Evidence for the Charmless Annihilation Decay Mode B-s(0) -> pi(+)pi(-)

Aaltonen, T; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel J., A; Arisawa, T; Artikov, A; Asaadi, J; Ashmanskas, W; Auerbach, B; Aurisano, A; Azfar, F; Badgett, W; Bae, T; Barbaro Galtieri, A; Barnes V., E; Barnett B., A; Barria, P; Bartos, P; Bauce, M; Bedeschi, F; Behari, S; Bellettini, G; Bellinger, J; Benjamin, D; Beretvas, A; Bhatti, A; Bisello, D; Bizjak, I; Bland K., R; Blumenfeld, B; Bocci, A; Bodek, A; Bortoletto, D; Boudreau, J; Boveia, A; Brigliadori, L; Bromberg, C; Brucken, E; Budagov, J; Budd H., S; Burkett, K; Busetto, G; Bussey, P; Buzatu, A; Calamba, A; Calancha, C; Camarda, S; Campanelli, M; Campbell, M; Canelli, F; Carls, B; Carlsmith, D; Carosi, R; Carrillo, S; Carron, S; Casal, B; Casarsa, M; Castro, A; Catastini, P; Cauz, Diego; Cavaliere, V; Cavalli Sforza, M; Cerri, A; Cerrito, L; Chen Y., C; Chertok, M; Chiarelli, G; Chlachidze, G; Chlebana, F; Cho, K; Chokheli, D; Chung W., H; Chung Y., S; Ciocci M., A; Clark, A; Clarke, C; Compostella, G; Convery M., E; Conway, J; Corbo, M; Cordelli, M; Cox C., A; Cox D., J; Crescioli, F; Cuevas, J; Culbertson, R; Dagenhart, D; d'Ascenzo, N; Datta, M; de Barbaro, P; Dell'orso, M; Demortier, L; Deninno, M; Devoto, F; d'Errico, M; Di Canto, A; Di Ruzza, B; Dittmann J., R; D'Onofrio, M; Donati, S; Dong, P; Dorigo, M; Dorigo, T; Ebina, K; Elagin, A; Eppig, A; Erbacher, R; Errede, S; Ershaidat, N; Eusebi, R; Farrington, S; Feindt, M; Fernandez J., P; Field, R; Flanagan, G; Forrest, R; Frank M., J; Franklin, M; Freeman J., C; Funakoshi, Y; Furic, I; Gallinaro, M; Garcia J., E; Garfinkel A., F; Garosi, P; Gerberich, H; Gerchtein, E; Giakoumopoulou, V; Giannetti, P; Gibson, K; Ginsburg C., M; Giokaris, N; Giromini, P; Giurgiu, G; Glagolev, V; Glenzinski, D; Gold, M; Goldin, D; Goldschmidt, N; Golossanov, A; Gomez, G; Gomez Ceballos, G; Goncharov, M; Gonzalez, O; Gorelov, I; Goshaw A., T; Goulianos, K; Grinstein, S; Grosso Pilcher, C; Group R., C; Guimaraes da Costa, J; Hahn S., R; Halkiadakis, E; Hamaguchi, A; Han J., Y; Happacher, F; Hara, K; Hare, D; Hare, M; Harr R., F; Hatakeyama, K; Hays, C; Heck, M; Heinrich, J; Herndon, M; Hewamanage, S; Hocker, A; Hopkins, W; Horn, D; Hou, S; Hughes R., E; Hurwitz, M; Husemann, U; Hussain, N; Hussein, M; Huston, J; Introzzi, G; Iori, M; Ivanov, A; James, E; Jang, D; Jayatilaka, B; Jeon E., J; Jindariani, S; Jones, M; Joo K., K; Jun S., Y; Junk T., R; Kamon, T; Karchin P., E; Kasmi, A; Kato, Y; Ketchum, W; Keung, J; Khotilovich, V; Kilminster, B; Kim D., H; Kim H., S; Kim J., E; Kim M., J; Kim S., B; Kim S., H; Kim Y., K; Kim Y., J; Kimura, N; Kirby, M; Klimenko, S; Knoepfel, K; Kondo, K; Kong D., J; Konigsberg, J; Kotwal A., V; Kreps, M; Kroll, J; Krop, D; Kruse, M; Krutelyov, V; Kuhr, T; Kurata, M; Kwang, S; Laasanen A., T; Lami, S; Lammel, S; Lancaster, M; Lander