Dispersive bounds on the shape of (B)over-bar→D(*)l(ν)over-bar form factors

被引：379

作者：

Caprini, I

Lellouch, L

Neubert, M

机构：

[1] Inst Atom Phys, R-76900 Bucharest, Romania

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

来源：

NUCLEAR PHYSICS B | 1998年 / 530卷 / 1-2期

关键词：

decays of bottom mesons; dispersion relations; heavy-quark effective theory;

D O I：

10.1016/S0550-3213(98)00350-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Dispersive constraints on the shape of the form factors which describe the exclusive decays (B)over-bar --> D-(*)l(nu)over-bar are derived by fully exploiting spin symmetry in the ground-state doublet of heavy-light mesons. The analysis includes all twenty B-(*) --> D-(*) semileptonic form factors. Heavy-quark symmetry, with both short-distance and 1/m(Q) corrections included, is used to provide relations between the form factors near zero recoil. Simple one-parameter functions are derived, which describe the form factors in the semileptonic region with an accuracy of better than 2%. The implications of our results for the determination of [V-cb] are discussed, (C) 1998 Elsevier Science B.V.

引用

页码：153 / 181

页数：29

共 55 条

[1] Determination of vertical bar V-cb vertical bar from the semileptonic decay B-0->D*(-)l(+)nu [J].

Abreu, P ;

Adam, W ;

Adye, T ;

Agasi, E ;

Ajinenko, I ;

Aleksan, R ;

Alekseev, GD ;

Alemany, R ;

Allport, PP ;

Almehed, S ;

Amaldi, U ;

Amato, S ;

Andreazza, A ;

Andrieux, ML ;

Antilogus, P ;

Apel, WD ;

Arnoud, Y ;

Asman, B ;

Augustin, JE ;

Augustinus, A ;

Baillon, P ;

Bambade, P ;

Barao, F ;

Barate, R ;

Barbi, M ;

Barbiellini, G ;

Bardin, DY ;

Baroncelli, A ;

Barring, O ;

Barrio, JA ;

Bartl, W ;

Bates, MJ ;

Battaglia, M ;

Baubillier, M ;

Baudot, J ;

Becks, KH ;

Begalli, M ;

Beilliere, P ;

Belokopytov, Y ;

Benvenuti, AC ;

Berggren, M ;

Bertrand, D ;

Bianchi, F ;

Bigi, M ;

Bilenky, MS ;

Billoir, P ;

Bloch, D ;

Blume, M ;

Blyth, S ;

Bolognese, T .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 71 (04) :539-553

[2] A measurement of vertical bar V-cb vertical bar using (B)over-bar(0)->D(*+)l(-)(v)over-bar(l) decays [J].

Ackerstaff, K ;

Alexander, G ;

Allison, J ;

Altekamp, N ;

Ametewee, K ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Bechtluft, J ;

Beeston, C ;

Behnke, T ;

Bell, AN ;

Bell, KW ;

Bella, G ;

Bentvelsen, S ;

Berlich, P ;

Bethke, S ;

Biebel, O ;

Biguzzi, A ;

Blobel, V ;

Bloodworth, IJ ;

Bloomer, JE ;

Bobinski, M ;

Bock, P ;

Bosch, HM ;

Boutemeur, M ;

Bouwens, BT ;

Braibant, S ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Burgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D ;

Clarke, PEL ;

Cohen, I ;

Conboy, JE .

PHYSICS LETTERS B, 1997, 395 (1-2) :128-140

[3]

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

[4]

Albrecht H, 1996, PHYS REP, V276, P223

[5]

ANASTASSOV A, 1996, 28 INT C HIGH EN PHY

[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] SEMI-LEPTONIC DECAYS OF PSEUDOSCALAR PARTICLES (M-]M'+L+VL) AND SHORT-DISTANCE BEHAVIOR OF QUANTUM CHROMODYNAMICS [J].

BOURRELY, C ;

MACHET, B ;

DERAFAEL, E .

NUCLEAR PHYSICS B, 1981, 189 (01) :157-181

[8]

Boyd CG, 1997, NUCL PHYS B, V485, P275, DOI 10.1016/S0550-3213(96)00614-1

[9]

Boyd CG, 1996, NUCL PHYS B, V461, P493, DOI 10.1016/0550-3213(95)00653-2

[10] Corrections to the Bjorken and Voloshin sum rules [J].

Boyd, CG ;

Ligeti, Z ;

Rothstein, IZ ;

Wise, MB .

PHYSICAL REVIEW D, 1997, 55 (05) :3027-3037

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