Study of inclusive B- and (B)over-bar0 decays to flavor-tagged D, Ds, and Λc+

被引：13

作者：

Aubert, B. ^{[1
]}

Barate, R.

Bona, M.

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.

Brown, D. N.

Button-Shafer, J.

Cahn, R. N.

Charles, E.

Day, C. T.

Gill, M. S.

Groysman, Y.

Jacobsen, R. G.

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.

Morgan, S. E.

Watson, A. T.

机构：

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

[2] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[3] Univ Bari, Dipartimento 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] Lawrence Berkeley Lab, Berkeley, CA 94720 USA

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

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

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

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

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

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

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

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

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

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

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

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

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

[21] CALTECH, Pasadena, CA 91125 USA

[22] Univ Cincinnati, Cincinnati, OH 45221 USA

[23] Univ Colorado, Boulder, CO 80309 USA

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

[25] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

[26] Tech Univ Dresden, Inst Kernund Teilchenphys, D-01062 Dresden, Germany

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

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

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

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

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

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

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

[34] Harvard Univ, Cambridge, MA 02138 USA

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

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

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

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

[39] Johns Hopkins Univ, Dept Phys & Amp, Baltimore, MD 21218 USA

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

[41] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91898 Orsay, France

[42] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France

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

[44] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

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

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

[47] Univ Louisville, Louisville, KY 40292 USA

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

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

[50] Univ Massachusetts, Amherst, MA 01003 USA

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 07期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.75.072002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a study of inclusive B- and (B) over bar (0) meson decays to (DX)-X-0, (D) over bar X-0, D+X, D-X, Ds+X, Ds-X, Lambda X-+(c), (Lambda) over bar X--(c), based on a sample of 231x10(6) (B) over bar events recorded with the BABAR detector at the Y(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anticharm particles per (B) over bar decay, separately for charged and neutral parents. We derive the total charm yield per B- decay, n(c)(-)=1.208 +/- 0.023 +/- 0.040(-0.029)(+0.035), and per (B) over bar (0) decay, n(c)(0)=1.203 +/- 0.030 +/- 0.034(-0.035)(+0.044) where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the (B) over bar rest frame.

引用

页数：19

共 26 条

[1] Inclusive b decays to wrong sign charmed mesons [J].

Abdallah, J ;

Abreu, P ;

Adam, W ;

Adzic, P ;

Albrecht, T ;

Alderweireld, T ;

Alemany-Fernandez, R ;

Allmendinger, T ;

Allport, PP ;

Amaldi, U ;

Amapane, N ;

Amato, S ;

Anashkin, E ;

Andreazza, A ;

Andringa, S ;

Anjos, N ;

Antilogus, P ;

Apel, WD ;

Arnoud, Y ;

Ask, S ;

Asman, B ;

Augustin, JE ;

Augustinus, A ;

Baillon, P ;

Ballestrero, A ;

Bambade, P ;

Barbiery, R ;

Bardin, D ;

Barker, G ;

Baroncelli, A ;

Battaglia, M ;

Baubillier, M ;

Becks, KH ;

Begalli, M ;

Behrmann, A ;

Ben-Haim, E ;

Benekos, N ;

Benvenuti, A ;

Berat, C ;

Berggren, M ;

Berntzon, L ;

Bertrand, D ;

Besancon, M ;

Besson, N ;

Bloch, D ;

Blom, M ;

Bluj, M ;

Bonesini, M ;

Boonekamp, M ;

Booth, PSL .

PHYSICS LETTERS B, 2003, 561 (1-2) :26-40

[2] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[3]

ALBRECHT H, 1990, Z PHYS C PART FIELDS, V48, P543, DOI 10.1007/BF01614687

[4]

*ALEPH CDF DELPHI, HEPEX0112028 ALEPH C

[5] Measurement of monoenergetic neutrons from the (p)over-bard reaction at rest [J].

