Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays -: art. no. 051103

被引：32

作者：

Acosta, D ^{[1
]}

Adelman, J

Affolder, T

Akimoto, T

Albrow, MG

Ambrose, D

Amerio, S

Amidei, D

Anastassov, A

Anikeev, K

Annovi, A

Antos, J

Aoki, M

Apollinari, G

Arisawa, T

Arguin, JF

Artikov, A

Ashmanskas, W

Attal, A

Azfar, F

Azzi-Bacchetta, P

Bacchetta, N

Bachacou, H

Badgett, W

Barbaro-Galtieri, A

Barker, GJ

Barnes, VE

Barnett, BA

Baroiant, S

Barone, M

Bauer, G

Bedeschi, F

Behari, S

Belforte, S

Bellettini, G

Bellinger, J

Ben-Haim, E

Benjamin, D

Beretvas, A

Bhatti, A

Binkley, M

Bisello, D

Bishai, M

Blair, RE

Blocker, C

Bloom, K

Blumenfeld, B

Bocci, A

Bodek, A

Bolla, G

机构：

[1] Univ Florida, Gainesville, FL 32611 USA

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[5] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy

[6] Brandeis Univ, Waltham, MA 02254 USA

[7] Univ Calif Davis, Davis, CA 95616 USA

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

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

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

[11] Univ Cantabria, CSIC, Inst fis Cantabria, Santander 39005, Spain

[12] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[13] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[14] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[15] Duke Univ, Durham, NC 27708 USA

[16] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

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

[18] Univ Geneva, CH-1211 Geneva, Switzerland

[19] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[20] Harvard Univ, Cambridge, MA 02138 USA

[21] Univ Helsinki, Helsinki Grp, Helsinki Inst Phys, FIN-00044 Helsinki, Finland

[22] Univ Helsinki, Dept Phys Sci, Div High Energy Phys, FIN-00044 Helsinki, Finland

[23] Hiroshima Univ, Higashihiroshima 724, Japan

[24] Univ Illinois, Urbana, IL 61801 USA

[25] Johns Hopkins Univ, Baltimore, MD 21218 USA

[26] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[27] KEK, High energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan

[28] Seoul Natl Univ, Seoul 151742, South Korea

[29] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea

[30] Sungkyunkwan Univ, Suwon 440746, South Korea

[31] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

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

[33] UCL, London WC1E 6BT, England

[34] MIT, Cambridge, MA 02139 USA

[35] Univ Toronto, Toronto, ON M5S 1A7, Canada

[36] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[37] Univ Michigan, Ann Arbor, MI 48109 USA

[38] Michigan State Univ, E Lansing, MI 48824 USA

[39] Inst Theoret & Expt Phys, Moscow 117259, Russia

[40] Univ New Mexico, Albuquerque, NM 87131 USA

[41] Northwestern Univ, Evanston, IL 60208 USA

[42] Ohio State Univ, Columbus, OH 43210 USA

[43] Okayama Univ, Okayama 7008530, Japan

[44] Osaka City Univ, Osaka 588, Japan

[45] Univ Oxford, Oxford OX1 3RH, England

[46] Univ Padua, Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy

[47] Univ Penn, Philadelphia, PA 19104 USA

[48] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy

[49] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[50] Univ Pittsburgh, Pittsburgh, PA 15260 USA

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.71.051103

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using 180 pb(-1) of data collected with the CDF II detector at the Tevatron, we measure the first two moments of the hadronic invariant mass-squared distribution in charmed semileptonic B decays. From these we determine the nonperturbative Heavy Quark Effective Theory parameters Lambda and lambda(1) used to relate the B meson semileptonic branching ratio to the CKM matrix element vertical bar V(ch)vertical bar. For a minimum lepton momentum of 0.7 GeV/c in the B rest frame we measure the first two moments of the D-** -> D((*))pi component to be < m(D**)(2)> = (5.83 +/- 0.16(stat) +/- 0.08(syst)) GeV2/c(4) and <(M-D**(2) - < m(D**)(2)>)(2)> = (130 +/- 0.69(stat) +/- 0.22(syst)) GeV4/c(8). Combining these with the discrete mass terms from the D and D* mesons, we find the total moments to be < M-Xc(2)> - (m) over bar (2)(D) = (0.467 +/- 0.038(stat) +/- 0.068(syst)) GeV2/c(4) and <(M-Xc(2) - < M-Xc(2)>)(2)) = (1.05 +/- 0.26(stat) +/- 0.13(syst)) GeV4/c(8), where (m) over bar (2)(D) is the spin-averaged D mass. The systematic error is dominated by the uncertainties in the world-average branching ratios used to combine the D, D*, and D** contributions. The analysis makes no assumptions about the shape or resonant structure of the D-** -> D((*))pi invariant mass distribution.

引用

页码：1 / 9

页数：9

共 19 条

[1] Measurement of the mass difference m(Ds+)-m(D+) at CDF II -: art. no. 072004 [J].