R., L; Lannon, K; Lath, A; Latino, G; Lecompte, T; Lee, E; Lee H., S; Lee J., S; Lee S., W; Leo, S; Leone, S; Lewis J., D; Limosani, A; Lin C., J; Lindgren, M; Lipeles, E; Lister, A; Litvintsev D., O; Liu, C; Liu, H; Liu, Q; Liu, T; Lockwitz, S; Loginov, A; Lucchesi, D; Lueck, J; Lujan, P; Lukens, P; Lungu, G; Lys, J; Lysak, R; Madrak, R; Maeshima, K; Maestro, P; Malik, S; Manca, G; Manousakis Katsikakis, A; Margaroli, F; Marino, C; Martinez, M; Mastrandrea, P; Matera, K; Mattson M., E; Mazzacane, A; Mazzanti, P; McFarland K., S; McIntyre, P; McNulty, R; Mehta, A; Mehtala, P; Mesropian, C; Miao, T; Mietlicki, D; Mitra, A; Miyake, H; Moed, S; Moggi, N; Mondragon M., N; Moon C., S; Moore, R; Morello M., J; Morlock, J; Movilla Fernandez, P; Mukherjee, A; Muller, Th; Murat, P; Mussini, M; Nachtman, J; Nagai, Y; Naganoma, J; Nakano, I; Napier, A; Nett, J; Neu, C; Neubauer M., S; Nielsen, J; Nodulman, L; Noh S., Y; Norniella, O; Oakes, L; Oh S., H; Oh Y., D; Oksuzian, I; Okusawa, T; Orava, R; Ortolan, L; Pagan Griso, S; Pagliarone, C; Palencia, E; Papadimitriou, V; Paramonov A., A; Patrick, J; Pauletta, Giovanni; Paulini, M; Paus, C; Pellett D., E; Penzo, A; Phillips T., J; Piacentino, G; Pianori, E; Pilot, J; Pitts, K; Plager, C; Pondrom, L; Poprocki, S; Potamianos, K; Prokoshin, F; Pranko, A; Ptohos, F; Punzi, G; Rahaman, A; Ramakrishnan, V; Ranjan, N; Redondo, I; Renton, P; Rescigno, M; Riddick, T; Rimondi, F; Ristori, L; Robson, A; Rodrigo, T; Rodriguez, T; Rogers, E; Rolli, S; Roser, R; Ruffini, F; Ruiz, A; Russ, J; Rusu, V; Safonov, A; Sakumoto W., K; Sakurai, Y; Santi, Lorenzo Gianni; Sato, K; Saveliev, V; Savoy Navarro, A; Schlabach, P; Schmidt, A; Schmidt E., E; Schwarz, T; Scodellaro, L; Scribano, A; Scuri, Fabrizio; Seidel, S; Seiya, Y; Semenov, A; Sforza, F; Shalhout S., Z; Shears, T; Shepard P., F; Shimojima, M; Shochet, M; Shreyber Tecker, I; Simonenko, A; Sinervo, P; Sliwa, K; Smith J., R; Snider F., D; Soha, A; Sorin, V; Song, H; Squillacioti, P; Stancari, M; St Denis, R; Stelzer, B; Stelzer Chilton, O; Stentz, D; Strologas, J; Strycker G., L; Sudo, Y; Sukhanov, A; Suslov, I; Takemasa, K; Takeuchi, Y; Tang, J; Tecchio, M; Teng P., K; Thom, J; Thome, J; Thompson G., A; Thomson, E; Toback, D; Tokar, S; Tollefson, K; Tomura, T; Tonelli, D; Torre, S; Torretta, D; Totaro, P; Trovato, M; Ukegawa, F; Uozumi, S; Varganov, A; Vazquez, F; Velev, G; Vellidis, C; Vidal, M; Vila, I; Vilar, R; Vizan, J; Vogel, M; Volpi, G; Wagner, P; Wagner R., L; Wakisaka, T; Wallny, R; Wang S., M; Warburton, A; Waters, D; 3rd, Wester W. C.; Whiteson, D; Wicklund A., B; Wicklund, E; Wilbur, S; Wick, F; Williams H., H; Wilson J., S; Wilson, P; Winer B., L; Wittich, P; Wolbers, S; Wolfe, H; Wright, T; Wu, X; Wu, Z; Yamamoto, K; Yamato, D; Yang, T; Yang U., K; Yang Y., C; Yao W., M; Yeh G., P; Yi, K; Yoh, J; Yorita, K; Yoshida, T; Yu G., B; Yu, I; Yu S., S; Yun J., C; Zanetti, A; Zeng, Y; Zucchelli, S.

