Measurement of ratios of fragmentation fractions for bottom hadrons inppcollisions ats=1.96TeV Academic Article uri icon

abstract

  • 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.

published proceedings

  • Physical Review D

author list (cited authors)

  • Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M. G., Gonzlez, B., Amerio, S., ... Zucchelli, S.

citation count

  • 32

complete list of authors

  • Aaltonen, T||Adelman, J||Akimoto, T||Albrow, MG||González, B Álvarez||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||Giovanni, GP Di||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, J||Garberson, F||Garcia, JE||Garfinkel, AF||Genser, K||Gerberich, H||Gerdes, D||Giagu, S||Giakoumopolou, V||Giannetti, P||Gibson, K||Gimmell, JL||Ginsburg, CM||Giokaris, N||Giordani, M||Giromini, P||Giunta, M||Glagolev, V||Glenzinski, D||Gold, M||Goldschmidt, N||Golossanov, A||Gomez, G||Gomez-Ceballos, G||Goncharov, M||González, O||Gorelov, I||Goshaw, AT||Goulianos, K||Gresele, A||Grinstein, S||Grosso-Pilcher, C||Group, RC||Grundler, U||da Costa, J Guimaraes||Gunay-Unalan, Z||Haber, C||Hahn, K||Hahn, SR||Halkiadakis, E||Hamilton, A||Han, B-Y||Han, JY||Handler, R||Happacher, F||Hara, K||Hare, D||Hare, M||Harper, S||Harr, RF||Harris, RM||Hartz, M||Hatakeyama, K||Hauser, J||Hays, C||Heck, M||Heijboer, A||Heinemann, B||Heinrich, J||Henderson, C||Herndon, M||Heuser, J||Hewamanage, S||Hidas, D||Hill, CS||Hirschbuehl, D||Hocker, A||Hou, S||Houlden, M||Hsu, S-C||Huffman, BT||Hughes, RE||Husemann, U||Huston, J||Incandela, J||Introzzi, G||Iori, M||Ivanov, A||Iyutin, B||James, E||Jayatilaka, B||Jeans, D||Jeon, EJ||Jindariani, S||Johnson, W||Jones, M||Joo, KK||Jun, SY||Jung, JE||Junk, TR||Kamon, T||Kar, D||Karchin, PE||Kato, Y||Kephart, R||Kerzel, U||Khotilovich, V||Kilminster, B||Kim, DH||Kim, HS||Kim, JE||Kim, MJ||Kim, SB||Kim, SH||Kim, YK||Kimura, N||Kirsch, L||Klimenko, S||Klute, M||Knuteson, B||Ko, BR||Koay, SA||Kondo, K||Kong, DJ||Konigsberg, J||Korytov, A||Kotwal, AV||Kraus, J||Kreps, M||Kroll, J||Krumnack, N||Kruse, M||Krutelyov, V||Kubo, T||Kuhlmann, SE||Kuhr, T||Kulkarni, NP||Kusakabe, Y||Kwang, S||Laasanen, AT||Lai, S||Lami, S||Lammel, S||Lancaster, M||Lander, RL||Lannon, K||Lath, A||Latino, G||Lazzizzera, I||LeCompte, T||Lee, J||Lee, J||Lee, YJ||Lee, SW||Lefèvre, R||Leonardo, N||Leone, S||Levy, S||Lewis, JD||Lin, C||Lin, CS||Linacre, J||Lindgren, M||Lipeles, E||Lister, A||Litvintsev, DO||Liu, T||Lockyer, NS||Loginov, A||Loreti, M||Lovas, L||Lu, R-S||Lucchesi, D||Lueck, J||Luci, C||Lujan, P||Lukens, P||Lungu, G||Lyons, L||Lys, J||Lysak, R||Lytken, E||Mack, 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||Martínez, M||Martínez-Ballarín, 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||Mülmenstädt, 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||Saltó, 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, M||Shochet, M||Shon, Y||Shreyber, I||Sidoti, A||Sinervo, P||Sisakyan, A||Slaughter, AJ||Slaunwhite, J||Sliwa, K||Smith, JR||Snider, FD||Snihur, R||Soderberg, M||Soha, A||Somalwar, S||Sorin, V||Spalding, J||Spinella, F||Spreitzer, T||Squillacioti, P||Stanitzki, M||Denis, R St||Stelzer, B||Stelzer-Chilton, O||Stentz, D||Strologas, J||Stuart, D||Suh, JS||Sukhanov, A||Sun, H||Suslov, I||Suzuki, T||Taffard, A||Takashima, R||Takeuchi, Y||Tanaka, R||Tecchio, M||Teng, PK||Terashi, K||Thom, J||Thompson, AS||Thompson, GA||Thomson, E||Tipton, P||Tiwari, V||Tkaczyk, S||Toback, D||Tokar, S||Tollefson, K||Tomura, T||Tonelli, D||Torre, S||Torretta, D||Tourneur, S||Trischuk, W||Tu, Y||Turini, N||Ukegawa, F||Uozumi, S||Vallecorsa, S||van Remortel, N||Varganov, A||Vataga, E||Vázquez, F||Velev, G||Vellidis, C||Veszpremi, V||Vidal, M||Vidal, R||Vila, I||Vilar, R||Vine, T||Vogel, M||Volobouev, I||Volpi, G||Würthwein, F||Wagner, P||Wagner, RG||Wagner, RL||Wagner-Kuhr, J||Wagner, W||Wakisaka, T||Wallny, R||Wang, SM||Warburton, A||Waters, D||Weinberger, M||Wester, WC||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

publication date

  • April 2008