Valls, J; Vataga, E; Vejcik, S; Velev, G; Veramendi, G; Vidal, R; Vila, I; Vilar, R; Volobouev, I; von der Mey, M; Vucinic, D; Wagner, Rg; Wagner, Rl; Wagner, W; Wallace, Nb; Wan, Z; Wang, C; Wang, Mj; Wang, Sm; Ward, B; Waschke, S; Watanabe, T; Waters, D; Watts, T; Weber, M; Wenzel, H; Wester, Wc; Whitehouse, B; Wicklund, Ab; Wicklund, E; Wilkes, T; Williams, Hh; Wilson, P; Winer, Bl; Winn, D; Wolbers, S; Wolinski, D; Wolinski, J; Wolinski, S; Wolter, M; Worm, S; Wu, X; Wyss, J; Yang, Uk; Yao, W; Yeh, Gp; Yeh, P; Yi, K; Yoh, J; Yosef, C; Yoshida, T; Yu, I; Yu, S; Yu, Z; Yun, Jc; Zanetti, A; Zetti, F; Zucchelli SDoser, M; Dunwoodie, W; Dusatko, Je; Ecklund, S; Fieguth, Th; Freytag, Dr; Glanzman, T; Godfrey, Gl; Haller, G; Hanushevsky, A; Harris, J; Hasan, A; Hee, C; Himel, T; Huffer, Me; Hung, T; Innes, Wr; Jessop, Cp; Kawahara, H; Keller, L; King, Me; Klaisner, L; Krebs, Hj; Langenegger, U; Langeveld, W; Leith, Dwgs; Louie, Sk; Luitz, S; Luth, V; Lynch, Hl; Mcdonald, J; Manzin, G; Marsiske, H; Mattison, T; Mcculloch, M; Mcdougald, M; Mcshurley, D; Menke, S; Messner, R; Metcalfe, S; Morii, M; Mount, R; Muller, Dr; Nelson, D; Nordby, M; O'Grady, Cp; Olavson, L; Olsen, J; O'Neill, Fg; Oxoby, G; Paolucci, P; Pavel, T; Perl, J; Pertsova, M; Petrak, S; Putallaz, G; Raines, Pe; Ratcliff, Bn; Reif, R; Robertson, Sh; Rochester, Ls; Roodman, A; Russel, Jj; Sapozhnikov, L; Saxton, Oh; Schietinger, T; Schindler, Rh; Schwiening, J; Sciolla, G; Seeman, Jt; Serbo, Vv; Shapiro, S; Skarpass, K; Snyder, A; Soderstrom, E; Soha, A; Spanier, Sm; Stahl, A; Stiles, P; Su, D; Sullivan, Mk; Talby, M; Tanaka, Ha; Va'Vra, J; Wagner, Sr; Wang, R; Weber, T; Weinstein, Ajr; White, Jl; Wienands, U; Wisniewski, Wj; Young, Cc; Yu, N; Burchat, Pr; Cheng, Ch; Kirkby, D; Meyer, Ti; Roat, C; Henderson, R; Khan, N; Berridge, S; Bugg, W; Cohn, H; Hart, E; Weidemann, Aw; Benninger, T; Izen, Jm; Kitayama, I; Lou, Xc; Turcotte, M; Bianchi, F; Bona, M; Daudo, F; Di Girolamo, B; Gamba, D; Grosso, P; Smol, A; Trapani, Pp; Zanin, D; Bosisio, L; Della Ricca, G; Lanceri, L; Pompili, A; Poropat, P; Prest, M; Rashevskaia, I; Vallazza, E; Vuagnin, G; Panvini, Rs; Brown, C; De Silva, A; Kowalewski, R; Pitman, D; Roney, Jm; Band, Hr; Charles, E; Dasu, S; Elmer, P; Johnson, Jr; Nielsen, J; Orejudos, W; Pan, Y; Prepost, R; Scott, Ij; Walsh, J; Wu, Sl; Yu, Z; Zobernig, H; Moore, Tb; Neal Hruner, N; Buckley Geer, E; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Byon Wagner, A; Byrum, Kl; Cabrera, S; Calafiura, P; Campbell, M; Carithers, W; Carlson, J; Carlsmith, D; Caskey, W; Castro, A; Cauz, D; Cerri, A; Chan, Aw; Chang, Ps; Chang, Pt; Chapman, J; Chen, C; Chen, Yc; Cheng, Mt; Chertok, M; Chiarelli, G; Chirikov Zorin, I; Chlachidze, G; Chlebana, F; Christofek, L; Chu, Ml; Chung, Jy; Chung, Ys; Ciobanu, Ci; Clark, Ag; Colijn, Ap; Connolly, A; Convery, Me; Conway, J; Cordelli, M; Cranshaw, J; Cropp, R; Culbertson, R; Dagenhart, D; D'Auria, S; Dejongh, F; Dell'Agnello, S; Dell'Orso, M; Demers, S; Demortier, L; Deninno, M; Derwent, Pf; Devlin, T; Dittmann, Jr; Dominguez, A; Donati, S; Done, J; D'Onofrio, M; Dorigo, T; Eddy, N; Einsweiler, K; Elias, Je; Engels, E; Erbacher, R; Errede, D; Errede, S; Fan, Q; Fang, Hc; Feild, Rg; Fernandez, Jp; Ferretti, C; Field, Rd; Fiori, I; Flaugher, B; Foster, Gw; Franklin, M; Freeman, J; Friedman, J; Fukui, Y; Furic, I; Galeotti, S; Gallas, A; Gallinaro, M; Gao, T; Garcia