Acosta, D ;

Affolder, T ;

Ahn, MH ;

Akimoto, T ;

Albrow, MG ;

Alcorn, B ;

Alexander, C ;

Allen, D ;

Allspach, D ;

Amaral, P ;

Ambrose, D ;

Amendolia, SR ;

Amidei, D ;

Amundson, J ;

Anastassov, A ;

Anderson, J ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arguin, JF ;

Arisawa, T ;

Artikov, A ;

Asakawa, T ;

Ashmanskas, W ;

Attal, A ;

Avanzini, C ;

Azfar, F ;

Azzi-Bacchetta, P ;

Babik, M ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Bailey, S ;

Bakken, J ;

Barbaro-Galtieri, A ;

Bardi, A ;

Bari, M ;

Barker, G ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Barsotti, E ;

Basti, A ;

Bauer, G ;

Beckner, D ;

Bedeschi, F ;

Behari, S .

PHYSICAL REVIEW D, 2003, 68 (07)

[2] The CDF Silicon Vertex Trigger [J].

Ashmanskas, B ;

Barchiesi, A ;

Bardi, A ;

Bari, M ;

Baumgart, M ;

Belforte, S ;

Berryhill, J ;

Bogdan, M ;

Carosi, R ;

Cerri, A ;

Chlachidze, G ;

Culbertson, R ;

Dell'Orso, M ;

Donati, S ;

Fiori, I ;

Frisch, H ;

Galeotti, S ;

Giannetti, P ;

Glagolev, V ;

Leger, A ;

Liu, Y ;

Maruyama, T ;

Meschi, E ;

Moneta, L ;

Morsani, F ;

Nakaya, T ;

Punzi, G ;

Rescigno, M ;

Ristori, L ;

Sanders, H ;

Sarkar, S ;

Semenov, A ;

Shochet, M ;

Speer, T ;

Spinella, F ;

Vataga, H ;

Wu, X ;

Yang, UK ;

Zanello, L ;

Zanetti, AM .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 518 (1-2) :532-536

[3] Measurements of moments of the hadronic mass distribution in semileptonic B decays -: art. no. 111103 [J].

Aubert, B ;

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 ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Ronan, MT ;

Shelkov, VG ;

Wenzel, WA ;

Barrett, M ;

Ford, KE ;

Harrison, TJ ;

Hart, AJ .

PHYSICAL REVIEW D, 2004, 69 (11)

[4]

Aubert B, 2004, PHYS REV D, V69, DOI [10.1103/PhysRevD.69.111104, 10.1103/PhysRevD.69.011102, 10.1103/PhysRevD.69.032004]

[5] Heavy quark parameters and [Vcb] from spectral moments in semileptonic B decays [J].

Battaglia, M ;

Calvi, M ;

Gambino, P ;

Oyanguren, A ;

Roudeau, P ;

Salmi, L ;

Salt, J ;

Stocchi, A ;

Uraltsev, N .

PHYSICS LETTERS B, 2003, 556 (1-2) :41-49

[6] Global analysis of inclusive B decays -: art. no. 094017 [J].

Bauer, CW ;

Ligeti, Z ;

Luke, M ;

Manohar, AV ;

Trott, M .

PHYSICAL REVIEW D, 2004, 70 (09)

[7] B decay shape variables and the precision determination of |Vcb| and mb -: art. no. 054012 [J].

Bauer, CW ;

Ligeti, Z ;

Luke, M ;

Manohar, AV .

PHYSICAL REVIEW D, 2003, 67 (05)

[8]

Brun R., 1993, W5013 CERN PROGR LIB

[9] Branching fraction and photon energy spectrum for b→sγ -: art. no. 251807 [J].

Chen, S ;

Hinson, JW ;

Lee, J ;

Miller, DH ;

Pavlunin, V ;

Shibata, EI ;

Shipsey, LPJ ;

Cronin-Hennessy, D ;

Lyon, AL ;

Thorndike, EH ;

Coan, TE ;

Fadeyev, V ;

Gao, YS ;

Maravin, Y ;

Narsky, I ;

Stroynowski, R ;

Ye, J ;

Wlodek, T ;

Artuso, M ;

Benslama, K ;

Boulahouache, C ;

Bukin, K ;

Dambasuren, E ;

Majumder, G ;

Mountain, R ;

Skwarnicki, T ;

Stone, S ;

Wang, JC ;

Wolf, A ;

Kopp, S ;

Kostin, M ;

Mahmood, AH ;

Csorna, SE ;

Danko, I ;

McLean, KW ;

Xu, Z ;

Godang, R ;

Bonvicini, G ;

Cinabro, D ;

Dubrovin, M ;

McGee, S ;

Zhou, GJ ;

Bornheim, A ;

Lipeles, E ;

Pappas, SR ;

Shapiro, A ;

Sun, WM ;

Weinstein, AJ ;

Jaffe, DE ;

Mahapatra, R .

PHYSICAL REVIEW LETTERS, 2001, 87 (25)

[10] Hadronic mass moments in inclusive semileptonic B meson decays -: art. no. 251808 [J].