doi:10.1103/PhysRevLett.108.211803

We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb(-1) of integrated luminosity, we obtain the first evidence for the B-s(0) -> pi(+)pi(-) decay, with a significance of 3.7 sigma, and a measured branching ratio B(B-s(0) -> pi(+)pi(-)) = (0.57 +/- 0.15(stat) +/- 0.10(syst)) x 10(-6). A search for the B-0 -> K+K- mode in the same sample yields a significance of 2.0 sigma, and a central value estimate B(B-0 -> K+K-) = (0.23 +/- 0.10(stat) +/- 0.10(syst)) x 10(-6).

Evidence for the Charmless Annihilation Decay Mode B-s(0) -> pi(+)pi(-) / Aaltonen T; Alvarez Gonzalez B; Amerio S; Amidei D; Anastassov A; Annovi A; Antos J; Apollinari G; Appel J A; Arisawa T; Artikov A; Asaadi J; Ashmanskas W; Auerbach B; Aurisano A; Azfar F; Badgett W; Bae T; Barbaro-Galtieri A; Barnes V E; Barnett B A; Barria P; Bartos P; Bauce M; Bedeschi F; Behari S; Bellettini G; Bellinger J; Benjamin D; Beretvas A; Bhatti A; Bisello D; Bizjak I; Bland K R; Blumenfeld B; Bocci A; Bodek A; Bortoletto D; Boudreau J; Boveia A; Brigliadori L; Bromberg C; Brucken E; Budagov J; Budd H S; Burkett K; Busetto G; Bussey P; Buzatu A; Calamba A; Calancha C; Camarda S; Campanelli M; Campbell M; Canelli F; Carls B; Carlsmith D; Carosi R; Carrillo S; Carron S; Casal B; Casarsa M; Castro A; Catastini P; Cauz D; Cavaliere V; Cavalli-Sforza M; Cerri A; Cerrito L; Chen Y C; Chertok M; Chiarelli G; Chlachidze G; Chlebana F; Cho K; Chokheli D; Chung W H; Chung Y S; Ciocci M A; Clark A; Clarke C; Compostella G; Convery M E; Conway J; Corbo M; Cordelli M; Cox C A; Cox D J; Crescioli F; Cuevas J; Culbertson R; Dagenhart D; d'Ascenzo N; Datta M; de Barbaro P; Dell'orso M; Demortier L; Deninno M; Devoto F; d'Errico M; Di Canto A; Di Ruzza B; Dittmann J R; D'Onofrio M; Donati S; Dong P; Dorigo M; Dorigo T; Ebina K; Elagin A; Eppig A; Erbacher R; Errede S; Ershaidat N; Eusebi R; Farrington S; Feindt M; Fernandez J P; Field R; Flanagan G; Forrest R; Frank M J; Franklin M; Freeman J C; Funakoshi Y; Furic I; Gallinaro M; Garcia J E; Garfinkel A F; Garosi P; Gerberich H; Gerchtein E; Giakoumopoulou V; Giannetti P; Gibson K; Ginsburg C M; Giokaris N; Giromini P; Giurgiu G; Glagolev V; Glenzinski D; Gold M; Goldin D; Goldschmidt N; Golossanov A; Gomez G; Gomez-Ceballos G; Goncharov M; Gonzalez O; Gorelov I; Goshaw A T; Goulianos K; Grinstein S; Grosso-Pilcher C; Group R C; Guimaraes da Costa J; Hahn S R; Halkiadakis E; Hamaguchi A; Han J Y; Happacher F; Hara K; Hare D; Hare M; Harr R F; Hatakeyama K; Hays C; Heck M; Heinrich J; Herndon M; Hewamanage S; Hocker A; Hopkins W; Horn D; Hou S; Hughes R E; Hurwitz M; Husemann U; Hussain N; Hussein M; Huston J; Introzzi G; Iori M; Ivanov A; James E; Jang D; Jayatilaka B; Jeon