Sciveres, M; Garfinkel, Af; Gatti, P; Gay, C; Gerdes, Dw; Giannetti, P; Glagolev, V; Glenzinski, D; Gold, M; Goldstein, J; Gorelov, I; Goshaw, At; Gotra, Y; Goulianos, K; Green, C; Grim, G; Gris, P; Grosso Pilcher, C; Guenther, M; Guillian, G; da Costa, Jg; Haas, Rm; Haber, C; Hahn, Sr; Hall, C; Handa, T; Handler, R; Hao, W; Happacher, F; Hara, K; Hardman, Ad; Harris, Rm; Hartmann, F; Hatakeyama, K; Hauser, J; Heinrich, J; Heiss, A; Herndon, M; Hill, C; Hocker, A; Hoffman, Kd; Hollebeek, R; Holloway, L; Huffman, Bt; Hughes, R; Huston, J; Huth, J; Ikeda, H; Incandela, J; Introzzi, G; Ivanov, A; Iwai, J; Iwata, Y; James, E; Jones, M; Joshi, U; Kambara, H; Kamon, T; Kaneko, T; Karr, K; Kartal, S; Kasha, H; Kato, Y; Keaffaber, Ta; Kelley, K; Kelly, M; Khazins, D; Kikuchi, T; Kilminster, B; Kim, Bj; Kim, Dh; Kim, Hs; Kim, Mj; Kim, Sb; Kim, Sh; Kim, Yk; Kirby, M; Kirk, M; Kirsch, L; Klimenko, S; Koehn, P; Kondo, K; Konigsberg, J; Korn, A; Korytov, A; Kovacs, E; Kroll, J; Kruse, M; Kuhlmann, Se; Kurino, K; Kuwabara, T; Laasanen, At; Lai, N; Lami, S; Lammel, S; Lancaster, J; Lancaster, M; Lander, R; Lath, A; Latino, G; Lecompte, T; Lee, Am; Lee, K; Leone, S; Lewis, Jd; Lindgren, M; Liss, Tm; Liu, Jb; Liu, Yc; Litvintsev, Do; Lobban, O; Lockyer, Ns; Loken, J; Loreti, M; Lucchesi, D; Lukens, P; Lusin, S; Lyons, L; Lys, J; Madrak, R; Maeshima, K; Maksimovic, P; Malferrari, L; Mangano, M; Mariotti, M; Martignon, G; Martin, A; Matthews, Jaj; Mayer, J; Mazzanti, P; Mcfarland, Ks; Mcintyre, P; Menguzzato, M; Menzione, A; Merkel, P; Mesropian, C; Meyer, A; Miao, T; Miller, R; Miller, Js; Minato, H; Miscetti, S; Mishina, M; Mitselmakher, G; Miyazaki, Y; Moggi, N; Moore, C; Moore, E; Moore, R; Morita, Y; Moulik, T; Mulhearn, M; Mukherjee, A; Muller, T; Munar, A; Murat, P; Murgia, S; Nachtman, J; Nagaslaev, V; Nahn, S; Nakada, H; Nakano, I; Nelson, C; Nelson, T; Neu, C; Neuberger, D; Newman Holmes, C; Ngan, Cyp; Niu, H; Nodulman, L; Nomerotski, A; Oh, Sh; Oh, Yd; Ohmoto, T; Ohsugi, T; Oishi, R; Okusawa, T; Olsen, J; Orejudos, W; Pagliarone, C; Palmonari, F; Paoletti, R; Papadimitriou, V; Partos, D; Patrick, J; Pauletta, G; Paulini, M; Paus, C; Pellett, D; Pescara, L; Phillips, Tj; Piacentino, G; Pitts, Kt; Pompos, A; Pondrom, L; Pope, G; Popovic, M; Prokoshin, F; Proudfoot, J; Ptohos, F; Pukhov, O; Punzi, G; Rakitine, A; Ratnikov, F; Reher, D; Reichold, A; Renton, P; Ribon, A; Riegler, W; Rimondi, F; Ristori, L; Riveline, M; Robertson, Wj; Robinson, A; Rodrigo, T; Rolli, S; Rosenson, L; Roser, R; Rossin, R; Rott, C; Roy, A; Ruiz, A; Safonov, A; St Denis, R; Sakumoto, Wk; Saltzberg, D; Sanchez, C; Sansoni, A; Santi, L; Sato, H; Savard, P; Savoy Navarro, A; Schlabach, P; Schmidt, Ee; Schmidt, Mp; Schmitt, M; Scodellaro, L; Scott, A; Scribano, A; Sedov, A; Segler, S; Seidel, S; Seiya, Y; Semenov, A; Semeria, F; Shah, T; Shapiro, Md; Shepard, Pf; Shibayama, T; Shimojima, M; Shochet, M; Sidoti, A; Siegrist, J; Sill, A; Sinervo, P; Singh, P; Slaughter, Aj; Sliwa, K; Smith, C; Snider, Fd; Solodsky, A; Spalding, J; Speer, T; Sphicas, P; Spinella, F; Spiropulu, M; Spiegel, L; Steele, J; Stefanini, A; Strologas, J; Strumia, F; Stuart, D; Sumorok, K; Suzuki, T; Takano, T; Takashima, R; Takikawa, K; Tamburello, P; Tanaka, M; Tannenbaum, B; Tecchio, M; Tesarek, Rj; Teng, Pk; Terashi, K; Tether, S; Thompson, As; Thomson, E; Thurm,
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/71481
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 51
social impact