Transverse momentum parton distributions inspired by a quark potential model

Details Transverse momentum parton distributions inspired by a quark potential model Transverse momentum parton distributions inspired by a quark potential model

2005-06-02

arxiv.org/abs/hep-ph/0506010v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 7 figures

Scientific paper

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 $\pi^0$-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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