Measurements of the branching fraction and time-dependent CP asymmetries of B0→J/ψπ0 decays

被引：0

作者：

Aubert, B. ^{[1
]}

Barate, R.

Boutigny, D.

Couderc, F.

Karyotakis, Y.

Lees, J. P.

Poireau, V.

Tisserand, V.

Zghiche, A.

Grauges, E.

Palano, A.

Pappagallo, M.

Chen, J. C.

Qi, N. D.

Rong, G.

Wang, P.

Zhu, Y. S.

Eigen, G.

Ofte, I.

Stugu, B.

Abrams, G. S.

Battaglia, M.

Best, D. S.

Brown, D. N.

Button-Shafer, J.

Cahn, R. N.

Charles, E.

Day, C. T.

Gill, M. S.

Gritsan, A. V.

Groysman, Y.

Jacobsen, R. G.

Kadel, R. W.

Kadyk, J. A.

Kerth, L. T.

Kolomensky, Yu. G.

Kukartsev, G.

Lynch, G.

Mir, L. M.

Oddone, P. J.

Orimoto, T. J.

Pripstein, M.

Roe, N. A.

Ronan, M. T.

Wenzel, W. A.

Barrett, M.

Ford, K. E.

Harrison, T. J.

Hart, A. J.

Hawkes, C. M.

机构：

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

[2] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain

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

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

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

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

[7] Univ Calif Berkeley, Lawrence Berkeley Lab, 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] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

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

[26] Ecole Polytech, F-91128 Palaiseau, France

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

[28] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

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

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

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

[32] 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] Univ Karlsruhe, Inst Expt Kernphys, D-76021 Karlsruhe, Germany

[39] Lab Accelerateur Lineaire, 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] Univ Manchester, Manchester M13 9PL, Lancs, England

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

[47] Univ Massachusetts, Amherst, MA 01003 USA

[48] MIT, Nucl Sci Lab, Cambridge, MA 02129 USA

[49] McGill Univ, Montreal, PQ H3A 2T8, Canada

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

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.74.011101

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the branching fraction and time-dependent CP asymmetries in B-0 -> J/psi pi(0) decays based on (231.8 +/- 2.6)x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction B(B-0 -> J/psi pi(0))=(1.94 +/- 0.22(stat)+/- 0.17(syst))x10(-5). We also measure the CP asymmetry parameters C=-0.21 +/- 0.26(stat)+/- 0.06(syst) and S=-0.68 +/- 0.30(stat)+/- 0.04(syst).

引用

页数：8

共 22 条

[11] Measurement of branching fractions for exclusive B decays to charmonium final states -: art. no. 032001 [J].

Aubert, B ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

Tisserand, V ;

Palano, A ;

Chen, GP ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Reinertsen, PL ;

Stugu, B ;

Abbott, B ;

Abrams, GS ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Cahn, RN ;

Clark, AR ;

Gill, MS ;

Gritsan, A ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kluth, S ;

Kolomensky, YG ;

Kral, JF ;

LeClerc, C ;

Levi, ME ;

Liu, T ;

Lynch, G ;

Meyer, A ;

Momayezi, M ;

Oddone, PJ ;

Perazzo, A ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV .

PHYSICAL REVIEW D, 2002, 65 (03)

[12] NOTES ON THE OBSERVABILITY OF CP-VIOLATIONS IN B-DECAYS [J].

BIGI, II ;

SANDA, AI .

NUCLEAR PHYSICS B, 1981, 193 (01) :85-108

[13] PHYSICS WITH THE CRYSTAL BALL DETECTOR [J].

BLOOM, ED ;

PECK, CW .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1983, 33 :143-197

[14] UNITARY SYMMETRY AND LEPTONIC DECAYS [J].

CABIBBO, N .

PHYSICAL REVIEW LETTERS, 1963, 10 (12) :531-&

[15] CP VIOLATION IN B-MESON DECAYS [J].

CARTER, AB ;

SANDA, AI .

PHYSICAL REVIEW D, 1981, 23 (07) :1567-1579

[16]

Ciuchini M, 2005, PHYS REV LETT, V95, DOI [10.1103/PhysRevLett.95.221804, 10.1103/PhysrevLett.95.221804]

[17] Kernel estimation in high-energy physics [J].

Cranmer, K .

COMPUTER PHYSICS COMMUNICATIONS, 2001, 136 (03) :198-207

[18] Review of particle physics [J].

Eidelman, S ;

Hayes, KG ;

Olive, KA ;

Aguilar-Benitez, M ;

Amsler, C ;

Asner, D ;

Babu, KS ;

Barnett, RM ;

Beringer, J ;

Burchat, PR ;

Carone, CD ;

Caso, C ;

Conforto, G ;

Dahl, O ;

D'Ambrosio, G ;

Doser, M ;

Feng, JL ;

Gherghetta, T ;

Gibbons, L ;

Goodman, M ;

Grab, C ;

Groom, DE ;

Gurtu, A ;

Hagiwara, K ;

Hernández-Rey, JJ ;

Hikasa, K ;

Honscheid, K ;

Jawahery, H ;

Kolda, C ;

Kwon, Y ;

Mangano, ML ;

Manohar, AV ;

March-Russell, J ;

Masoni, A ;

Miquel, R ;

Mönig, K ;

Murayama, H ;

Nakamura, K ;

Navas, S ;

Pape, L ;

Patrignani, C ;

Piepke, A ;

Raffelt, G ;

Roos, M ;

Tanabashi, M ;

Terning, J ;

Törnqvist, NA ;

Trippe, TG ;

Vogel, P ;

Wohl, CG .

PHYSICS LETTERS B, 2004, 592 (1-4) :1-1109

[19] The use of multiple measurements in taxonomic problems [J].

Fisher, RA .

ANNALS OF EUGENICS, 1936, 7 :179-188

[20] CP asymmetries in B decays with new physics in decay amplitudes [J].

Grossman, Y ;

Worah, MP .

PHYSICS LETTERS B, 1997, 395 (3-4) :241-249

← 1 2 3 →