CONSTRAINTS ON FORM-FACTORS FOR EXCLUSIVE SEMILEPTONIC HEAVY TO LIGHT MESON DECAYS

被引：253

作者：

BOYD, CG

GRINSTEIN, B

LEBED, RF

机构：

[1] Department of Physics, University of California, San Diego

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.74.4603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use rigorous QCD dispersion relations to derive model-independent bounds on the B̄→πlν̄, D→πl̄ν, and D→K̄l̄ν form factors. These bounds are particularly restrictive when the value of the observable form factor at one or more kinematic points is assumed. With reasonable assumptions we find fB≤195 MeV and that the shape of the form factor becomes severely constrained. These constraints are useful both for model discrimination and for model-insensitive extraction of Cabibbo-Kobayashi-Maskawa mixing parameters. © 1995 The American Physical Society.

引用

页码：4603 / 4606

页数：4

共 34 条

[1] MESON SPECTROSCOPY AND DECAY CONSTANTS WITH WILSON FERMIONS AT BETA = 6.4 [J].

ABADA, A ;

ALLTON, CR ;

BOUCAUD, P ;

CARPENTER, DB ;

CRISAFULLI, M ;

GALAND, J ;

GUSKEN, S ;

MARTINELLI, G ;

PENE, O ;

SACHRAJDA, CT ;

SARNO, R ;

SCHILLING, K ;

SOMMER, R .

NUCLEAR PHYSICS B, 1992, 376 (01) :172-198

[2]

ALBRECHT H, 1992, Z PHYS C PART FIELDS, V54, P1, DOI 10.1007/BF01881703

[3] A HIGH STATISTICS LATTICE CALCULATION OF F(B)(STATIC) AT BETA=6.2 USING THE CLOVER ACTION [J].

ALLTON, CR ;

CRISAFULLI, M ;

LUBICZ, V ;

MARTINELLI, G ;

SALINA, G ;

VLADIKAS, A ;

BARTOLONI, A ;

BATTISTA, C ;

CABASINO, S ;

CABIBBO, N ;

MARZANO, F ;

PAOLUCCI, PS ;

PECH, J ;

RAPUANO, F ;

SARNO, R ;

TODESCO, GM ;

TORELLI, M ;

TROSS, W ;

VICINI, P .

PHYSICS LETTERS B, 1994, 326 (3-4) :295-302

[4] RADIATIVE-D-ASTERISK DECAY USING HEAVY QUARK AND CHIRAL SYMMETRY [J].

AMUNDSON, JF ;

BOYD, CG ;

JENKINS, E ;

LUKE, M ;

MANOHAR, AV ;

ROSNER, JL ;

SAVAGE, MJ ;

WISE, MB .

PHYSICS LETTERS B, 1992, 296 (3-4) :415-419

[5] OBSERVATION OF THE MUONIC DECAY, DS+/--]MU+/-NU-MU [J].

AOKI, S ;

BARONI, G ;

BISI, V ;

BRESLIN, AC ;

CATANESI, MG ;

CHIBA, K ;

DAVIS, DH ;

DILIBERTO, S ;

ESTEN, MJ ;

GERKE, C ;

HOSHINO, K ;

KAZUNO, M ;

KOBAYASHI, M ;

KODAMA, K ;

MAEDA, Y ;

MARZARICHIESA, A ;

MAZZONI, MA ;

MEDDI, F ;

MINAKAWA, F ;

MIYANISHI, M ;

MUCIACCIA, MT ;

NAKAMURA, M ;

NAKAZAWA, K ;

NIU, K ;

NIWA, K ;

POULARD, G ;

RADICIONI, E ;

RAMELLO, L ;

ROMANO, G ;

ROSA, G ;

RUGGIERI, F ;

SARTORI, MS ;

SASAKI, H ;

SATO, Y ;

SGARBI, C ;

SHIBUYA, H ;

SIMONE, S ;

TAJIMA, H ;

TASAKA, S ;

TEZUKA, I ;

TOVEE, DN ;

USHIDA, N ;

YANAGISAWA, Y .

PROGRESS OF THEORETICAL PHYSICS, 1993, 89 (01) :131-138

[6]

AOKI S, CLEO02

[7] MEASUREMENT OF THE MASS AND WIDTH OF THE CHARMED MESON D-ASTERISK+ (2010) [J].

BARLAG, S ;

BECKER, H ;

BOZEK, A ;

BOHRINGER, T ;

BOSMAN, M ;

CASTILLO, V ;

CHABAUD, V ;

DAMERELL, C ;

DAUM, C ;

DIETL, H ;

GILLMAN, A ;

GILMORE, R ;

GOOCH, T ;

GORLICH, L ;

GRAS, P ;

HAJDUK, Z ;

HIGON, E ;

KELSEY, DP ;

KLANNER, R ;

KWAN, S ;

LUCKING, B ;

LUTJENS, G ;

LUTZ, G ;

MALOS, J ;

MANNER, W ;

NEUGEBAUER, E ;

PALKA, H ;

PEPE, M ;

RICHARDSON, J ;

RYBICKI, K ;

SEEBRUNNER, HJ ;

STIERLIN, U ;

TIECKE, HG ;

WALTERMANN, G ;

WATTS, S ;

WEILHAMMER, P ;

WICKENS, F ;

WIGGERS, LW ;

WITEK, M ;

ZELUDZIEWICZ, T .

PHYSICS LETTERS B, 1992, 278 (04) :480-484

[8] LATTICE COMPUTATION OF THE DECAY CONSTANTS OF B-MESONS AND D-MESONS [J].

BERNARD, CW ;

LABRENZ, JN ;

SONI, A .

PHYSICAL REVIEW D, 1994, 49 (05) :2536-2566

[9]

BERNARD CW, WASHUHEP9437 REP

[10] SIMPLE HADRONIC MATRIX-ELEMENTS WITH WILSON VALENCE QUARKS AND DYNAMICAL STAGGERED FERMIONS AT 6/G2=5.6 [J].

BITAR, KM ;

DEGRAND, T ;

EDWARDS, R ;

GOTTLIEB, S ;

HELLER, UM ;

KENNEDY, AD ;

KOGUT, JB ;

KRASNITZ, A ;

LIU, W ;

OGILVIE, MC ;

RENKEN, RL ;

ROSSI, P ;

SINCLAIR, DK ;

SUGAR, RL ;

TOUSSAINT, D ;

WANG, KC .

PHYSICAL REVIEW D, 1993, 48 (01) :370-387

← 1 2 3 4 →