E J; Jindariani S; Jones M; Joo K K; Jun S Y; Junk T R; Kamon T; Karchin P E; Kasmi A; Kato Y; Ketchum W; Keung J; Khotilovich V; Kilminster B; Kim D H; Kim H S; Kim J E; Kim M J; Kim S B; Kim S H; Kim Y K; Kim Y J; Kimura N; Kirby M; Klimenko S; Knoepfel K; Kondo K; Kong D J; Konigsberg J; Kotwal A V; Kreps M; Kroll J; Krop D; Kruse M; Krutelyov V; Kuhr T; Kurata M; Kwang S; Laasanen A T; Lami S; Lammel S; Lancaster M; Lander R L; Lannon K; Lath A; Latino G; Lecompte T; Lee E; Lee H S; Lee J S; Lee S W; Leo S; Leone S; Lewis J D; Limosani A; Lin C-J; Lindgren M; Lipeles E; Lister A; Litvintsev D O; Liu C; Liu H; Liu Q; Liu T; Lockwitz S; Loginov A; Lucchesi D; Lueck J; Lujan P; Lukens P; Lungu G; Lys J; Lysak R; Madrak R; Maeshima K; Maestro P; Malik S; Manca G; Manousakis-Katsikakis A; Margaroli F; Marino C; Martinez M; Mastrandrea P; Matera K; Mattson M E; Mazzacane A; Mazzanti P; McFarland K S; McIntyre P; McNulty R; Mehta A; Mehtala P; Mesropian C; Miao T; Mietlicki D; Mitra A; Miyake H; Moed S; Moggi N; Mondragon M N; Moon C S; Moore R; Morello M J; Morlock J; Movilla Fernandez P; Mukherjee A; Muller Th; Murat P; Mussini M; Nachtman J; Nagai Y; Naganoma J; Nakano I; Napier A; Nett J; Neu C; Neubauer M S; Nielsen J; Nodulman L; Noh S Y; Norniella O; Oakes L; Oh S H; Oh Y D; Oksuzian I; Okusawa T; Orava R; Ortolan L; Pagan Griso S; Pagliarone C; Palencia E; Papadimitriou V; Paramonov A A; Patrick J; Pauletta G; Paulini M; Paus C; Pellett D E; Penzo A; Phillips T J; Piacentino G; Pianori E; Pilot J; Pitts K; Plager C; Pondrom L; Poprocki S; Potamianos K; Prokoshin F; Pranko A; Ptohos F; Punzi G; Rahaman A; Ramakrishnan V; Ranjan N; Redondo I; Renton P; Rescigno M; Riddick T; Rimondi F; Ristori L; Robson A; Rodrigo T; Rodriguez T; Rogers E; Rolli S; Roser R; Ruffini F; Ruiz A; Russ J; Rusu V; Safonov A; Sakumoto W K; Sakurai Y; Santi L; Sato K; Saveliev V; Savoy-Navarro A; Schlabach P; Schmidt A; Schmidt E E; Schwarz T; Scodellaro L; Scribano A; Scuri F; Seidel S; Seiya Y; Semenov A; Sforza F; Shalhout S Z; Shears T; Shepard P F; Shimojima M; Shochet M; Shreyber-Tecker I; Simonenko A; Sinervo P; Sliwa K; Smith J R; Snider F D; Soha A; Sorin V; Song H; Squillacioti P; Stancari M; St Denis R; Stelzer B; Stelzer-Chilton O; Stentz D; Strologas J; Strycker G L; Sudo Y; Sukhanov A; Suslov I; Takemasa K; Takeuchi Y; Tang J; Tecchio M; Teng P K; Thom J; Thome J; Thompson G A; Thomson E; Toback D; Tokar S; Tollefson K; Tomura T; Tonelli D; Torre S; Torretta D; Totaro P; Trovato M; Ukegawa F; Uozumi S; Varganov A; Vazquez F; Velev G; Vellidis C; Vidal M; Vila I; Vilar R; Vizan J; Vogel M; Volpi G; Wagner P; Wagner R L; Wakisaka T; Wallny R; Wang S M; Warburton A; Waters D; Wester W C 3rd; Whiteson D; Wicklund A B; Wicklund E; Wilbur S; Wick F; Williams H H; Wilson J S; Wilson P; Winer B L; Wittich P; Wolbers S; Wolfe H; Wright T; Wu X; Wu Z; Yamamoto K; Yamato D; Yang T; Yang U K; Yang Y C; Yao W-M; Yeh G P; Yi K; Yoh J; Yorita K; Yoshida T; Yu G B; Yu I; Yu S S; Yun J C; Zanetti A; Zeng Y; Zucchelli S. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 108:21(2012), pp. 211803-211803.

