Study of the B- → J/ψK-π+π- decay and measurement of the B- → X(3872)K- branching fraction -: art. no. 071103

被引：371

作者：

Aubert, B ^{[1
]}

Barate, R

Boutigny, D

Couderc, F

Gaillard, JM

Hicheur, A

Karyotakis, Y

Lees, JP

Tisserand, V

Zghiche, A

Palano, A

Pompili, A

Chen, JC

Qi, ND

Rong, G

Wang, P

Zhu, YS

Eigen, G

Ofte, I

Stugu, B

Abrams, GS

Borgland, AW

Breon, AB

Brown, DN

Button-Shafer, J

Cahn, RN

Charles, E

Day, CT

Gill, MS

Gritsan, AV

Groysman, Y

Jacobsen, RG

Kadel, RW

Kadyk, J

Kerth, LT

Kolomensky, YG

Kukartsev, G

LeClerc, C

Lynch, G

Merchant, AM

Mir, LM

Oddone, PJ

Orimoto, TJ

Pripstein, M

Roe, NA

Ronan, MT

Shelkov, VG

Wenzel, WA

Ford, K

Harrison, TJ

机构：

[1] Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France

[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy

[3] Univ Bari, Ist Nazl Fis Nucl, I-70126 Bari, Italy

[4] Inst High Energy Phys, Beijing 100039, Peoples R China

[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway

[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[7] Univ Calif Berkeley, Berkeley, CA 94720 USA

[8] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

[9] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany

[10] Univ Bristol, Bristol BS8 1TL, Avon, England

[11] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada

[12] Brunel Univ, Uxbridge UB8 3PH, Middx, England

[13] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[14] Univ Calif Irvine, Irvine, CA 92697 USA

[15] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[16] Univ Calif Riverside, Riverside, CA 92521 USA

[17] Univ Calif San Diego, La Jolla, CA 92093 USA

[18] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[19] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[20] CALTECH, Pasadena, CA 91125 USA

[21] Univ Cincinnati, Cincinnati, OH 45221 USA

[22] Univ Colorado, Boulder, CO 80309 USA

[23] Colorado State Univ, Ft Collins, CO 80523 USA

[24] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany

[25] Ecole Polytech, LLR, F-91128 Palaiseau, France

[26] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[27] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[28] Univ Ferrara, Ist Nazl Fis Nucl, I-44100 Ferrara, Italy

[29] Florida A&M Univ, Tallahassee, FL 32307 USA

[30] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[31] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[32] Univ Genoa, Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[33] Harvard Univ, Cambridge, MA 02138 USA

[34] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[35] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[36] Univ Iowa, Iowa City, IA 52242 USA

[37] Iowa State Univ, Ames, IA 50011 USA

[38] Lab Accelerateur Lineaire, F-91898 Orsay, France

[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[40] Univ Liverpool, Liverpool L69 72E, Merseyside, England

[41] Queen Mary Univ London, London E1 4NS, England

[42] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England

[43] Univ Louisville, Louisville, KY 40292 USA

[44] Univ Manchester, Manchester M13 9PL, Lancs, England

[45] Univ Maryland, College Pk, MD 20742 USA

[46] Univ Massachusetts, Amherst, MA 01003 USA

[47] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

[48] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada

[49] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[50] Univ Milan, Ist Nazl Fis Nucl, I-20133 Milan, Italy

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.71.071103

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the decay B--> J/psi K(-)pi(+)pi(-) using 117x10(6) B (B) over bar events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy storage ring. We measure the branching fractions B (B--> J/psi K(-)pi(+)pi(-))=(116 +/- 7(stat.)+/- 9(syst.))x10(-5) and B (B--> X(3872)K-)x B (X(3872)-> J/psi pi(+)pi(-))=(1.28 +/- 0.41)x10(-5) and find the mass of the X(3872) to be 3873.4 +/- 1.4 MeV/c(2). We search for the h(c) narrow state in the decay B--> h(c)K(-), h(c)-> J/psi pi(+)pi(-) and for the decay B--> J/psi D(0)pi(-), with D-0-> K(-)pi(+). We set the 90% C.L. limits B(B--> h(c)K(-))xB(h(c)-> J/psi pi(+)pi(-))< 3.4x10(-6) and B(B--> J/psi D(0)pi(-)) < 5.2x10(-5).

引用

页码：1 / 7

页数：7

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