Article

Observation of B(s)0-->K+ K- and measurements of branching fractions of charmless two-body decays of B0 and B(s)0 mesons in pp collisions at square root of s = 1.96 TeV.

A Abulencia, D Acosta, J Adelman, T Affolder, T Akimoto, M G Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, J-F Arguin, T Arisawa, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, P Azzurri, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, V E Barnes, B A Barnett, S Baroiant, V Bartsch, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben Haim, D Benjamin, A Beretvas, J Beringer, T Berry, A Bhatti, M Binkley, D Bisello, R E Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, A Bolshov, D Bortoletto, J Boudreau, A Boveia, B Brau, C Bromberg, E Brubaker, J Budagov, H S Budd, S Budd, K Burkett, G Busetto, P Bussey, K L Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carron, M Casarsa, A Castro, P Catastini, D Cauz, M Cavalli-Sforza, A Cerri, L Cerrito, S H Chang, J Chapman, Y C Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, J P Chou, P H Chu, S H Chuang, K Chung, W H Chung, Y S Chung, M Ciljak, C I Ciobanu, M A Ciocci, A Clark, D Clark, M Coca, G Compostella, M E Convery, J Conway, B Cooper, K Copic, M Cordelli, G Cortiana, F Crescioli, A Cruz, C Cuenca Almenar, J Cuevas, R Culbertson, D Cyr, S Daronco, S D'Auria, M D'Onofrio, D Dagenhart, P de Barbaro, S De Cecco, A Deisher, G De Lentdecker, M Dell'Orso, F Delli Paoli, S Demers, L Demortier, J Deng, M Deninno, D De Pedis, P F Derwent, C Dionisi, J R Dittmann, P DiTuro, C Dörr, S Donati, M Donega, P Dong, J Donini, T Dorigo, S Dube, K Ebina, J Efron, J Ehlers, R Erbacher, D Errede, S Errede, R Eusebi, H C Fang, S Farrington, I Fedorko, W T Fedorko, R G Feild, M Feindt, J P Fernandez, R Field, G Flanagan, L R Flores-Castillo, A Foland, S Forrester, G W Foster, M Franklin, J C Freeman, I Furic, M Gallinaro, J Galyardt, J E Garcia, M Garcia Sciveres, A F Garfinkel, C Gay, H Gerberich, D Gerdes, S Giagu, P Giannetti, A Gibson, K Gibson, C Ginsburg, N Giokaris, K Giolo, M Giordani, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N Goldschmidt, J Goldstein, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, A T Goshaw, Y Gotra, K Goulianos, A Gresele, M Griffiths, S Grinstein, C Grosso-Pilcher, U Grundler, J Guimaraes da Costa, Z Gunay-Unalan, C Haber, S R Hahn, K Hahn, E Halkiadakis, A Hamilton, B-Y Han, J Y Han, R Handler, F Happacher, K Hara, M Hare, S Harper, R F Harr, R M Harris, K Hatakeyama, J Hauser, C Hays, A Heijboer, B Heinemann, J Heinrich, M Herndon, D Hidas, C S Hill, D Hirschbuehl, A Hocker, A Holloway, S Hou, M Houlden, S-C Hsu, B T Huffman, R E Hughes, J Huston, J Incandela, G Introzzi, M Iori, Y Ishizawa, A Ivanov, B Iyutin, E James, D Jang, B Jayatilaka, D Jeans, H Jensen, E J Jeon, S Jindariani, M Jones, K K Joo, S Y Jun, T R Junk, T Kamon, J Kang, P E Karchin, Y Kato, Y Kemp, R Kephart, U Kerzel, V Khotilovich, B Kilminster, D H Kim, H S Kim, J E Kim, M J Kim, S B Kim, S H Kim, Y K Kim, L Kirsch, S Klimenko, M Klute, B Knuteson, B R Ko, H Kobayashi, K Kondo, D J Kong, J Konigsberg, A Korytov, A V Kotwal, A Kovalev, A Kraan, J Kraus, I Kravchenko, M Kreps, J Kroll, N Krumnack, M Kruse, V Krutelyov, S E Kuhlmann, Y Kusakabe, S Kwang, A T Laasanen, S Lai, S Lami, S Lammel, M Lancaster, R L Lander, K Lannon, A Lath, G Latino, I Lazzizzera, T LeCompte, J Lee, Y J Lee, S W Lee, R Lefèvre, N Leonardo, S Leone, S Levy, J D Lewis, C Lin, C S Lin, M Lindgren, E Lipeles, A Lister, D O Litvintsev, T Liu, N S Lockyer, A Loginov, M Loreti, P Loverre, R-S Lu, D Lucchesi, P Lujan, P Lukens, G Lungu, L Lyons, J Lys, R Lysak, E Lytken, P Mack, D MacQueen, R Madrak, K Maeshima, T Maki, P Maksimovic, S Malde, G Manca, F Margaroli, R Marginean, C Marino, A Martin, V Martin, M Martínez, T Maruyama, P Mastrandrea, H Matsunaga, M E Mattson, R Mazini, P Mazzanti, K S McFarland, P McIntyre, R McNulty, A Mehta, S