Ds decays to η and η′ final states:: a phenomenological analysis

被引：33

作者：

Colangelo, P ^{[1
]}

De Fazio, F ^{[1
]}

机构：

[1] Ist Nazl Fis Nucl, Sezione Bari, Bari, Italy

来源：

PHYSICS LETTERS B | 2001年 / 520卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(01)01112-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the semileptonic and nonleptonic D-s decay modes to final states with eta and eta ('). We use QCD sum rules to determine the D-s --> eta form factor f(+)(n), and a generalized factorization ansatz to compute nonleptonic decays. We propose a parameterization of possible OZI suppressed contributions producing the eta' in the final state, compatible vith current data;, such a scheme can be further constrained improving the precision of the measurement of the D, decay rates, as expected by the ongoing experiments. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：78 / 86

页数：9

共 41 条

[11] 2-BODY NONLEPTONIC DECAYS OF CHARMED MESONS [J].

BEDAQUE, P ;

DAS, A ;

MATHUR, VS .

PHYSICAL REVIEW D, 1994, 49 (01) :269-274

[12] QCD factorization for exclusive non-leptonic B-meson decays:: general arguments and the case of heavy-light final states [J].

Beneke, M ;

Buchalla, G ;

Neubert, M ;

Sachrajda, CT .

NUCLEAR PHYSICS B, 2000, 591 (1-2) :313-418

[13] QCD factorization for B → ππ decays:: Strong phases and CP violation in the heavy quark [J].

Beneke, M ;

Buchalla, G ;

Neubert, M ;

Sachrajda, CT .

PHYSICAL REVIEW LETTERS, 1999, 83 (10) :1914-1917

[14] Mixing of eta-eta' mesons in J/Psi decays into a vector and a pseudoscalar meson [J].

Bramon, A ;

Escribano, R ;

Scadron, MD .

PHYSICS LETTERS B, 1997, 403 (3-4) :339-343

[15]

Bramon A, 1999, EUR PHYS J C, V7, P271, DOI 10.1007/s100529801009

[16] Radiative VPγ transitions and η-η′ mixing [J].

Bramon, A ;

Escribano, R ;

Scadron, MD .

PHYSICS LETTERS B, 2001, 503 (3-4) :271-276

[17] MEASUREMENT OF THE D-S(+)-]ETA-L(+)NU AND D-S(+)-]ETA'L(+)NU BRANCHING RATIOS [J].

BRANDENBURG, G ;

CINABRO, D ;

LIU, T ;

SAULNIER, M ;

WILSON, R ;

YAMAMOTO, H ;

BERGFELD, T ;

EISENSTEIN, BI ;

ERNST, J ;

GLADDING, GE ;

GOLLIN, GD ;

PALMER, M ;

SELEN, M ;

THALER, JJ ;

EDWARDS, KW ;

MCLEAN, KW ;

OGG, M ;

BELLERIVE, A ;

BRITTON, DI ;

HYATT, ERF ;

JANICEK, R ;

MACFARLANE, DB ;

PATEL, PM ;

SPAAN, B ;

SADOFF, AJ ;

AMMAR, R ;

BARINGER, P ;

BEAN, A ;

BESSON, D ;

COPPAGE, D ;

COPTY, N ;

DAVIS, R ;

HANCOCK, N ;

KOTOV, S ;

KRAVCHENKO, I ;

KWAK, N ;

KUBOTA, Y ;

LATTERY, M ;

MOMAYEZI, M ;

NELSON, JK ;

PATTON, S ;

POLING, R ;

SAVINOV, V ;

SCHRENK, S ;

WANG, R ;

ALAM, MS ;

KIM, IJ ;

LING, Z ;

MAHMOOD, AH ;

ONEILL, JJ .

PHYSICAL REVIEW LETTERS, 1995, 75 (21) :3804-3808

[18] DECAY OF UPSILON INTO PHOTONS AND GLUONS [J].

BRODSKY, SJ ;

DEGRAND, TA ;

HORGAN, RR ;

COYNE, DG .

PHYSICS LETTERS B, 1978, 73 (02) :203-206

[19] Charm nonleptonic decays and final state interactions [J].

Buccella, F ;

Lusignoli, M ;

Pugliese, A .

PHYSICS LETTERS B, 1996, 379 (1-4) :249-256

[20] 1/N EXPANSION FOR EXCLUSIVE AND INCLUSIVE CHARM DECAYS [J].

BURAS, AJ ;

GERARD, JM ;

RUCKL, R .

NUCLEAR PHYSICS B, 1986, 268 (01) :16-48

← 1 2 3 4 5 →