Measurements of vertical bar V-cb vertical bar form factors and branching fractions in the decays (B)over-bar(0)->D(*+)l(-)(nu)over-bar(l) and (B)over-bar(0)->D(+)l(-)(nu)over-bar(l)

被引：82

作者：

Buskulic, D

DeBonis, I

Decamp, D

Ghez, P

Goy, C

Lees, JP

Lucotte, A

Minard, MN

Nief, JY

Odier, P

Pietrzyk, B

Casado, MP

Chmeissani, M

Comas, P

Crespo, JM

Delfino, M

Efthymiopoulos, I

Fernandez, E

FernandezBosman, M

Garrido, L

Juste, A

Martinez, M

Orteu, S

Padilla, C

Park, IC

Pascual, A

Perlas, JA

Riu, I

Sanchez, F

Teubert, F

Colaleo, A

Creanza, D

dePalma, M

Gelao, G

Girone, M

Iaselli, G

Maggi, G

Maggi, M

Marinelli, N

Nuzzo, S

Ranieri, A

Raso, G

Ruggieri, F

Selvaggi, G

Silvestris, L

Tempesta, P

Tricomi, A

Zito, G

Huang, X

Lin, J

机构：

[1] UNIV AUTONOMA BARCELONA, INST FIS ALTES ENERGIES, BELLATERRA 08193, BARCELONA, SPAIN

[2] IST NAZL FIS NUCL, SEZ BARI, DIPARTIMENTO FIS, I-70126 BARI, ITALY

[3] ACAD SINICA, INST HIGH ENERGY PHYS, BEIJING, PEOPLES R CHINA

[4] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[5] UNIV CLERMONT FERRAND, IN2P3 CNRS, PHYS CORPUSCULAIRE LAB, F-63177 CLERMONT FERRAND, FRANCE

[6] NIELS BOHR INST, DK-2100 COPENHAGEN, DENMARK

[7] DEMOCRITOS NUCL RES CTR, ATHENS, GREECE

[8] ECOLE POLYTECH, IN2P3 CNRS, LAB PHYS NUCL & HAUTES ENERGIES, F-91128 PALAISEAU, FRANCE

[9] UNIV EDINBURGH, DEPT PHYS, EDINBURGH EH9 3JZ, MIDLOTHIAN, SCOTLAND

[10] UNIV FLORENCE, IST NAZL FIS NUCL, SEZ FIRENZE, DIPARTIMENTO FIS, I-50125 FLORENCE, ITALY

[11] FLORIDA STATE UNIV, SUPERCOMP COMPUTAT RES INST, TALLAHASSEE, FL 32306 USA

[12] IST NAZL FIS NUCL, LAB NAZL FRASCATI, I-00044 FRASCATI, ITALY

[13] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW G12 8QQ, LANARK, SCOTLAND

[14] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, D-69120 HEIDELBERG, GERMANY

[15] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, DEPT PHYS, LONDON SW7 2BZ, ENGLAND