Menzemer, A Menzione, P Merkel, C Mesropian, A Messina, M von der Mey, T Miao, N Miladinovic, J Miles, R Miller, J S Miller, C Mills, M Milnik, R Miquel, A Mitra, G Mitselmakher, A Miyamoto, N Moggi, B Mohr, R Moore, M Morello, P Movilla Fernandez, J Mülmenstädt, A Mukherjee, Th Muller, R Mumford, P Murat, J Nachtman, J Naganoma, S Nahn, I Nakano, A Napier, D Naumov, V Necula, C Neu, M S Neubauer, J Nielsen, T Nigmanov, L Nodulman, O Norniella, E Nurse, T Ogawa, S H Oh, Y D Oh, T Okusawa, R Oldeman, R Orava, K Osterberg, C Pagliarone, E Palencia, R Paoletti, V Papadimitriou, A A Paramonov, B Parks, S Pashapour, J Patrick, G Pauletta, M Paulini, C Paus, D E Pellett, A Penzo, T J Phillips, G Piacentino, J Piedra, L Pinera, K Pitts, C Plager, L Pondrom, X Portell, O Poukhov, N Pounder, F Prakoshyn, A Pronko, J Proudfoot, F Ptohos, G Punzi, J Pursley, J Rademacker, A Rahaman, A Rakitin, S Rappoccio, F Ratnikov, B Reisert, V Rekovic, N van Remortel, P Renton, M Rescigno, S Richter, F Rimondi, L Ristori, W J Robertson, A Robson, T Rodrigo, E Rogers, S Rolli, R Roser, M Rossi, R Rossin, C Rott, A Ruiz, J Russ, V Rusu, H Saarikko, S Sabik, A Safonov, W K Sakumoto, G Salamanna, O Saltó, D Saltzberg, C Sanchez, L Santi, S Sarkar, L Sartori, K Sato, P Savard, A Savoy-Navarro, T Scheidle, P Schlabach, E E Schmidt, M P Schmidt, M Schmitt, T Schwarz, L Scodellaro, A L Scott, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, L Sexton-Kennedy, I Sfiligoi, M D Shapiro, T Shears, P F Shepard, D Sherman, M Shimojima, M Shochet, Y Shon, I Shreyber, A Sidoti, P Sinervo, A Sisakyan, J Sjolin, A Skiba, A J Slaughter, K Sliwa, J R Smith, F D Snider, R Snihur, M Soderberg, A Soha, S Somalwar, V Sorin, J Spalding, M Spezziga, F Spinella, T Spreitzer, P Squillacioti, M Stanitzki, A Staveris-Polykalas, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, D Stuart, J S Suh, A Sukhanov, K Sumorok, H Sun, T Suzuki, A Taffard, R Takashima, Y Takeuchi, K Takikawa, M Tanaka, R Tanaka, N Tanimoto, M Tecchio, P K Teng, K Terashi, S Tether, J Thom, A S Thompson, E Thomson, P Tipton, V Tiwari, S Tkaczyk, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, M Tönnesmann, S Torre, D Torretta, S Tourneur, W Trischuk, R Tsuchiya, S Tsuno, N Turini, F Ukegawa, T Unverhau, S Uozumi, D Usynin, A Vaiciulis, S Vallecorsa, A Varganov, E Vataga, G Velev, G Veramendi, V Veszpremi, R Vidal, I Vila, R Vilar, T Vine, I Vollrath, I Volobouev, G Volpi, F Würthwein, P Wagner, R G Wagner, R L Wagner, W Wagner, R Wallny, T Walter, Z Wan, S M Wang, A Warburton, S Waschke, D Waters, W C Wester, B Whitehouse, D Whiteson, A B Wicklund, E Wicklund, G Williams, H H Williams, P Wilson, B L Winer, P Wittich, S Wolbers, C Wolfe, T Wright, X Wu, S M Wynne, A Yagil, K Yamamoto, J Yamaoka, T Yamashita, C Yang, U K Yang, Y C Yang, W M Yao, G P Yeh, J Yoh, K Yorita, T Yoshida, G B Yu, I Yu, S S Yu, J C Yun, L Zanello, A Zanetti, I Zaw, F Zetti, X Zhang, J Zhou, S Zucchelli

University of Illinois, Urbana, Illinois 61801, USA.
Physical Review Letters (impact factor: 7.37). 11/2006; 97(21):211802.
Source: PubMed

ABSTRACT We search for decays of the type B(s)0-->h+ h'- (where h,h' = K or pi) in 180 pb(-1) of pp collisions collected at the Tevatron by the upgraded Collider Detector at Fermilab. We report the first observation of the new mode B(s)0-->K+ K- with a yield of 236+/-32 events, corresponding to (fs/fd) x B(B(s)0-->K+ K-)/B(B0-->K+ pi-) = 0.46+/-0.08stat+/-0.07syst, where fs/fd is the ratio of production fractions of B(s)0 and B0. We find results in agreement with world averages for the B0 modes, and set the following new limits at 90% C.L.: B(B(s)0-->K- pi+) < 5.6 x 10(-6) and B(B(s)0-->pi+ pi-) < 1.7 x 10(-6).

0 0
 · 
0 Bookmarks
 · 
67 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

B0 modes
 
decays
 
fs/fd
 
pp collisions
 
production fractions
 
upgraded Collider Detector
 
world averages
 

A. Abulencia