scholarly journals Mellin representation for the heavy flavor contributions to deep inelastic structure functions

2004 ◽  
Vol 594 (3-4) ◽  
pp. 299-307 ◽  
Author(s):  
Sergey I. Alekhin ◽  
Johannes Blümlein
Keyword(s):  
Structure Functions ◽  
Heavy Flavor ◽  
Mellin Representation

scholarly journals STRUCTURE FUNCTIONS IN DEEP INELASTIC LEPTON-NUCLEON SCATTERING

2000 ◽  
Vol 15 (supp01b) ◽  
pp. 467-494 ◽  
Author(s):  
MAX KLEIN
Keyword(s):  
Inelastic Scattering ◽  
Structure Function ◽  
Deep Inelastic Scattering ◽  
Gluon Distribution ◽  
Structure Functions ◽  
Heavy Flavor ◽  
Nucleon Scattering ◽  
High Q ◽  
Low X

This report presents the latest results on structure functions, as available at the Lepton-Photon Symposium 1999. It focuses on three experimental areas: new structure function measurements, in particular from HERA at low x and high Q2; results on light and heavy flavor densities; and determinations of the gluon distribution and of αs. As the talk was delivered at a historic moment and place, a few remarks were added recalling the exciting past and looking into the promising future of deep inelastic scattering (DIS).

scholarly journals The behavior of the heavy quarks structure functions at small-x

2015 ◽  
Vol 24 (08) ◽  
pp. 1550063 ◽  
Author(s):  
G. R. Boroun ◽  
B. Rezaei
Keyword(s):  
Cross Sections ◽  
Structure Functions ◽  
Heavy Quarks ◽  
Heavy Flavor ◽  
Effective Coefficients ◽  
Color Dipole ◽  
Small X

The behavior of the charm and bottom structure functions [Formula: see text], where i = c, and b; k = 2, and L) at small-x is considered with respect to the hard-Pomeron and saturation models. Having checked that this behavior predicate the heavy flavor reduced cross-sections concerning the unshadowed and shadowed corrections. We will show that the effective exponents for the unshadowed and saturation corrections are independent of x and Q2, and also the effective coefficients are dependent to ln Q2 compared to Donnachie–Landshoff (DL) and color dipole models (CDMs).

scholarly journals Heavy Flavor Contributions to DIS Structure Functions at O(a_s^3)

2010 ◽  
Author(s):  
Johannes Bluemlein ◽  
Isabella Bierenbaum ◽  
Sebastian Klein
Keyword(s):  
Structure Functions ◽  
Heavy Flavor

NON-SINGLET PART OF THE LONGITUDINAL STRUCTURE FUNCTION FL UP TO $O(\alpha_s^3)$

2011 ◽  
Vol 26 (03n04) ◽  
pp. 686-687 ◽  
Author(s):  
M. SOLEYMANINIA ◽  
ALI N. KHORRAMIAN
Keyword(s):  
Structure Function ◽  
Structure Functions ◽  
Distribution Functions ◽  
Nucleon Structure ◽  
Heavy Flavor ◽  
Longitudinal Structure ◽  
Nucleon Scattering ◽  
Longitudinal Structure Function ◽  
Nucleon Structure Function ◽  
Qcd Analysis

The unpolarized longitudinal nucleon structure function FL, measured in the deep inelastic lepton-nucleon scattering, is contained of three parts, singlet, non-singlet and gluon. The aim of this paper is to perform a QCD analysis of the longitudinal heavy and light structure functions FL(x, Q2) in the non-singlet part up to [Formula: see text]. We use the light and heavy flavor Wilson coefficients and distribution functions in Mellin space. Also we need to use the Padé approximation for αs analysis.

scholarly journals Asymptotic 3-loop heavy flavor corrections to the charged current structure functions FLW+−W−(x,Q2) and F2W+−W−(x,Q2)

2016 ◽  
Vol 94 (11) ◽  
Author(s):  
A. Behring ◽  
J. Blümlein ◽  
G. Falcioni ◽  
A. De Freitas ◽  
A. von Manteuffel ◽  
...  
Keyword(s):  
Structure Functions ◽  
Charged Current ◽  
Heavy Flavor ◽  
Current Structure

Heavy flavor results from PHENIX at RHIC

2009 ◽  
Author(s):  
Raphael Granier de Cassagnac
Keyword(s):  
Heavy Flavor

Heavy Flavour Effects in the Virtual Photon Structure Functions to NLO in QCD

2009 ◽  
Author(s):  
Tsuneo Uematsu ◽  
Yoshio Kitadono ◽  
Ken Sasaki ◽  
Takahiro Ueda
Keyword(s):  
Virtual Photon ◽  
Structure Functions ◽  
Photon Structure

Matrix metalloproteinases: structure, functions and genetic polymorphism

2017 ◽  
pp. 14-23
Author(s):  
А.С. Шадрина ◽  
И.В. Терешкина ◽  
Я.З. Плиева ◽  
Д.Н. Кушлинский ◽  
Д.О. Уткин ◽  
...  
Keyword(s):  
Genetic Polymorphism ◽  
Matrix Metalloproteinases ◽  
Active Center ◽  
Human Body ◽  
Enzymatic Catalysis ◽  
Structure Functions ◽  
Zinc Ion ◽  
Etiological Factors ◽  
Mmp Genes

Матриксные металлопротеиназы (ММП) - ферменты класса гидролаз, осуществляющие ферментативный катализ с помощью связанного в активном центре иона цинка. Функции ММП разнообразны, и нарушение баланса их активности может быть одним из этиологических факторов различных заболеваний. В данном обзоре рассмотрена классификация ММП человека, особенности их структуры и регуляции, а также роль в физиологических и патологических процессах в организме человека. Приведен перечень наиболее изученных на настоящий момент полиморфных вариантов генов MMП, описаны их функциональные эффекты и представлены результаты ассоциативных исследований. Matrix metalloproteinases (MMPs) are enzymes of the hydrolase class that carry out enzymatic catalysis with the help of a zinc ion bound in the active center. MMP functions are diverse, and a disturbance in the balance of their activity may be one of the etiological factors of various diseases. In this review, the classification of human MMP, the features of their structure and regulation, as well as the role in physiological and pathological processes in the human body are considered. A list of the most studied polymorphic versions of MMP genes has been given, their functional effects have been described, and the results of associative studies have been presented.

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