Titolo:	Evidence for the Charmless Annihilation Decay Mode B-s(0) -> pi(+)pi(-)
Autori:	Aaltonen T Alvarez Gonzalez B Amerio S Amidei D Anastassov A Annovi A Antos J Apollinari G Appel J. A Arisawa T Artikov A Asaadi J Ashmanskas W Auerbach B Aurisano A Azfar F Badgett W Bae T Barbaro Galtieri A Barnes V. E Barnett B. A Barria P Bartos P Bauce M Bedeschi F Behari S Bellettini G Bellinger J Benjamin D Beretvas A Bhatti A Bisello D Bizjak I Bland K. R Blumenfeld B Bocci A Bodek A Bortoletto D Boudreau J Boveia A Brigliadori L Bromberg C Brucken E Budagov J Budd H. S Burkett K Busetto G Bussey P Buzatu A Calamba A Calancha C Camarda S Campanelli M Campbell M Canelli F Carls B Carlsmith D Carosi R Carrillo S Carron S Casal B Casarsa M Castro A Catastini P CAUZ, Diego Cavaliere V Cavalli Sforza M Cerri A Cerrito L Chen Y. C Chertok M Chiarelli G Chlachidze G Chlebana F Cho K Chokheli D Chung W. H Chung Y. S Ciocci M. A Clark A Clarke C Compostella G Convery M. E Conway J Corbo M Cordelli M Cox C. A Cox D. J Crescioli F Cuevas J Culbertson R Dagenhart D d'Ascenzo N Datta M de Barbaro P Dell'orso M Demortier L Deninno M Devoto F d'Errico M Di Canto A Di Ruzza B Dittmann J. R D'Onofrio M Donati S Dong P Dorigo M Dorigo T Ebina K Elagin A Eppig A Erbacher R Errede S Ershaidat N Eusebi R Farrington S Feindt M Fernandez J. P Field R Flanagan G Forrest R Frank M. J Franklin M Freeman J. C Funakoshi Y Furic I Gallinaro M Garcia J. E Garfinkel A. F Garosi P Gerberich H Gerchtein E Giakoumopoulou V Giannetti P Gibson K Ginsburg C. M Giokaris N Giromini P Giurgiu G Glagolev V Glenzinski D Gold M Goldin D Goldschmidt N Golossanov A Gomez G Gomez Ceballos G Goncharov M Gonzalez O Gorelov I Goshaw A. T Goulianos K Grinstein S Grosso Pilcher C Group R. C Guimaraes da Costa J Hahn S. R Halkiadakis E Hamaguchi A Han J. Y Happacher F Hara K Hare D Hare M Harr R. F Hatakeyama K Hays C Heck M Heinrich J Herndon M Hewamanage S Hocker A Hopkins W Horn D Hou S Hughes R. E Hurwitz M Husemann U Hussain N Hussein M Huston J Introzzi G Iori M Ivanov A James E Jang D Jayatilaka B Jeon E. J Jindariani S Jones M Joo K. K Jun S. Y Junk T. R Kamon T Karchin P. E Kasmi A Kato Y Ketchum W Keung J Khotilovich V Kilminster B Kim D. H Kim H. S Kim J. E Kim M. J Kim S. B Kim S. H Kim Y. K Kim Y. J Kimura N Kirby M Klimenko S Knoepfel K Kondo K