The predictions of the charm structure function exponents behaviour at low x in deep inelastic scattering

被引：15

作者：

Boroun, G. R. ^{[1
]}

Rezaei, B. ^{[1
]}

机构：

[1] Razi Univ, Dept Phys, Kermanshah 67149, Iran

来源：

EPL | 2012年 / 100卷 / 04期

关键词：

HEAVY-QUARK CONTRIBUTIONS; D-ASTERISK(+/-) PRODUCTION; PROTONS;

D O I：

10.1209/0295-5075/100/41001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use the hard (Lipatov) pomeron for the low-x gluon distribution and provide a compact formula for the ratio R-c = F-L(c (c) over bar)/F-2(c (c) over bar) that is useful to extract the charm structure function from the reduced charm cross-section, in particular at DESY HERA. Our results show that this ratio is independent of x and independent of the DGLAP evolution of the gluon PDF. As a result, we show that the charm structure function and the reduced charm cross-section exponents do not have the same behaviour at very low x. This difference is independent of the input gluon distribution functions and predicts the non-linear effects and some evidence for shadowing and antishadowing at HERA and RHIC. Copyright (C) EPLA, 2012

引用

页数：6

共 50 条

[21] Charm production in deep inelastic scattering and diffraction at HERA
Erdmann, W
PHOTON 2001, 2002, : 128 - 133
[22] EFFECTS OF CHARM AND COLOR IN DEEP INELASTIC NEUTRINO SCATTERING
TOKUDA, N
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1975, 29 (03): : 335 - 345
[23] Consistent treatment of charm evolution in deep inelastic scattering
A.D. Martin
R.G. Roberts
M.G. Ryskin
W.J. Stirling
The European Physical Journal C - Particles and Fields, 1998, 2 : 287 - 300
[24] Comparison of inclusive charm and beauty cross sections in deep-inelastic scattering at HERA with theoretical predictions
Thompson, P. D.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2007, 34 (05) : N177 - N192
[25] Consistent treatment of charm evolution in deep inelastic scattering
Martin, AD
Roberts, RG
Ryskin, MG
Stirling, WJ
EUROPEAN PHYSICAL JOURNAL C, 1998, 2 (02): : 287 - 300
[26] Pion structure function at small x from deep-inelastic scattering data
Kopeliovich, B. Z.
Potashnikova, I. K.
Povh, B.
Schmidt, Ivan
PHYSICAL REVIEW D, 2012, 85 (11):
[27] Tensor Pomeron and low-x deep inelastic scattering
Britzger, Daniel
Ewerz, Carlo
Glazov, Sasha
Nachtmann, Otto
Schmitt, Stefan
PHYSICAL REVIEW D, 2019, 100 (11)
[28] Measurement of charm and beauty jets in deep inelastic scattering at HERA
Aaron, F. D.
Alexa, C.
Andreev, V.
Backovic, S.
Baghdasaryan, A.
Barrelet, E.
Bartel, W.
Begzsuren, K.
Belousov, A.
Bizot, J. C.
Boudry, V.
Bozovic-Jelisavcic, I.
Bracinik, J.
Brandt, G.
Brinkmann, M.
Brisson, V.
Britzger, D.
Bruncko, D.
Bunyatyan, A.
Buschhorn, G.
Bystritskaya, L.
Campbell, A. J.
Cantun Avila, K. B.
Ceccopieri, F.
Cerny, K.
Cerny, V.
Chekelian, V.
Cholewa, A.
Contreras, J. G.
Coughlan, J. A.
Cvach, J.
Dainton, J. B.
Daum, K.
Deak, M.
Delcourt, B.
Delvax, J.
De Wolf, E. A.
Diaconu, C.
Dobre, M.
Dodonov, V.
Dossanov, A.
Dubak, A.
Eckerlin, G.
Efremenko, V.
Egli, S.
Eliseev, A.
Elsen, E.
Favart, L.
Fedotov, A.
Felst, R.
EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (01): : 1 - 21
[29] Measurement of charm and beauty jets in deep inelastic scattering at HERA
F. D. Aaron
C. Alexa
V. Andreev
S. Backovic
A. Baghdasaryan
E. Barrelet
W. Bartel
K. Begzsuren
A. Belousov
J. C. Bizot
V. Boudry
I. Bozovic-Jelisavcic
J. Bracinik
G. Brandt
M. Brinkmann
V. Brisson
D. Britzger
D. Bruncko
A. Bunyatyan
G. Buschhorn
L. Bystritskaya
A. J. Campbell
K. B. Cantun Avila
F. Ceccopieri
K. Cerny
V. Cerny
V. Chekelian
A. Cholewa
J. G. Contreras
J. A. Coughlan
J. Cvach
J. B. Dainton
K. Daum
M. Deák
B. Delcourt
J. Delvax
E. A. De Wolf
C. Diaconu
M. Dobre
V. Dodonov
A. Dossanov
A. Dubak
G. Eckerlin
V. Efremenko
S. Egli
A. Eliseev
E. Elsen
L. Favart
A. Fedotov
R. Felst
The European Physical Journal C, 2011, 71
[30] Charm production in deep inelastic Lepton-Hadron scattering
Acta Physica Polonica, Series B., 1997, 28 (12): : 2715 - 2749

← 1 2 3 4 5 →