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Transverse momentum parton distributions inspired by a quark potential model

F. K. Diakonos·G. D. Galanopoulos·X. N. Maintas
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Abstract

We derive a nonperturbative transverse momentum distribution for partons using a potential model to describe the quark-quark interaction inside the proton. We use this distribution to calculate the diferential cross-section of $π^0$-production for intermediate values of transverse momentum in $p-p$ collisions at high energies. Assuming a variable string tension constant for the quark-quark potential we obtain a very good description of the experimental data at different energies. The corresponding values of the mean transverse momentum of the partons are essentially lower than those obtained using a Gaussian transverse momentum parton distribution.

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F. K. Diakonos, G. D. Galanopoulos, X. N. Maintas. 2005-06-02. Transverse momentum parton distributions inspired by a quark potential model. https://arxiv.org/abs/hep-ph/0506010

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