Relating transverse-momentum-dependent and collinear factorization theorems in a generalized formalism

J. Collins; L. Gamberg; A. ProkudinT. C. RogersN. SatoB. Wang

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Relating transverse-momentum-dependent and collinear factorization theorems in a generalized formalism

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摘要

We construct an improved implementation for combining transverse-momentum-dependent (TMD) factorization and collinear factorization. TMD factorization is suitable for low transverse momentum physics, while collinear factorization is suitable for high transverse momenta and for a cross section integrated over transverse momentum. The result is a modified version of the standard W + Y prescription traditionally used in the Collins-Soper-Sterman (CSS) formalism and related approaches. We further argue that questions regarding the shape and Q dependence of the cross sections at lower Q are largely governed by the matching to the Y term.

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《Physical review, D》 |2016年第3期|034014-1-034014-20|共20页
作者
J. Collins; L. Gamberg; A. ProkudinT. C. RogersN. SatoB. Wang;
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作者单位

Department of Physics, Penn State University, University Park. Pennsylvania 16802, USA;

Science Division, Penn State University Berks, Reading, Pennsylvania 19610, USA;

Department of Physics, Old Dominion University, Norfolk, Virginia 23529, USATheory Center, Jefferson Lab, 12000 Jefferson Avenue, Newport News, Virginia 23606, USA;

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正文语种英语
中图分类粒子物理学;场论;
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Relating; transverse-momentum-dependent; collinear;

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Relating transverse-momentum-dependent and collinear factorization theorems in a generalized formalism

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