[16] UNIV INNSBRUCK, INST EXPT PHYS, A-6020 INNSBRUCK, AUSTRIA

[17] UNIV LANCASTER, DEPT PHYS, LANCASTER LA1 4YB, ENGLAND

[18] UNIV MAINZ, INST PHYS, D-55099 MAINZ, GERMANY

[19] FAC SCI LUMINY, IN2P3 CNRS, CTR PHYS PARTICULES, F-13288 MARSEILLE, FRANCE

[20] UNIV MILAN, DIPARTIMENTO FIS, I-20133 MILAN, ITALY

[21] IST NAZL FIS NUCL, SEZ MILANO, I-20133 MILAN, ITALY

[22] MAX PLANCK INST PHYS & ASTROPHYS, WERNER HEISENBERG INST PHYS, D-80805 MUNICH, GERMANY

[23] UNIV PARIS 11, IN2P3 CNRS, ACCELERATEUR LINEAIRE LAB, F-91405 ORSAY, FRANCE

[24] UNIV PISA, IST NAZL FIS NUCL, SEZ PISA, DIPARTIMENTO FIS, I-56010 PISA, ITALY

[25] SCUOLA NORMALE SUPER PISA, I-56010 PISA, ITALY

[26] UNIV LONDON ROYAL HOLLOWAY & BEDFORD NEW COLL, DEPT PHYS, EGHAM TW20 0EX, SURREY, ENGLAND

[27] RUTHERFORD APPLETON LAB, PARTICLE PHYS DEPT, DIDCOT OX11 0QX, OXON, ENGLAND

[28] CTR ETUD SACLAY, SERV PHYS PARTICULES, DAPNIA, CEA, F-91191 GIF SUR YVETTE, FRANCE

[29] UNIV CALIF SANTA CRUZ, INST PARTICLE PHYS, SANTA CRUZ, CA 95064 USA

[30] UNIV SHEFFIELD, DEPT PHYS, SHEFFIELD S3 7RH, S YORKSHIRE, ENGLAND

[31] UNIV SIEGEN, FACHBEREICH PHYS, D-57068 SIEGEN, GERMANY

[32] UNIV TRIESTE, DIPARTIMENTO FIS, I-34127 TRIESTE, ITALY

[33] IST NAZL FIS NUCL, SEZ TRIESTE, I-34127 TRIESTE, ITALY

[34] UNIV WASHINGTON, SEATTLE, WA 98195 USA

[35] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

[36] IST NAZL FIS NUCL, SEZ CATANIA, DIPARTIMENTO FIS, I-95129 CATANIA, ITALY

[37] UNIV TURIN, IST FIS GEN, TURIN, ITALY

[38] CNR, IST COSMOGEOFIS, I-10133 TURIN, ITALY

[39] UNIV BARCELONA, E-08028 BARCELONA, SPAIN

[40] KANGNUNG NATL UNIV, KANGNUNG, SOUTH KOREA

[41] CERN, CH-1211 GENEVA 23, SWITZERLAND

[42] UNIV SASSARI, IST MATEMAT & FIS, I-07100 SASSARI, ITALY

[43] SUNGKYUNKWAN UNIV, SUWON 440746, SOUTH KOREA

来源：

PHYSICS LETTERS B | 1997年 / 395卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)00071-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two samples of exclusive semileptonic decays, 579 (B) over bar(0) --> D*(+)l(-)(v) over bar(l) events and 261 (B) over bar(0) --> D(+)l(-)(v) over bar(l) events, are selected from approximately 3.9 million hadronic Z decays collected by the ALEPH detector at LEP. From the reconstructed differential decay rate of each sample, the product of the hadronic form factor F(omega) at zero recoil of the D-(*+) meson and the CKM matrix element \V-cb\ are measured to be FD*+(1)\V-cb\ = (31.9 +/- 1.8(stat) +/- 1.9(syst)) x 10(-3), FD+(1)\(V-cb\ = (27.8 +/- 6.8(stat) +/- 6.5(syst)) x 10(-3). The ratio of the form factors FD+(1) and FD*+(1) is measured to be FD+(1)/FD*+(1) = 0.87 +/- 0.22(stat) +/- 0.21(syst). A value of \V-cb\ is extracted from the two samples, using theoretical constraints on the slope and curvature of the hadronic form factors and their normalization at zero recoil, with the result \V-cb\ = (34.4 +/- 1.6(stat)+/- 2.3(syst) +/- 1.4(th)) x 10(-3). The branching fractions are measured from the two integrated spectra to be Br((B) over bar(0) --> D(*+)l(-)(v) over bar(l)) = (5.53 +/- 0.26(stat) +/- 0.52(syst))%, Br((B) over bar(0) --> D(+)l(-)(v) over bar(l)) = (2.35 +/- 0.20(stat) +/- 0.44(syst))%. (C) 1997 Elsevier Science B.V.

引用

页码：373 / 387

页数：15

共 25 条

[1]

ABREU P, 1996, UNPUB Z PHYS C

[2] MEASUREMENT OF THE DECAY B0-]D-STAR-L+NU [J].

