Published May 1982 | Version v1
Journal article Metadata-only

Study of quarkonium spectroscopy through the approximated variational method

Creators

  • 1. Sao Paulo Univ. (Brazil). Inst. de Fisica

Description

The spectroscopy of the qq sup(-) bound states in a non-relativistic approximation using a approximate variational method is studied. Because of its similarity to positronium, a wave function of the hidrogen atom, is used. The 'coulomb-logaritmic-linear' was the potential used to described it. The fitting is done, and relevant coupling constant due to a logaritmic piece is found. All states described in this way furnishes v2 <0.29. In the study of the spin depend contributions, all states 3P are reasonably explained and it no occurs with the mass diference between psi and eta sub(c). (Author)

Abstract (Portuguese)

Procura-se estudar a espectroscopia dos estados ligados qq sup(-), na aproximacao nao relativistica, atraves do metodo variacional aproximado. Devido a semelhanca com o positronio, utiliza-se a funcao de onda do atomo de hidrogenio. E utilizado o potencial 'coulomb-logaritmico-linear'. E feito o ajuste, atraves do qual a constante de acoplamento da parte logaritmica contribui de forma relevante. Todos os estados assim descritos fornecem v2<0.29. No estudo das contribuicoes dependentes de spin, os estados 3P sao razoavelmente explicados, o que nao acontece com a diferenca de massa entre psi e eta sub(c). (Autor)

Additional details

Additional titles

Original title (Portuguese)
Estudo da espectroscopia do quarkonio atraves do metodo variacional aproximado

Publishing Information

Journal Title
Rev. Bras. Fis.
Journal Issue
vol. especial
Series
Rev. Bras. Fis.
ISSN
0374-4922

Conference

Title
4. National Meeting on Intermediate Energy Physics.
Dates
7-9 May 1982.
Place
Rio de Janeiro, RJ (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
14804388
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COULOMB FIELD; COUPLING CONSTANTS; QUARK MODEL; QUARKONIUM; SPECTROSCOPY; VARIATIONAL METHODS; WAVE FUNCTIONS
Descriptors DEC
COMPOSITE MODELS; ELECTRIC FIELDS; FUNCTIONS; MATHEMATICAL MODELS; PARTICLE MODELS