Author:
Nefedov M.A.,Saleev V. A.
Abstract
Abstract
In framework of the Parton Reggeization Approach, we obtain gauge invariant hadronic tensor Wμν
for Drell-Yan process in Transverse Momentum Dependent factorization. We show that use of Fadin-Sherman effective vertex, which describes annihilation of Reggeized quark-antiquark into virtual photon, leads to new relations between Helicity Structure Functions
F
U
U
(
1
,
2
cos
ϕ
,
c
o
s
2
ϕ
)
and Parton Distribution Functions
(
f
1
q
(
x
,
q
T
)
,
h
1
⊥
q
(
x
,
q
T
)
)
in unpolarized proton-proton collisions. We estimate numerically relative contributions of parton number density function
f
1
q
(
x
,
q
T
)
and Boer-Mulders function
h
1
⊥
q
(
x
,
q
T
)
in the Helicity Structure Functions
F
U
U
(
1
)
and
F
U
U
(
cos
2
ϕ
)
at the kinematical conditions of the future collider NICA.
Subject
General Physics and Astronomy
Cited by
1 articles.
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