Transverse momentum dependent transversely polarized distributions at next-to-next-to-leading-order - INSPIRE

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Transverse momentum dependent transversely polarized distributions at next-to-next-to-leading-order

Daniel Gutierrez-Reyes
(
- Madrid U.
)
,
Ignazio Scimemi
(
- Madrid U.
)
,
Alexey Vladimirov
(
- Regensburg U.
)

May 18, 2018

17 pages

Published in:

JHEP 07 (2018) 172

Published: Jul 30, 2018

e-Print:

1805.07243 [hep-ph]

DOI:

10.1007/JHEP07(2018)172

View in:

reference search43 citations

Citations per year

Abstract: (arXiv)

We calculate the matching of the transversity and pretzelosity transverse momentum dependent distributions (TMD) on transversity collinear distribution at the next-to-next-to-leading order (NNLO). We find that the matching coefficient for pretzelosity distribution is zero, despite the matrix element for it is nontrivial. This result suggests that the pretzelosity matches a twist-4 distribution. The matching for transversity TMD distributions is provided for both parton distribution functions and fragmentation functions cases.

Note:

16 pages. Mathematica files with details of the calculation are included

NLO Computations
QCD Phenomenology
parton: distribution function
higher-order: 2
transversity
transverse momentum dependence
fragmentation function
collinear
polarization: transverse
higher-twist

References(45)

Figures(0)

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)
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