Study of the baryonic B decay B- → Σc++ (p)over-barπ-π-

被引:18
|
作者
Lees, J. P. [1 ]
Poireau, V. [1 ]
Tisserand, V. [1 ]
Tico, J. Garra [2 ]
Grauges, E. [2 ]
Palano, A. [3 ,4 ]
Eigen, G. [5 ]
Stugu, B. [5 ]
Brown, D. N. [6 ,7 ,44 ]
Kerth, L. T. [6 ,7 ]
Kolomensky, Yu. G. [6 ,7 ]
Lynch, G. [6 ,7 ]
Koch, H. [8 ]
Schroeder, T. [8 ]
Asgeirsson, D. J. [9 ]
Hearty, C. [9 ]
Mattison, T. S. [9 ]
McKenna, J. A. [9 ]
So, R. Y. [9 ]
Khan, A. [10 ]
Blinov, V. E. [11 ]
Buzykaev, A. R. [11 ]
Druzhinin, V. P. [11 ]
Golubev, V. B. [11 ]
Kravchenko, E. A. [11 ]
Onuchin, A. P. [11 ]
Serednyakov, S. I. [11 ]
Skovpen, Yu. I. [11 ]
Solodov, E. P. [11 ]
Todyshev, K. Yu. [11 ]
Yushkov, A. N. [11 ]
Bondioli, M. [12 ]
Kirkby, D. [12 ]
Lankford, A. J. [12 ]
Mandelkern, M. [12 ]
Atmacan, H. [13 ]
Gary, J. W. [13 ]
Liu, F. [13 ]
Long, O. [13 ]
Vitug, G. M. [13 ]
Campagnari, C. [14 ]
Hong, T. M. [14 ]
Kovalskyi, D. [14 ]
Richman, J. D. [14 ]
West, C. A. [14 ]
Eisner, A. M. [15 ]
Kroseberg, J. [15 ]
Lockman, W. S. [15 ]
Martinez, A. J. [15 ]
Schumm, B. A. [15 ]
机构
[1] Univ Savoie, CNRS, IN2P3, LAPP, F-74941 Annecy Le Vieux, France
[2] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain
[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[4] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[7] Univ Calif Berkeley, Berkeley, CA 94720 USA
[8] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany
[9] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[10] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[11] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[12] Univ Calif Irvine, Irvine, CA 92697 USA
[13] Univ Calif Riverside, Riverside, CA 92521 USA
[14] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[15] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[16] CALTECH, Pasadena, CA 91125 USA
[17] Univ Cincinnati, Cincinnati, OH 45221 USA
[18] Univ Colorado, Boulder, CO 80309 USA
[19] Colorado State Univ, Ft Collins, CO 80523 USA
[20] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany
[21] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[22] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[23] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[24] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy
[25] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[26] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[27] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy
[28] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[29] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India
[30] Harvard Univ, Cambridge, MA 02138 USA
[31] Harvey Mudd Coll, Claremont, CA 91711 USA
[32] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[33] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[34] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[35] Univ Iowa, Iowa City, IA 52242 USA
[36] Iowa State Univ, Ames, IA 50011 USA
[37] Johns Hopkins Univ, Baltimore, MD 21218 USA
[38] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91898 Orsay, France
[39] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France
[40] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[41] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England
[42] Univ London, London E1 4NS, England
[43] Univ London, Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[44] Univ Louisville, Louisville, KY 40292 USA
[45] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[46] Univ Manchester, Manchester M13 9PL, Lancs, England
[47] Univ Maryland, College Pk, MD 20742 USA
[48] Univ Massachusetts, Amherst, MA 01003 USA
[49] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[50] McGill Univ, Montreal, PQ H3A 2T8, Canada
来源
PHYSICAL REVIEW D | 2012年 / 86卷 / 09期
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会; 英国科学技术设施理事会;
关键词
D O I
10.1103/PhysRevD.86.091102
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the measurement of the baryonic B decay B- -> Sigma(++)(c)(p) over bar pi(-)pi(-). Using a data sample of 467 x 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is (2.98 +/- 0.16((stat)) +/- 0.15((syst)) +/- 0.77((Ac))) x 10(-4), where the last error is due to the uncertainty in B(A(c)(+) -> pK(-)pi(+)). The data suggest the existence of resonant subchannels B- -> A(c)(2595)(+) (p) over bar pi(-) and, possibly, B- -> Sigma(++)(c) (Delta) over bar (--)pi(-). We see unexplained structures in m(Sigma(++)(c)pi(-)pi(-)) at 3.25 GeV/c(2), 3.8 GeV/c(2), and 4.2 GeV/c(2).
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页数:8
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