Can the X(4350) narrow structure be a 1(-+) exotic state?


Autoria(s): ALBUQUERQUE, Raphael Moreira de; DIAS, Jorgivan M.; NIELSEN, Marina
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2010

Resumo

Using the QCD sum rules we test if the new narrow structure, the X(4350) recently observed by the Belle Collaboration, can be described as a J(PC) = 1(-+) exotic D(s)(*)D(s0)(*) molecular state. We consider the contributions of condensates up to dimension eight, we work at leading order in alpha(s) and we keep terms which are linear in the strange quark mass Ins. The mass obtained for such state is m(Ds*Ds0*) = (5.05 +/- 0.19) GeV. We also consider a molecular 1(-+), D(s)(*)D(s0)(*); current and we obtain m(D*D0*) = (4.92 +/- 0.08) GeV. We conclude that it is not possible to describe the X(4350) structure as a 1(-+) D(s)(*)D(s0)(*) molecular state. (C) 2010 Elsevier B.V. All rights reserved.

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

FAPESP

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

CNPq-Brazil

Identificador

PHYSICS LETTERS B, v.690, n.2, p.141-144, 2010

0370-2693

http://producao.usp.br/handle/BDPI/29115

10.1016/j.physletb.2010.05.024

http://dx.doi.org/10.1016/j.physletb.2010.05.024

Idioma(s)

eng

Publicador

ELSEVIER SCIENCE BV

Relação

Physics Letters B

Direitos

restrictedAccess

Copyright ELSEVIER SCIENCE BV

Palavras-Chave #Non-perturbative methods #Exotic-charmonium states #QCD sum rules #QCD SUM-RULES #TAU-DECAYS #SYMMETRY #ALPHA(S) #MASS #Physics, Multidisciplinary
Tipo

article

original article

publishedVersion