Chiba, M ;

Doi, K ;

Fujitani, T ;

Inoue, K ;

Iwahori, J ;

Kawaguti, M ;

Kobayashi, M ;

Koike, M ;

Kozuki, T ;

Kurokawa, S ;

Kusumoto, H ;

Nagano, H ;

Nagashima, Y ;

Omori, T ;

Sugimoto, S ;

Takasaki, M ;

Takeutchi, F ;

Tsuchiya, M ;

Ueda, M ;

Yamaguchi, Y ;

Yoshida, H .

PHYSICAL REVIEW D, 1997, 55 (01) :40-53

[6]

Aubert B, 2004, PHYS REV D, V70, DOI [10.1103/PhysRevD.70.091106, 10.1103/PhysRevD.70.091104]

[7] Measurement of the branching fractions for the exclusive decays of B0 and B+ to (D)over-bar(*) D(*)K -: art. no. 092001 [J].

Aubert, B ;

Barate, R ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

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 ;

Kral, JF ;

Kukartsev, G ;

LeClerc, C ;

Levi, ME ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV .

PHYSICAL REVIEW D, 2003, 68 (09)

[8] The BABAR detector [J].

Aubert, B ;

Bazan, A ;

Boucham, A ;

Boutigny, D ;

De Bonis, I ;

Favier, J ;

Gaillard, JM ;

Jeremie, A ;

Karyotakis, Y ;

Le Flour, T ;

Lees, JP ;

Lieunard, S ;

Petitpas, P ;

Robbe, P ;

Tisserand, V ;

Zachariadou, K ;

Palano, A ;

Chen, GP ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Reinertsen, PL ;

Stugu, B ;

Abbott, B ;

Abrams, GS ;

Amerman, L ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Clark, AR ;

Dardin, S ;

Day, C ;

Dow, SF ;

Fan, Q ;

Gaponenko, I ;

Gill, MS ;

Goozen, FR ;

Gowdy, SJ ;

Gritsan, A ;

Groysman, Y ;

Hernikl, C ;

Jacobsen, RG ;

Jared, RC ;

Kadel, RW ;

Kadyk, J ;

Karcher, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 479 (01) :1-116

[9] Measurement of the ratio B(B+→Xev)/B(B0→Xev) [J].

Aubert, B. ;

Bona, M. ;

Boutigny, D. ;

Couderc, F. ;

Karyotakis, Y. ;

Lees, J. P. ;

Poireau, V. ;

Tisserand, V. ;

Zghiche, A. ;

Grauges, E. ;

Palano, A. ;

Chen, J. C. ;

Qi, N. D. ;

Rong, G. ;

Wang, P. ;

Zhu, Y. S. ;

Eigen, G. ;

Ofte, I. ;

Stugu, B. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Button-Shafer, J. ;

Cahn, R. N. ;

Charles, E. ;

Gill, M. S. ;

Groysman, Y. ;

Jacobsen, R. G. ;

Kadyk, J. A. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Kukartsev, G. ;

Lynch, G. ;

Mir, L. M. ;

Orimoto, T. J. ;

Pripstein, M. ;

Roe, N. A. ;

Ronan, M. T. ;

Wenzel, W. A. ;

Sanchez, P. del Amo ;

Barrett, M. ;

Ford, K. E. ;

Hart, A. J. ;

Harrison, T. J. ;

Hawkes, C. M. ;

Watson, A. T. ;

Held, T. ;

Koch, H. ;

Lewandowski, B. ;

Pelizaeus, M. .

PHYSICAL REVIEW D, 2006, 74 (09)

[10] NEXT-TO-LEADING ORDER RADIATIVE-CORRECTIONS TO THE DECAY B-]CCS [J].

BAGAN, E ;

BALL, P ;

FIOL, B ;

GOSDZINSKY, P .

PHYSICS LETTERS B, 1995, 351 (04) :546-554

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