scholarly journals Gluon evolution at low $x$ and the longitudinal structure function

1997 ◽  
Vol 75 (4) ◽  
pp. 679-683 ◽  
Author(s):  
Ranjita Deka ◽  
D.K. Choudhury
Keyword(s):  
Structure Function ◽  
Longitudinal Structure ◽  
Longitudinal Structure Function ◽  
Low X

scholarly journals HARD-POMERON BEHAVIOR OF THE LONGITUDINAL STRUCTURE FUNCTION FL IN THE NEXT-TO-LEADING ORDER AT LOW x

2009 ◽  
Vol 18 (01) ◽  
pp. 131-140 ◽  
Author(s):  
G. R. BOROUN
Keyword(s):  
Perturbation Theory ◽  
Structure Function ◽  
Perturbative Qcd ◽  
Gluon Distribution ◽  
Analytic Formula ◽  
Leading Order ◽  
Longitudinal Structure ◽  
Longitudinal Structure Function ◽  
Low X

We present an analytic formula to extract the longitudinal structure function in the next-to-leading order of the perturbation theory at low x, from the Regge-like behavior of the gluon distribution and the structure function at this limit. In this approach, the longitudinal structure function has the hard-Pomeron behavior. The determined values are compared with the H1 data and MRST model. All results can consistently be described within the framework of perturbative QCD, which essentially show increases as x decreases.

scholarly journals The Longitudinal Structure Function FL as a Function of F2 and dF2/dln Q2 at Small x. The Next-to-Leading Analysis

1997 ◽  
Vol 12 (13) ◽  
pp. 963-973 ◽  
Author(s):  
A. V. Kotikov ◽  
G. Parente
Keyword(s):  
Structure Function ◽  
Hera Data ◽  
Longitudinal Structure ◽  
Transverse Structure ◽  
Longitudinal Structure Function ◽  
Small X ◽  
Low X

We present a set of formulas to extract the longitudinal deep inelastic structure function FL from the transverse structure function F2 and its derivative dF2/d ln Q2 at small x. Our expressions are valid for any non-negative value of δ, with x-δ the behavior of the parton densities at low x. Using F2 HERA data we obtain FL in the range 10-4≤ x≤10-2 at Q2=20 GeV 2. Some other applications of the formulas are pointed out.

A new calculation of the order-g4 QCD corrections to the longitudinal structure function

1984 ◽  
Vol 138 (5-6) ◽  
pp. 418-420 ◽  
Author(s):  
A. Devoto ◽  
D.W. Duke ◽  
J.D. Kimel ◽  
G.A. Sowell
Keyword(s):  
Structure Function ◽  
Longitudinal Structure ◽  
Longitudinal Structure Function
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