Measurement of ratios of fragmentation fractions for bottom hadrons in p(p)over-bar collisions at root s=1.96 TeV
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This paper describes the first measurement of b-quark fragmentation fractions into bottom hadrons in Run II of the Tevatron Collider at Fermilab. The result is based on a 360pb-1 sample of data collected with the CDF II detector in pp collisions at s=1.96TeV. Semileptonic decays of B0, B-, and Bs0 mesons, as well as b0 baryons, are reconstructed. For an effective bottom hadron pT threshold of 7GeV/c, the fragmentation fractions are measured to be fu/fd=1.0540.018(stat)-0.045+0.025(sys)0. 058(B), fs/(fu+fd)=0.1600.005(stat)-0.010+0.011(sys)-0.034+0.057(B), and fb/(fu+fd)=0.2810.012(stat)-0.056+0.058(sys)-0.087+0.128(B), where the uncertainty B is due to uncertainties on measured branching ratios. The value of fs/(fu+fd) agrees within one standard deviation with previous CDF measurements and the world average of this quantity, which is dominated by LEP measurements. However, the ratio fb/(fu+fd) is approximately twice the value previously measured at LEP. The approximately 2 discrepancy is examined in terms of kinematic differences between the two production environments. 2008 The American Physical Society.
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Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M. G., Gonzalez, B. A., Amerio, S., ... Zucchelli, S.
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Aaltonen, T||Adelman, J||Akimoto, T||Albrow, MG||Gonzalez, B Alvarez||Amerio, S||Amidei, D||Anastassov, A||Annovi, A||Antos, J||Aoki, M||Apollinari, G||Apresyan, A||Arisawa, T||Artikov, A||Ashmanskas, W||Attal, A||Aurisano, A||Azfar, F||Azzi-Bacchetta, P||Azzurri, P||Bacchetta, N||Badgett, W||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Baroiant, S||Bartsch, V||Bauer, G||Beauchemin, P-H||Bedeschi, F||Bednar, P||Behari, S||Bellettini, G||Bellinger, J||Belloni, A||Benjamin, D||Beretvas, A||Beringer, J||Berry, T||Bhatti, A||Binkley, M||Bisello, D||Bizjak, I||Blair, RE||Blocker, C||Blumenfeld, B||Bocci, A||Bodek, A||Boisvert, V||Bolla, G||Bolshov, A||Bortoletto, D||Boudreau, J||Boveia, A||Brau, B||Bridgeman, A||Brigliadori, L||Bromberg, C||Brubaker, E||Budagov, J||Budd, HS||Budd, S||Burkett, K||Busetto, G||Bussey, P||Buzatu, A||Byrum, KL||Cabrera, S||Campanelli, M||Campbell, M||Canelli, F||Canepa, A||Carlsmith, D||Carosi, R||Carrillo, S||Carron, S||Casal, B||Casarsa, M||Castro, A||Catastini, P||Cauz, D||Cavalli-Sforza, M||Cerri, A||Cerrito, L||Chang, SH||Chen, YC||Chertok, M||Chiarelli, G||Chlachidze, G||Chlebana, F||Cho, K||Chokheli, D||Chou, JP||Choudalakis, G||Chuang, SH||Chung, K||Chung, WH||Chung, YS||Ciobanu, CI||Ciocci, MA||Clark, A||Clark, D||Compostella, G||Convery, ME||Conway, J||Cooper, B||Copic, K||Cordelli, M||Cortiana, G||Crescioli, F||Almenar, C Cuenca||Cuevas, J||Culbertson, R||Cully, JC||Dagenhart, D||Datta, M||Davies, T||de Barbaro, P||De Cecco, S||Deisher, A||De Lentdecker, G||De Lorenzo, G||Dell'Orso, M||Demortier, L||Deng, J||Deninno, M||De Pedis, D||Derwent, PF||Di Giovanni, GP||Dionisi, C||Di