Ds decays into φ and f0(980) mesons -: art. no. 036001

被引：27

作者：

Bediaga, I

Nielsen, M

机构：

[1] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.68.036001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the nonleptonic and semileptonic decays of D-s mesons into phi and f(0)(980) mesons. QCD sum rules are used to calculate the form factors associated with these decays and the corresponding decay rates. On the basis of data on D-s(+)-->pi(+)pi(+)pi(-), which goes dominantly via the transition D-s(+)-->pi(+)f(0)(980), we conclude that there is space for a sizeable light quark component on f(0)(980).

引用

页数：9

共 26 条

[1] Study of the Ds+ → π-π+π+ decay and measurement of f0 masses and widths [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Devmal, S ;

Fernandez, A ;

Fox, GF ;

Gagnon, P ;

Gobel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

Magnin, J ;

Massafferri, A ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRT ;

Mihalcea, D ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :765-769

[2]

ANISOVICH VV, HEPPH0302137

[3] FORM-FACTORS OF SEMILEPTONIC D-DECAYS FROM QCD SUM-RULES [J].

BALL, P ;

BRAUN, VM ;

DOSCH, HG .

PHYSICAL REVIEW D, 1991, 44 (11) :3567-3581

[4]

BROWN N, 1995, DAPHINE PHYSICS HDB, P447

[5] Weak decays beyond leading logarithms [J].

Buchalla, G ;

Buras, AJ ;

Lautenbacher, ME .

REVIEWS OF MODERN PHYSICS, 1996, 68 (04) :1125-1244

[6] Scalar mesons above and below 1 GeV [J].

Close, FE ;

Törnqvist, NA .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2002, 28 (10) :R249-R267

[7] SCALAR MESONS IN PHI RADIATIVE DECAY - THEIR IMPLICATIONS FOR SPECTROSCOPY AND FOR STUDIES OF CP VIOLATION AT PHI FACTORIES [J].

CLOSE, FE ;

ISGUR, N ;

KUMANO, S .

NUCLEAR PHYSICS B, 1993, 389 (02) :513-533

[8] Coupling g f0K+K- and the structure of f0(980) [J].

Colangelo, P ;

De Fazio, F .

PHYSICS LETTERS B, 2003, 559 (1-2) :49-59

[9] Ds decays to η and η′ final states:: a phenomenological analysis [J].

Colangelo, P ;

De Fazio, F .

PHYSICS LETTERS B, 2001, 520 (1-2) :78-86

[10]

COLANGELO P, 2001, FRONTIER PARTICLE PH

← 1 2 3 →