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arXiv · hep-ph/0411026

Upsilon Transverse Momentum at Hadron Colliders

Edmond L. Berger·Jianwei Qiu·Yili Wang
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Abstract

We predict the shape of the transverse momentum p_T spectrum of Upsilon production. The distribution at low p_T is dominated by the region of small impact parameter b and may be computed reliably in perturbation theory. We resum to all orders in the strong coupling alpha_s the process-independent large logarithmic contributions that arise from initial-state gluon showers in the small p_T (< M_Upsilon) region. The cross section at large p_T is represented by the alpha_s^3 lowest-order non-vanishing perturbative contribution.

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Edmond L. Berger, Jianwei Qiu, Yili Wang. 2004-11-01. Upsilon Transverse Momentum at Hadron Colliders. https://doi.org/10.1142/s0217751x05027515

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