ALBRECHT, H ;

ANDAM, AA ;

BINDER, U ;

BOCKMANN, P ;

GLASER, R ;

HARDER, G ;

NIPPE, A ;

SCHAFER, M ;

SCHMIDTPARZEFALL, W ;

SCHRODER, H ;

SCHULZ, HD ;

WURTH, R ;

YAGIL, A ;

DONKER, JP ;

DRESCHER, A ;

KAMP, D ;

KOLANOSKI, H ;

MATTHIESEN, U ;

SCHECK, H ;

SPAAN, B ;

SPENGLER, J ;

WEGENER, D ;

GABRIEL, JC ;

RUF, T ;

SCHUBERT, KR ;

STIEWE, J ;

STRAHL, K ;

WALDI, R ;

EDWARDS, KW ;

FRISKEN, WR ;

GILKINSON, DJ ;

GINGRICH, DM ;

KAPITZA, H ;

KIM, PCH ;

KUTSCHKE, R ;

MACFARLANE, DB ;

MCKENNA, JA ;

MCLEAN, KW ;

NILSSON, AW ;

ORR, RS ;

PADLEY, P ;

PARSONS, JA ;

PATEL, PM ;

PRENTICE, JD ;

SEYWERD, HCJ ;

SWAIN, JD ;

TSIPOLITIS, G ;

YOON, TS ;

YUN, JC ;

AMMAR, R .

PHYSICS LETTERS B, 1987, 197 (03) :452-456

[3]

ALBRECHT H, 1993, Z PHYS C PART FIELDS, V57, P533

[4] A STUDY OF (B)OVER-BAR-(0)-]D-ASTERISK+L-(NU)OVER-BAR AND B(0)(B)OVER-BAR-(0) MIXING USING PARTIAL D-ASTERISK+ RECONSTRUCTION [J].

ALBRECHT, H ;

EHRLICHMANN, H ;

HAMACHER, T ;

HOFMANN, RP ;

KIRCHHOFF, T ;

NAU, A ;

NOWAK, S ;

SCHRODER, H ;

SCHULZ, HD ;

WALTER, M ;

WURTH, R ;

HAST, C ;

KAPITZA, H ;

KOLANOSKI, H ;

KOSCHE, A ;

LANGE, A ;

LINDNER, A ;

MANKEL, R ;

SCHIEBER, M ;

SIEGMUND, T ;

SPAAN, B ;

THURN, H ;

TOPFER, D ;

WEGENER, D ;

ECKSTEIN, P ;

WALDI, R ;

PAULINI, M ;

REIM, K ;

WEGENER, H ;

ECKMANN, R ;

MUNDT, R ;

OEST, T ;

REINER, R ;

SCHMIDTPARZEFALL, W ;

STIEWE, J ;

WERNER, S ;

EHRET, K ;

HOFMANN, W ;

HUPPER, A ;

KHAN, S ;

KNOPFLE, KT ;

SEEGER, M ;

SPENGLER, J ;

BRITTON, DI ;

CHARLESWORTH, CEK ;

EDWARDS, KW ;

HYATT, ERF ;

KRIEGER, P ;

MACFARLANE, DB ;

PATEL, PM .

PHYSICS LETTERS B, 1994, 324 (02) :249-254

[5] MEASUREMENT OF THE DECAY B- -] D(STAR0)L(-)NU-BAR [J].

