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  1. Pubblicazioni

Challenges with large transverse momentum in semi-inclusive deeply inelastic scattering

Articolo
Data di Pubblicazione:
2018
Abstract:
We survey the current phenomenological status of semi-inclusive deeply inelastic scattering at moderate hard scales and in the limit of very large transverse momentum. As the transverse momentum becomes comparable to or larger than the overall hard scale, the differential cross sections should be calculable with fixed order perturbative QCD (pQCD) methods, while small transverse momentum (transverse-momentum-dependent factorization) approximations should eventually break down. We find large disagreement between HERMES and COMPASS data and fixed order calculations done with modern parton densities, even in regions of kinematics where such calculations should be expected to be very accurate. Possible interpretations are suggested.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Gonzalez-Hernandez J.O.; Rogers T.C.; Sato N.; Wang B.
Autori di Ateneo:
GONZALEZ HERNANDEZ Jose Osvaldo
Link alla scheda completa:
https://iris.unito.it/handle/2318/1770916
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1770916/704649/PhysRevD.98.114005(3).pdf
Pubblicato in:
PHYSICAL REVIEW D
Journal
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URL

https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.114005
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