Measurement of the Lambdab0 lifetime in Lambdab0 --> Lambdac+pi- decays in pp collisions at square root of s = 1.96 TeV. uri icon

abstract

  • We report a measurement of the lifetime of the Lambda(b)(0) baryon in decays to the Lambda(c)(+)pi(-) final state in a sample corresponding to 1.1 fb(-1) collected in pp collisions at square root of s = 1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Lambda(b)(0) events we measure tau(Lambda(b)(0)) = 1.401 +/- 0.046(stat) +/- 0.035(syst) ps (corresponding to ctau(Lambda(b)(0)) = 420.1 +/- 13.7(stat) +/- 10.6(syst) microm, where c is the speed of light). The ratio of this result and the world average B(0) lifetime yields tau(Lambda(b)(0))/tau(B(0)) = 0.918 +/- 0.038 (stat) and (syst), in good agreement with recent theoretical predictions.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Aaltonen, T., Adelman, J., Alvarez Gonzlez, B., Amerio, S., Amidei, D., Anastassov, A., ... CDF Collaboration.

citation count

  • 24

complete list of authors

  • Aaltonen, T||Adelman, J||Alvarez González, B||Amerio, S||Amidei, D||Anastassov, A||Annovi, A||Antos, J||Apollinari, G||Apresyan, A||Arisawa, T||Artikov, A||Asaadi, J||Ashmanskas, W||Attal, A||Aurisano, A||Azfar, F||Badgett, W||Barbaro-Galtieri, A||Barnes, VE||Barnett, BA||Barria, P||Bartos, P||Bauer, G||Beauchemin, P-H||Bedeschi, F||Beecher, D||Behari, S||Bellettini, G||Bellinger, J||Benjamin, D||Beretvas, A||Bhatti, A||Binkley, M||Bisello, D||Bizjak, I||Blair, RE||Blocker, C||Blumenfeld, B||Bocci, A||Bodek, A||Boisvert, V||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||Calancha, C||Camarda, S||Campanelli, M||Campbell, M||Canelli, F||Canepa, A||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||Chang, SH||Chen, YC||Chertok, M||Chiarelli, G||Chlachidze, G||Chlebana, F||Cho, K||Chokheli, D||Chou, JP||Chung, K||Chung, WH||Chung, YS||Chwalek, T||Ciobanu, CI||Ciocci, MA||Clark, A||Clark, D||Compostella, G||Convery, ME||Conway, J||Corbo, M||Cordelli, M||Cox, CA||Cox, DJ||Crescioli, F||Cuenca Almenar, C||Cuevas, J||Culbertson, R||Cully, JC||Dagenhart, D||Datta, M||Davies, T||de Barbaro, P||De Cecco, S||Deisher, A||De Lorenzo, G||Dell'Orso, M||Deluca, C||Demortier, L||Deng, J||Deninno, M||d'Errico, M||Di Canto, A||di Giovanni, GP||Di Ruzza, B||Dittmann, JR||D'Onofrio, M||Donati, S||Dong, P||Dorigo, T||Dube, S||Ebina, K||Elagin, A||Erbacher, R||Errede, D||Errede, S||Ershaidat, N||Eusebi, R||Fang, HC||Farrington, S||Fedorko, WT||Feild, RG||Feindt, M||Fernandez, JP||Ferrazza, C||Field, R||Flanagan, G||Forrest, R||Frank, MJ||Franklin, M||Freeman, JC||Furic, I||Gallinaro, M||Galyardt, J||Garberson, F||Garcia, JE||Garfinkel, AF||Garosi, P||Gerberich, H||Gerdes, D||Gessler, A||Giagu, S||Giakoumopoulou, V||Giannetti, P||Gibson, K||Gimmell, JL||Ginsburg, CM||Giokaris, N||Giordani, M||Giromini, P||Giunta, M||Giurgiu, G||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||Guimaraes da Costa, J||Gunay-Unalan, Z||Haber, C||Hahn, SR||Halkiadakis, E||Han, B-Y||Han, JY||Happacher, F||Hara, K||Hare, D||Hare, M||Harr, RF||Hartz, M||Hatakeyama, K||Hays, C||Heck, M||Heinrich, J||Herndon, M||Heuser, J||Hewamanage, S||Hidas, D||Hill, CS||Hirschbuehl, D||Hocker, A||Hou, S||Houlden, M||Hsu, S-C||Hughes, RE||Hurwitz, M||Husemann, U||Hussein, M||Huston, J||Incandela, J||Introzzi, G||Iori, M||Ivanov, A||James, E||Jang, D||Jayatilaka, B||Jeon, EJ||Jha, MK||Jindariani, S||Johnson, W||Jones, M||Joo, KK||Jun, SY||Jung, JE||Junk, TR||Kamon, T||Kar, D||Karchin, PE||Kato, Y||Kephart, R||Ketchum, W||Keung, J||Khotilovich, V||Kilminster, B||Kim, DH||Kim, HS||Kim, HW||Kim, JE||Kim, MJ||Kim, SB||Kim, SH||Kim, YK||Kimura, N||Kirsch, L||Klimenko, S||Kondo, K||Kong, DJ||Konigsberg, J||Korytov, A||Kotwal, AV||Kreps, M||Kroll, J||Krop, D||Krumnack, N||Kruse, M||Krutelyov, V||Kuhr, T||Kulkarni, NP||Kurata, M||Kwang, S||Laasanen, AT||Lami, S||Lammel, S||Lancaster, M||Lander, RL||Lannon, K||Lath, A||Latino, G||Lazzizzera, I||LeCompte, T||Lee, E||Lee, HS||Lee, JS||Lee, SW||Leone, S||Lewis, JD||Lin, C-J||Linacre, J||Lindgren, M||Lipeles, E||Lister, A||Litvintsev, DO||Liu, C||Liu, T||Lockyer, NS||Loginov, A||Lovas, L||Lucchesi, D||Lueck, J||Lujan, P||Lukens, P||Lungu, G||Lys, J||Lysak, R||MacQueen, D||Madrak, R||Maeshima, K||Makhoul, K||Maksimovic, P||Malde, S||Malik, S||Manca, G||Manousakis-Katsikakis, A||Margaroli, F||Marino, C||Marino, CP||Martin, A||Martin, MS||Martin, V||Martínez, M||Martínez-Ballarín, R||Mastrandrea, P||Mathis, M||Mattson, ME||Mazzanti, P||McFarland, KS||McIntyre, P||McNulty, R||Mehta, A||Mehtala, P||Menzione, A||Mesropian, C||Miao, T||Mietlicki, D||Miladinovic, N||Miller, R||Mills, C||Milnik, M||Mitra, A||Mitselmakher, G||Miyake, H||Moed, S||Moggi, N||Mondragon, MN||Moon, CS||Moore, R||Morello, MJ||Morlock, J||Movilla Fernandez, P||Mülmenstädt, J||Mukherjee, A||Muller, Th||Mumford, R||Murat, P||Mussini, M||Nachtman, J||Nagai, Y||Naganoma, J||Nakamura, K||Nakano, I||Napier, A||Nett, J||Neu, C||Neubauer, MS||Neubauer, S||Nielsen, J||Nodulman, L||Norman, M||Norniella, O||Nurse, E||Oakes, L||Oh, SH||Oh, YD||Oksuzian, I||Okusawa, T||Orava, R||Osterberg, K||Pagan Griso, S||Pagliarone, C||Palencia, E||Papadimitriou, V||Papaikonomou, A||Paramanov, AA||Parks, B||Pashapour, S||Patrick, J||Pauletta, G||Paulini, M||Paus, C||Peiffer, T||Pellett, DE||Penzo, A||Phillips, TJ||Piacentino, G||Pianori, E||Pinera, L||Pitts, K||Plager, C||Pondrom, L||Potamianos, K||Poukhov, O||Prokoshin, F||Pronko, A||Ptohos, F||Pueschel, E||Punzi, G||Pursley, J||Rademacker, J||Rahaman, A||Ramakrishnan, V||Ranjan, N||Redondo, I||Renton, P||Renz, M||Rescigno, M||Richter, S||Rimondi, F||Ristori, L||Robson, A||Rodrigo, T||Rodriguez, T||Rogers, E||Rolli, S||Roser, R||Rossi, M||Rossin, R||Roy, P||Ruiz, A||Russ, J||Rusu, V||Rutherford, B||Saarikko, H||Safonov, A||Sakumoto, WK||Santi, L||Sartori, L||Sato, K||Savoy-Navarro, A||Schlabach, P||Schmidt, A||Schmidt, EE||Schmidt, MA||Schmidt, MP||Schmitt, M||Schwarz, T||Scodellaro, L||Scribano, A||Scuri, F||Sedov, A||Seidel, S||Seiya, Y||Semenov, A||Sexton-Kennedy, L||Sforza, F||Sfyrla, A||Shalhout, SZ||Shears, T||Shepard, PF||Shimojima, M||Shiraishi, S||Shochet, M||Shon, Y||Shreyber, I||Simonenko, A||Sinervo, P||Sisakyan, A||Slaughter, AJ||Slaunwhite, J||Sliwa, K||Smith, JR||Snider, FD||Snihur, R||Soha, A||Somalwar, S||Sorin, V||Squillacioti, P||Stanitzki, M||St Denis, R||Stelzer, B||Stelzer-Chilton, O||Stentz, D||Strologas, J||Strycker, GL||Suh, JS||Sukhanov, A||Suslov, I||Taffard, A||Takashima, R||Takeuchi, Y||Tanaka, R||Tang, J||Tecchio, M||Teng, PK||Thom, J||Thome, J||Thompson, GA||Thomson, E||Tipton, P||Ttito-Guzmán, P||Tkaczyk, S||Toback, D||Tokar, S||Tollefson, K||Tomura, T||Tonelli, D||Torre, S||Torretta, D||Totaro, P||Tourneur, S||Trovato, M||Tsai, S-Y||Tu, Y||Turini, N||Ukegawa, F||Uozumi, S||van Remortel, N||Varganov, A||Vataga, E||Vázquez, F||Velev, G||Vellidis, C||Vidal, M||Vila, I||Vilar, R||Vogel, M||Volobouev, I||Volpi, G||Wagner, P||Wagner, RG||Wagner, RL||Wagner, W||Wagner-Kuhr, J||Wakisaka, T||Wallny, R||Wang, SM||Warburton, A||Waters, D||Weinberger, M||Weinelt, J||Wester, WC||Whitehouse, B||Whiteson, D||Wicklund, AB||Wicklund, E||Wilbur, S||Williams, G||Williams, HH||Wilson, P||Winer, BL||Wittich, P||Wolbers, S||Wolfe, C||Wolfe, H||Wright, T||Wu, X||Würthwein, F||Yagil, A||Yamamoto, K||Yamaoka, J||Yang, UK||Yang, YC||Yao, WM||Yeh, GP||Yi, K||Yoh, J||Yorita, K||Yoshida, T||Yu, GB||Yu, I||Yu, SS||Yun, JC||Zanetti, A||Zeng, Y||Zhang, X||Zheng, Y||Zucchelli, S

publication date

  • March 2010