Kong D. J Konigsberg J Kotwal A. V Kreps M Kroll J Krop D Kruse M Krutelyov V Kuhr T Kurata M Kwang S Laasanen A. T Lami S Lammel S Lancaster M Lander R. L Lannon K Lath A Latino G Lecompte T Lee E Lee H. S Lee J. S Lee S. W Leo S Leone S Lewis J. D Limosani A Lin C. J Lindgren M Lipeles E Lister A Litvintsev D. O Liu C Liu H Liu Q Liu T Lockwitz S Loginov A Lucchesi D Lueck J Lujan P Lukens P Lungu G Lys J Lysak R Madrak R Maeshima K Maestro P Malik S Manca G Manousakis Katsikakis A Margaroli F Marino C Martinez M Mastrandrea P Matera K Mattson M. E Mazzacane A Mazzanti P McFarland K. S McIntyre P McNulty R Mehta A Mehtala P Mesropian C Miao T Mietlicki D Mitra A Miyake H Moed S Moggi N Mondragon M. N Moon C. S Moore R Morello M. J Morlock J Movilla Fernandez P Mukherjee A Muller Th Murat P Mussini M Nachtman J Nagai Y Naganoma J Nakano I Napier A Nett J Neu C Neubauer M. S Nielsen J Nodulman L Noh S. Y Norniella O Oakes L Oh S. H Oh Y. D Oksuzian I Okusawa T Orava R Ortolan L Pagan Griso S Pagliarone C Palencia E Papadimitriou V Paramonov A. A Patrick J PAULETTA, Giovanni Paulini M Paus C Pellett D. E Penzo A Phillips T. J Piacentino G Pianori E Pilot J Pitts K Plager C Pondrom L Poprocki S Potamianos K Prokoshin F Pranko A Ptohos F Punzi G Rahaman A Ramakrishnan V Ranjan N Redondo I Renton P Rescigno M Riddick T Rimondi F Ristori L Robson A Rodrigo T Rodriguez T Rogers E Rolli S Roser R Ruffini F Ruiz A Russ J Rusu V Safonov A Sakumoto W. K Sakurai Y SANTI, Lorenzo Gianni Sato K Saveliev V Savoy Navarro A Schlabach P Schmidt A Schmidt E. E Schwarz T Scodellaro L Scribano A SCURI, Fabrizio Seidel S Seiya Y Semenov A Sforza F Shalhout S. Z Shears T Shepard P. F Shimojima M Shochet M Shreyber Tecker I Simonenko A Sinervo P Sliwa K Smith J. R Snider F. D Soha A Sorin V Song H Squillacioti P Stancari M St Denis R Stelzer B Stelzer Chilton O Stentz D Strologas J Strycker G. L Sudo Y Sukhanov A Suslov I Takemasa K Takeuchi Y Tang J Tecchio M Teng P. K Thom J Thome J Thompson G. A Thomson E Toback D Tokar S Tollefson K Tomura T Tonelli D Torre S Torretta D Totaro P Trovato M Ukegawa F Uozumi S Varganov A Vazquez F Velev G Vellidis C Vidal M Vila I Vilar R Vizan J Vogel M Volpi G Wagner P Wagner R. L Wakisaka T Wallny R Wang S. M Warburton A Waters D Wester W. C. 3rd Whiteson D Wicklund A. B Wicklund E Wilbur S Wick F Williams H. H Wilson J. S Wilson P Winer B. L Wittich P Wolbers S Wolfe H Wright T Wu X Wu Z Yamamoto K Yamato D Yang T Yang U. K Yang Y. C Yao W. M Yeh G. P Yi K Yoh J Yorita K Yoshida T Yu G. B Yu I Yu S. S Yun J. C Zanetti A Zeng Y Zucchelli S. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2012
Rivista:	PHYSICAL REVIEW LETTERS
