Color spin wave functions of heavy tetraquark states

Woosung Park; Su Houng Lee

doi:10.1016/j.nuclphysa.2014.02.008

Color spin wave functions of heavy tetraquark states

Woosung Park, Su Houng Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Using the variational method, we calculate the mass of the ^{J P} = ^{1 +} udb-b- tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L = 0 part of the spatial wave function. We find that for the heavy tetraquark, the 66- component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.

Original language	English
Pages (from-to)	161-184
Number of pages	24
Journal	Nuclear Physics A
Volume	925
DOIs	https://doi.org/10.1016/j.nuclphysa.2014.02.008
Publication status	Published - 2014 May

Bibliographical note

Funding Information:
We would like to thank S. Takeuchi for useful discussions. This work was supported by the Korean Research Foundation under Grant Nos. KRF-2011-0020333 and KRF-2011-0030621 .

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.nuclphysa.2014.02.008

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title = "Color spin wave functions of heavy tetraquark states",

abstract = "Using the variational method, we calculate the mass of the J P = 1 + udb-b- tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L = 0 part of the spatial wave function. We find that for the heavy tetraquark, the 66- component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.",

author = "Woosung Park and Lee, {Su Houng}",

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T1 - Color spin wave functions of heavy tetraquark states

AU - Park, Woosung

AU - Lee, Su Houng

N1 - Funding Information: We would like to thank S. Takeuchi for useful discussions. This work was supported by the Korean Research Foundation under Grant Nos. KRF-2011-0020333 and KRF-2011-0030621 .

PY - 2014/5

Y1 - 2014/5

N2 - Using the variational method, we calculate the mass of the J P = 1 + udb-b- tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L = 0 part of the spatial wave function. We find that for the heavy tetraquark, the 66- component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.

AB - Using the variational method, we calculate the mass of the J P = 1 + udb-b- tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L = 0 part of the spatial wave function. We find that for the heavy tetraquark, the 66- component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.

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DO - 10.1016/j.nuclphysa.2014.02.008

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AN - SCOPUS:84897666228

SN - 0375-9474

VL - 925

SP - 161

EP - 184

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Color spin wave functions of heavy tetraquark states

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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