I= ASPECTS OF HADRONIC STRUCTURE IN THE FINAL STATE HADRON PRODUCTION IN DEEPLY INELASTIC SCATTERING
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Title of Thesis
ASPECTS OF HADRONIC STRUCTURE IN THE FINAL STATE HADRON PRODUCTION IN DEEPLY INELASTIC SCATTERING

Author(s)
Muneer Ahmad
Institute/University/Department Details
University Of The Punjab
Session
2000
Subject
Physics
Number of Pages
150
Keywords (Extracted from title, table of contents and abstract of thesis)
hadronic structure, hadrons production, inelastic scattering, quark patron model, semi-inclusive dis , zeus, azimuthal asymmetries, elastic scattering

Abstract
The quantum corrections to the quark-parton level matrix elements of lepton-nuceon (lp) scattering at short distance provoke azimuthal asymmetries in the final state of particle production. Including one €“ and higher-loop corrections. Where the gluon self coupling diagrams are also taken into account, the corresponding angular correlations are time-reversal-odd (T €“ odd). We present quantitative study of transverse momentum distribution of angular asymmetries in the semi-inclusive processes at tp collider at HERA through the exchange of electromagnetic and weak charged current. We also predict the asymmetries in the (2+1)-jet production at HERA where the asymmetries are larger as compared to the semi-inclusive processes. T- odd asymmetries and the other azimuthal asymmetries in the inclusive jet processes through virtual €“ current and the semi-inclusive processes through charged weak-current are comparatively larger than those in the semi-inclusive processes through the exchange of neutral current.

We also investigate the process of harmonization of light quarks into the difference of charged pions and kaons. We extract the corresponding leading order (I.O) fragmentation functions (FFs) by analyzing the data from fixed target experiments for the production of charged hadrons in pd and pd scattering measured by EMC experiment. We use simple QPM ansatz for analyzing the data. We find, the obtained FF of quarks into the difference of charged pions agrees very well with the existing DIS data. The observed disagreement between our computed fragmentation function of quark into the difference of charged kaons requires precise analysis of the experimental data for wide range of kinematical variables.

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2452.63 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
60.24 KB
2 1 Introduction 3
215.69 KB
  1.1 The Standard Model 3
  1.2 Discrete Symmetries In Particle Physics 8
3 2 Theoretical Framework 14
293.29 KB
  2.1 Deep Elastic And Deep Inelastic Scattering, A Review 14
  2.2 Review Of Quark Parton Model 20
  2.3 QCD Evolution Of Fragmentation Functions 24
4 3 Analytical Formalism Of Azimuthal Asymmetries 32
317.14 KB
  3.1 Semi-Inclusive Process And The Related Kinematics 33
  3.2 Semi-Inclusive DIS In Terms Of Parton Model 42
5 4 Comparison With ZEUS And Iii Experiments 51
304.73 KB
  4.1 Hadron Production By H1 52
  4.2 Hadron Production By ZEUS 53
  4.3 Numerical Results 54
6 5 Numerical Results For The Azimuthal Asymmetries At Hera 66
595.83 KB
  5.1 Azimuthal Asymmetries For Neutral Current Interactions 68
  5.2 Azimuthal Asymmetries For Weak Charged Current 73
7 6 Azimuthal Asymmetries In Jet Events 96
171.9 KB
8 7 Fragmentation Functions For The Difference Of Charged Hadrons 105
396.71 KB
  7.1 Semi-Inclusive Deep Inelastic Scattering In Laboratory Frame 109
  7.2 Comparison With The Experiment And Phenomenological Results 117
9 8 Summary And Conclusion 131
49.64 KB
10 9 Acknowledgments 134
234.64 KB