Ruzza, B||Dittmann, JR||D'Onofrio, M||Donati, S||Dong, P||Donini, J||Dorigo, T||Dube, S||Efron, J||Erbacher, R||Errede, D||Errede, S||Eusebi, R||Fang, HC||Farrington, S||Fedorko, WT||Feild, RG||Feindt, M||Fernandez, JP||Ferrazza, C||Field, R||Flanagan, G||Forrest, R||Forrester, S||Franklin, M||Freeman, JC||Furic, I||Gallinaro, M||Galyardt, 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P||MacQueen, D||Madrak, R||Maeshima, K||Makhoul, K||Maki, T||Maksimovic, P||Malde, S||Malik, S||Manca, G||Manousakis, A||Margaroli, F||Marino, C||Marino, CP||Martin, A||Martin, M||Martin, V||Martinez, M||Martinez-Ballarin, R||Maruyama, T||Mastrandrea, P||Masubuchi, T||Mattson, ME||Mazzanti, P||McFarland, KS||McIntyre, P||McNulty, R||Mehta, A||Mehtala, P||Menzemer, S||Menzione, A||Merkel, P||Mesropian, C||Messina, A||Miao, T||Miladinovic, N||Miles, J||Miller, R||Mills, C||Milnik, M||Mitra, A||Mitselmakher, G||Miyake, H||Moed, S||Moggi, N||Moon, CS||Moore, R||Morello, M||Fernandez, P Movilla||Muelmenstaedt, J||Mukherjee, A||Muller, Th||Mumford, R||Murat, P||Mussini, M||Nachtman, J||Nagai, Y||Nagano, A||Naganoma, J||Nakamura, K||Nakano, I||Napier, A||Necula, V||Neu, C||Neubauer, MS||Nielsen, J||Nodulman, L||Norman, M||Norniella, O||Nurse, E||Oh, SH||Oh, YD||Oksuzian, I||Okusawa, T||Oldeman, R||Orava, R||Osterberg, K||Griso, S Pagan||Pagliarone, C||Palencia, E||Papadimitriou, V||Papaikonomou, A||Paramonov, AA||Parks, B||Pashapour, S||Patrick, J||Pauletta, G||Paulini, M||Paus, C||Pellett, DE||Penzo, A||Phillips, TJ||Piacentino, G||Piedra, J||Pinera, L||Pitts, K||Plager, C||Pondrom, L||Portell, X||Poukhov, O||Pounder, N||Prakoshyn, F||Pronko, A||Proudfoot, J||Ptohos, F||Punzi, G||Pursley, J||Rademacker, J||Rahaman, A||Ramakrishnan, V||Ranjan, N||Redondo, I||Reisert, B||Rekovic, V||Renton, P||Rescigno, M||Richter, S||Rimondi, F||Ristori, L||Robson, A||Rodrigo, T||Rogers, E||Rolli, S||Roser, R||Rossi, M||Rossin, R||Roy, P||Ruiz, A||Russ, J||Rusu, V||Saarikko, H||Safonov, A||Sakumoto, WK||Salamanna, G||Salto, O||Santi, L||Sarkar, S||Sartori, L||Sato, K||Savoy-Navarro, A||Scheidle, T||Schlabach, P||Schmidt, EE||Schmidt, MA||Schmidt, MP||Schmitt, M||Schwarz, T||Scodellaro, L||Scott, AL||Scribano, A||Scuri, F||Sedov, A||Seidel, S||Seiya, Y||Semenov, A||Sexton-Kennedy, L||Sfyrla, A||Shalhout, SZ||Shapiro, MD||Shears, T||Shepard, PF||Sherman, D||Shimojima, 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R||Wang, SM||Warburton, A||Waters, D||Weinberger, M||Wester, WCIII||Whitehouse, B||Whiteson, D||Wicklund, AB||Wicklund, E||Williams, G||Williams, HH||Wilson, P||Winer, BL||Wittich, P||Wolbers, S||Wolfe, C||Wright, T||Wu, X||Wynne, SM||Yagil, A||Yamamoto, K||Yamaoka, J||Yamashita, T||Yang, C||Yang, UK||Yang, YC||Yao, WM||Yeh, GP||Yoh, J||Yorita, K||Yoshida, T||Yu, GB||Yu, I||Yu, SS||Yun, JC||Zanello, L||Zanetti, A||Zaw, I||Zhang, X||Zheng, Y||Zucchelli, S
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51 Physical Sciences
5106 Nuclear And Plasma Physics
5107 Particle And High Energy Physics
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http://dx.doi.org/10.1103/physrevd.77.072003