scholarly journals Higher order QCD corrections to charged-lepton deep-inelastic scattering and global fits of parton distributions

2009 ◽  
Vol 672 (2) ◽  
pp. 166-171 ◽  
Author(s):  
S. Alekhin ◽  
S. Moch
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Charged Lepton ◽  
Higher Order ◽  
Parton Distributions

scholarly journals The challenge of the EMC effect: Existing data and future directions

2014 ◽  
Vol 23 (08) ◽  
pp. 1430013 ◽  
Author(s):  
Simona Malace ◽  
David Gaskell ◽  
Douglas W. Higinbotham ◽  
Ian C. Cloët
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Cross Sections ◽  
Charged Lepton ◽  
Current Status ◽  
Theoretical Understanding ◽  
Future Directions ◽  
Precise Data ◽  
Emc Effect ◽  
Existing Data

Since the discovery that the ratio of inclusive charged lepton (per-nucleon) cross-sections from a nucleus A to the deuteron is not unity — even in deep inelastic scattering kinematics — a great deal of experimental and theoretical effort has gone into understanding the phenomenon. The EMC effect, as it is now known, shows that even in the most extreme kinematic conditions the effects of the nucleon being bound in a nucleus cannot be ignored. In this paper, we collect the most precise data available for various nuclear to deuteron ratios, as well as provide a commentary on the current status of the theoretical understanding of this thirty year old effect.

ALGORITHM DEPENDENCE OF PARTON SHOWERS IN DEEP INELASTIC SCATTERING

1991 ◽  
Vol 06 (06) ◽  
pp. 989-1002 ◽  
Author(s):  
TOMO MUNEHISA ◽  
HIDEKAZU TANAKA
Keyword(s):  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Inelastic Electron ◽  
Proton Scattering ◽  
Parton Distributions ◽  
Deep Inelastic Electron ◽  
Evolution Algorithms

Parton showers for deep inelastic electron-proton scattering are studied. Forward and backward evolution algorithms are constructed using the same definitions for splitting and evolution variables. We discuss features of two algorithms and examine algorithm dependence of final parton distributions.

IMPROVED PARTON DISTRIBUTIONS AND W, Z PRODUCTION AT $p\bar{p}$ COLLIDERS

1989 ◽  
Vol 04 (12) ◽  
pp. 1135-1142 ◽  
Author(s):  
A.D. MARTIN ◽  
R.G. ROBERTS ◽  
W.J. STIRLING
Keyword(s):  
Inelastic Scattering ◽  
Structure Function ◽  
Deep Inelastic Scattering ◽  
Function Analysis ◽  
Charge Asymmetry ◽  
Dilepton Production ◽  
Parton Distributions

We obtain improved parton distributions from a structure function analysis which includes new data on deep inelastic scattering and on dilepton production. These lead to improved predictions for σ(W)/σ(Z), which when combined with the forthcoming data from [Formula: see text] colliders, will give tighter constraints on the values of mt and Ny. We emphasize how new measurements of the W± charge asymmetry may resolve the EMC — BCDMS F2 discrepancy and hence sharpen the prediction for σ(W)/σ(Z) even further.

scholarly journals Transverse Momentum Dependent Hadron Multiplicities at COMPASS

2016 ◽  
Vol 40 ◽  
pp. 1660031
Author(s):  
Nour Makke
Keyword(s):  
Transverse Momentum ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Spin Structure ◽  
Parton Distributions ◽  
Transverse Momentum Dependent ◽  
Compass Experiment ◽  
Fragmentation Functions

Unpolarised semi-inclusive deep inelastic scattering is receiving a growing interest as a powerful tool to access poorly known transverse momentum dependent parton distributions and fragmentation functions that play a key role in many processes, in particular in the study of the spin structure of the nucleon. These functions can be investigated through experimental observables. New results on these observables by the COMPASS experiment at CERN will be shown and discussed.

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