Citazione:	Evidence for the Charmless Annihilation Decay Mode B-s(0) -> pi(+)pi(-) / Aaltonen T; Alvarez Gonzalez B; Amerio S; Amidei D; Anastassov A; Annovi A; Antos J; Apollinari G; Appel J A; Arisawa T; Artikov A; Asaadi J; Ashmanskas W; Auerbach B; Aurisano A; Azfar F; Badgett W; Bae T; Barbaro-Galtieri A; Barnes V E; Barnett B A; Barria P; Bartos P; Bauce M; Bedeschi F; Behari S; Bellettini G; Bellinger J; Benjamin D; Beretvas A; Bhatti A; Bisello D; Bizjak I; Bland K R; Blumenfeld B; Bocci A; Bodek A; Bortoletto D; Boudreau J; Boveia A; Brigliadori L; Bromberg C; Brucken E; Budagov J; Budd H S; Burkett K; Busetto G; Bussey P; Buzatu A; Calamba A; Calancha C; Camarda S; Campanelli M; Campbell M; Canelli F; Carls B; Carlsmith D; Carosi R; Carrillo S; Carron S; Casal B; Casarsa M; Castro A; Catastini P; Cauz D; Cavaliere V; Cavalli-Sforza M; Cerri A; Cerrito L; Chen Y C; Chertok M; Chiarelli G; Chlachidze G; Chlebana F; Cho K; Chokheli D; Chung W H; Chung Y S; Ciocci M A; Clark A; Clarke C; Compostella G; Convery M E; Conway J; Corbo M; Cordelli M; Cox C A; Cox D J; Crescioli F; Cuevas J; Culbertson R; Dagenhart D; d'Ascenzo N; Datta M; de Barbaro P; Dell'orso M; Demortier L; Deninno M; Devoto F; d'Errico M; Di Canto A; Di Ruzza B; Dittmann J R; D'Onofrio M; Donati S; Dong P; Dorigo M; Dorigo T; Ebina K; Elagin A; Eppig A; Erbacher R; Errede S; Ershaidat N; Eusebi R; Farrington S; Feindt M; Fernandez J P; Field R; Flanagan G; Forrest R; Frank M J; Franklin M; Freeman J C; Funakoshi Y; Furic I; Gallinaro M; Garcia J E; Garfinkel A F; Garosi P; Gerberich H; Gerchtein E; Giakoumopoulou V; Giannetti P; Gibson K; Ginsburg C M; Giokaris N; Giromini P; Giurgiu G; Glagolev V; Glenzinski D; Gold M; Goldin D; Goldschmidt N; Golossanov A; Gomez G; Gomez-Ceballos G; Goncharov M; Gonzalez O; Gorelov I; Goshaw A T; Goulianos K; Grinstein S; Grosso-Pilcher C; Group R C; Guimaraes da Costa J; Hahn S R; Halkiadakis E; Hamaguchi A; Han J Y; Happacher F; Hara K; Hare D; Hare M; Harr R F; Hatakeyama K; 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Abstract:	We search for annihilation decay modes of neutral b mesons into pairs of charmless charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 6 fb(-1) of integrated luminosity, we obtain the first evidence for the B-s(0) -> pi(+)pi(-) decay, with a significance of 3.7 sigma, and a measured branching ratio B(B-s(0) -> pi(+)pi(-)) = (0.57 +/- 0.15(stat) +/- 0.10(syst)) x 10(-6). A search for the B-0 -> K+K- mode in the same sample yields a significance of 2.0 sigma, and a central value estimate B(B-0 -> K+K-) = (0.23 +/- 0.10(stat) +/- 0.10(syst)) x 10(-6).
Handle:	http://hdl.handle.net/11390/879702
Appare nelle tipologie:	1.1 Articolo in rivista

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