ALBRECHT, H ;

EHRLICHMANN, H ;

HAMACHER, T ;

KRUGER, A ;

NAU, A ;

NIPPE, A ;

NOWAK, S ;

REIDENBACH, M ;

SCHAFER, M ;

SCHRODER, H ;

SCHULZ, HD ;

WALTER, M ;

WURTH, R ;

APPUHN, RD ;

HAST, C ;

HERRERA, G ;

KOLANOSKI, H ;

LANGE, A ;

LINDNER, A ;

MANKEL, R ;

SCHIEBER, M ;

SIEGMUND, T ;

SPAAN, B ;

THURN, H ;

TOPFER, D ;

WALTHER, A ;

WEGENER, D ;

PAULINI, M ;

REIM, K ;

WEGENER, H ;

MUNDT, R ;

OEST, T ;

SCHMIDTPARZEFALL, W ;

FUNK, W ;

STIEWE, J ;

WERNER, S ;

EHRET, K ;

HOLSCHER, A ;

HOFMANN, W ;

HUPPER, A ;

KHAN, S ;

KNOPFLE, KT ;

SPENGLER, J ;

BRITTON, DI ;

CHARLESWORTH, CEK ;

EDWARDS, KW ;

KAPITZA, H ;

KRIEGER, P ;

MACFARLANE, DB ;

PATEL, PM .

PHYSICS LETTERS B, 1992, 275 (1-2) :195-201

[6] MEASUREMENT OF THE (B)OVER-BAR-]D-ASTERISK-L-(NU)OVER-BAR BRANCHING FRACTIONS AND VERTICAL-BAR-V-CB-VERTICAL-BAR [J].

BARISH, B ;

CHADHA, M ;

CHAN, S ;

COWEN, DF ;

EIGEN, G ;

MILLER, JS ;

OGRADY, C ;

URHEIM, J ;

WEINSTEIN, AJ ;

ACOSTA, D ;

ATHANAS, M ;

MASEK, G ;

PAAR, HP ;

GRONBERG, J ;

KUTSCHKE, R ;

MENARY, S ;

MORRISON, RJ ;

NAKANISHI, S ;

NELSON, HN ;

NELSON, TK ;

QIAO, C ;

RICHMAN, JD ;

RYD, A ;

TAJIMA, H ;

SPERKA, D ;

WITHERELL, MS ;

PROCARIO, M ;

BALEST, R ;

CHO, K ;

DAOUDI, M ;

FORD, WT ;

JOHNSON, DR ;

LINGEL, K ;

LOHNER, M ;

RANKIN, P ;

SMITH, JG ;

ALEXANDER, JP ;

BEBEK, C ;

BERKELMAN, K ;

BLOOM, K ;

BROWDER, TE ;

CASSEL, DG ;

CHO, HA ;

COFFMAN, DM ;

CROWCROFT, DS ;

DRELL, PS ;

EHRLICH, R ;

GAIDAREV, P ;

GALIK, RS ;

GARCIASCIVERES, M .

PHYSICAL REVIEW D, 1995, 51 (03) :1014-1033

[7] Particles and field .1. Review of particle physics [J].

Barnett, RM ;

Carone, CD ;

Groom, DE ;

Trippe, TG ;

Wohl, CG ;

Armstrong, B ;

Gee, PS ;

Wagman, GS ;

James, F ;

Mangano, M ;

Monig, K ;

Montanet, L ;

Feng, JL ;

Murayama, H ;

Hernandez, JJ ;

Manohar, A ;

AguilarBenitez, M ;

Caso, C ;

Crawford, RL ;

Roos, M ;

Tornqvist, NA ;

Hayes, KG ;

Hagiwara, K ;

Nakamura, K ;

Tanabashi, M ;

Olive, K ;

Honscheid, K ;

Burchat, PR ;

Shrock, RE ;

Eidelman, S ;

Schindler, RH ;

Gurtu, A ;

Hikasa, K ;

Conforto, G ;

Workman, RL ;

Grab, C ;

Amsler, C .

PHYSICAL REVIEW D, 1996, 54 (01) :1-+

[8] STUDY OF THE DECAY BBARO-]D-STAR+L-VBAR [J].

