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Evolution of the longitudinal structure function at small x

G.R. Boroun
(
- Razi U., Kermanshah
)

Feb 4, 2014

7 pages

Published in:

Eur.Phys.J.Plus 129 (2014) 19

e-Print:

1402.0680 [hep-ph]

DOI:

10.1140/epjp/i2014-14019-1

View in:

ADS Abstract Service

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Abstract: (arXiv)

We derive an approximation approach to evolution of the longitudinal structure function, by using a Laplace-transform method. We solve the master equation and derive the longitudinal structure function as a function of the initial condition

F_{L}(x,Q^{2}_{0})

at small x. Our results are independent of the longitudinal coefficient functions and extend from the leading order (LO) up to next-to-next-to-leading order (NNLO). The comparisons with H1 data and other parameterizations are made and results show that they are in agreement with H1 data and some phenomenological models.

Note:

8pages,3figures

structure function: longitudinal
master equation: solution
transformation: Laplace
quantum chromodynamics: small-x
quantum chromodynamics: perturbation theory: higher-order
higher-order: 2

References(57)

Figures(3)

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