Decay constants and mixing parameters in a relativistic model for a q(Q)over-bar system

被引：4

作者：

Ahmady, MR ^{[1
]}

Mendel, RR ^{[1
]}

Talman, JD ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT APPL MATH,LONDON N6A 5B7,ENGLAND

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.55.419

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We extend our recent work, in which the Dirac equation with a ''(asymptotically free) Coulomb + (Lorentz scalar gamma(0) sigma r) linear'' potential is used to obtain the light quark wave function for q (Q) over bar mesons in the limit m(Q)-->infinity to estimate the decay constant f(P) and the mixing parameter B of the pseudoscalar mesons. We compare our results for the evolution of f(P) and B with the meson mass M(P), to the nonrelativistic formulas for these quantities and show that there is a significant correction in the subasymptotic region. For sigma=0.14 GeV-2 and Lambda(<(MS)over bar>)=0.240 GeV we obtain f(D)=0.371, f(DS)=0.442, f(B)=0.301, f(Bs)=0.368 GeV, and B-D=0.88, B-Ds=0.89, B-B=0.95, B-Bs=0.96, and B-K=0.60.

引用

页码：419 / 422

页数：4

共 21 条

[1] 1ST MEASUREMENT OF GAMMA(D(S)(+)-]MU+NU)/GAMMA(D(S)(+)-]PHI-PI+) [J].

ACOSTA, D ;

ATHANAS, M ;

MASEK, G ;

PAAR, H ;

BEAN, A ;

GRONBERG, J ;

KUTSCHKE, R ;

MENARY, S ;

MORRISON, RJ ;

NAKANISHI, S ;

NELSON, HN ;

NELSON, TK ;

RICHMAN, JD ;

RYD, A ;

TAJIMA, H ;

SCHMIDT, D ;

SPERKA, D ;

WITHERELL, MS ;

PROCARIO, M ;

YANG, S ;

BALEST, R ;

CHO, K ;

DAOUDI, M ;

FORD, WT ;

JOHNSON, DR ;

LINGEL, K ;

LOHNER, M ;

RANKIN, P ;

SMITH, JG ;

ALEXANDER, JP ;

BEBEK, C ;

BERKELMAN, K ;

BESSON, D ;

BROWDER, TE ;

CASSEL, DG ;

CHO, HA ;

COFFMAN, DM ;

DRELL, PS ;

EHRLICH, R ;

GALIK, RS ;

GARCIASCIVERES, M ;

GEISER, B ;

GITTELMAN, B ;

GRAY, SW ;

HARTILL, DL ;

HELTSLEY, BK ;

JONES, CD ;

JONES, SL ;

KANDASWAMY, J ;

KATAYAMA, N .

PHYSICAL REVIEW D, 1994, 49 (11) :5690-5700

[2] SEARCH FOR THE DECAY D+-]MU+V-MU AND AN UPPER LIMIT ON THE PSEUDOSCALAR DECAY CONSTANT [J].

ADLER, J ;

BECKER, JJ ;

BLAYLOCK, GT ;

BOLTON, T ;

BROWN, JS ;

BUNNELL, KO ;

BURNETT, TH ;

CASSELL, RE ;

COFFMAN, D ;

COOK, V ;

COWARD, DH ;

DORFAN, DE ;

DUBOIS, GP ;

DUNCAN, AL ;

EIGEN, G ;

EINSWEILER, KF ;

EISENSTEIN, BI ;

FREESE, T ;

GLADDING, G ;

GRAB, C ;

GRANCAGNOLO, F ;

HAMILTON, RP ;

HAUSER, J ;

HEUSCH, CA ;

HITLIN, DG ;

IZEN, JM ;

KOPKE, L ;

LI, A ;

LOCKMAN, WS ;

MALLIK, U ;

MATTHEWS, CG ;

MIR, R ;

MOCKETT, PM ;

MOZLEY, RF ;

NEMATI, B ;

ODIAN, A ;

PARRISH, L ;

PARTRIDGE, R ;

PERRIER, J ;

PITMAN, D ;

PLAETZER, SA ;

RICHMAN, JD ;

SADROZINSKI, HFW ;

SCARLATELLA, M ;

SCHALK, TL ;

SCHINDLER, RH ;

SEIDEN, A ;

SIMOPOULOS, C ;

SPADAFORA, AL ;

STOCKDALE, IE .

PHYSICAL REVIEW LETTERS, 1988, 60 (14) :1375-1378

[3] ISGUR-WISE FUNCTION IN A RELATIVISTIC MODEL FOR A Q(Q)OVER-BAR SYSTEM [J].

AHMADY, MR ;

MENDEL, RR ;

TALMAN, JD .

PHYSICAL REVIEW D, 1995, 52 (01) :254-263

[4] 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

[5] CONSTRAINTS ON FORM-FACTORS FOR EXCLUSIVE SEMILEPTONIC HEAVY TO LIGHT MESON DECAYS [J].

BOYD, CG ;

GRINSTEIN, B ;

LEBED, RF .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4603-4606

[6] THE INTERQUARK POTENTIAL - A QCD LATTICE ANALYSIS [J].

BORN, KD ;

LAERMANN, E ;

SOMMER, R ;

WALSH, TF ;

ZERWAS, PM .

PHYSICS LETTERS B, 1994, 329 (2-3) :325-331

[7] KL-KS MASS DIFFERENCE AND QUARK MODELS [J].

COLIC, P ;

GUBERINA, B ;

TADIC, D ;

TRAMPETIC, J .

NUCLEAR PHYSICS B, 1983, 221 (01) :141-152

[8] THE PION AND AN IMPROVED STATIC BAG MODEL [J].

DONOGHUE, JF ;

JOHNSON, K .

PHYSICAL REVIEW D, 1980, 21 (07) :1975-1985

[9] Heavy quark spectroscopy and matrix elements: A lattice study using the static approximation [J].

Ewing, AK ;

Flynn, JM ;

Sachrajda, CT ;

Stella, N ;

Wittig, H ;

Bowler, KC ;

Kenway, RD ;

Mehegan, J ;

Richards, DG ;

Michael, C .

PHYSICAL REVIEW D, 1996, 54 (05) :3526-3545

[10] RARE DECAY MODES OF K MESONS IN GAUGE THEORIES [J].

GAILLARD, MK ;

LEE, BW .

PHYSICAL REVIEW D, 1974, 10 (03) :897-916

← 1 2 3 →