BORTOLETTO, D ;

GOLDBERG, M ;

HORWITZ, N ;

MESTAYER, MD ;

MONETI, GC ;

SHARMA, V ;

SHIPSEY, IPJ ;

SKWARNICKI, T ;

CSORNA, SE ;

LETSON, T ;

BROCK, IC ;

FERGUSON, T ;

ALEXANDER, J ;

ARTUSO, M ;

BEBEK, C ;

BERKELMAN, K ;

CASSEL, DG ;

CHEU, E ;

COFFMAN, DM ;

CRAWFORD, G ;

DEWIRE, JW ;

DRELL, PS ;

EHRLICH, R ;

GALIK, RS ;

GITTELMAN, B ;

GRAY, SW ;

HALLING, AM ;

HARTILL, DL ;

HELTSLEY, BK ;

KANDASWAMY, J ;

KOWALEWSKI, R ;

KREINICK, DL ;

KUBOTA, Y ;

LEWIS, JD ;

MISTRY, NB ;

MUELLER, J ;

NAMJOSHI, R ;

NANDI, S ;

NORDBERG, E ;

OGRADY, C ;

PETERSON, D ;

PISHARODY, M ;

RILEY, D ;

SAPPER, M ;

SILVERMAN, A ;

STONE, S ;

WORDEN, H ;

WORRIS, M ;

SADOFF, AJ ;

AVERY, P .

PHYSICAL REVIEW LETTERS, 1989, 63 (16) :1667-1670

[9] THE OPAL SILICON STRIP MICROVERTEX DETECTOR WITH 2 COORDINATE READOUT [J].

ALLPORT, PP ;

BATLEY, JR ;

BECK, GA ;

CARTER, AA ;

CARTER, JR ;

DEJONG, SJ ;

SILVA, EDE ;

DUBOSCQ, JE ;

DUNWOODY, UC ;

GIBSON, V ;

GLESSING, W ;

GOLDEY, PR ;

GOODRICK, MJ ;

HAMMARSTROM, R ;

HANSON, GG ;

HONMA, AK ;

HUMBERT, R ;

JACOB, F ;

JIMENEZ, M ;

KOETKE, DS ;

KRAL, JF ;

KYBERD, P ;

LAUBER, JA ;

LEROY, C ;

MARTIN, AJ ;

MARTIN, JP ;

MIR, R ;

MOISAN, C ;

PETRY, D ;

PRITCHARD, TW ;

RUNOLFSSON, O ;

RUST, DR ;

SELLER, P ;

SHEARS, TG ;

VOILLAT, D ;

YURKO, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 346 (03) :476-495

[10] MEASUREMENT OF THE B-]TAU(-)(NU)OVER-BAR-(TAU)X BRANCHING RATIO AND AN UPPER LIMIT ON B--]TAU(-)(NU)OVER-BAR-(TAU) [J].

BUSKULIC, D ;

CASPER, D ;

DEBONIS, I ;

DECAMP, D ;

GHEZ, P ;

GOY, C ;

LEES, JP ;

MINARD, MN ;

ODIER, P ;

PIETRZYK, B ;

ARIZTIZABAL, F ;

CHMEISSANI, M ;

CRESPO, JM ;

EFTHYMIOPOULOS, I ;

FERNANDEZ, E ;

FERNANDEZBOSMAN, M ;

GAITAN, V ;

GARRIDO, L ;

MARTINEZ, M ;

ORTEU, S ;

PACHECO, A ;

PADILLA, C ;

PALLA, F ;

PASCUAL, A ;

PERLAS, JA ;

SANCHEZ, F ;

TEUBERT, F ;

CREANZA, D ;

DEPALMA, M ;

FARILLA, A ;

IASELLI, G ;

MAGGI, G ;

MARINELLI, N ;

NATALI, S ;

NUZZO, S ;

RANIERI, A ;

RASO, G ;

ROMANO, F ;

RUGGIERI, F ;

SELVAGGI, G ;

SILVESTRIS, L ;

TEMPESTA, P ;

ZITO, G ;

HUANG, X ;

LIN, J ;

OUYANG, Q ;

WANG, T ;

XIE, Y ;

XU, R ;

XUE, S .

PHYSICS LETTERS B, 1995, 343 (1-4) :444-452

← 1 2 3 →