Chinese Physics C > 2017, Vol. 41 > Issue(1): 013103 DOI: 10.1088/1674-1137/41/1/013103

D⁰D^0(D⁰D^0) system in QCD-improved many body potential

1.
University of Management and Technology, Lahore, Pakistan
2.
Centre For High Energy Physics, Punjab University, Lahore(54590), Pakistan

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Abstract：
For a system of current interest (composed of charm, anticharm and a pair of light quarks), we show trends in phenomenological implications of QCD-based improvements to a simple quark model treatment. We employ a resonating group method to render this difficult four-body problem manageable. We use a quadratic confinement so as to be able to improve beyond the Born approximation. We report the position of the pole corresponding to the D ⁰D ^0*molecule for the best fit of a model parameter to the relevant QCD simulations. We point out the interesting possibility that the pole can be shifted to 3872 MeV by introducing another parameter I ₀that changes the strength of the interaction in this one component of X(3872). The revised value of this second parameter can guide future trends in modeling of the full exotic meson X(3872). We also report the changes with I ₀in the S-wave spin averaged cross sections for D ⁰D ^0*→ωJ/ψ and D ⁰D ^0*→ρJ/ψ. These cross sections are important regarding the study of QGP (quark gluon plasma).
- meson-meson interaction,
- resonating group method,
- quark potential model,
- X(3872)

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M. Imran Jamil, Bilal Masud, Faisal Akram and S. M. Sohail Gilani. D ⁰D ^0*(D ⁰D ^0*) system in QCD-improved many body potential[J]. Chinese Physics C, 2017, 41(1): 013103. doi: 10.1088/1674-1137/41/1/013103

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Received: 2016-06-27
Revised: 2016-09-22

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BM and FA acknowledge the support of PU research (D/605/Est.I Sr. 20 Project 2014-15, D/34/Est.1 Sr. 109 Project 2013-14), SG is thankful to the Higher Education Commission (HEC) of Pakistan for its financial support through (17-5-4(Ps3-128) HEC/Sch/2006)

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沈阳化工大学材料科学与工程学院沈阳 110142

D⁰D^0(D⁰D^0) system in QCD-improved many body potential

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