motivation energy dependence of running coupling qcd analysis of non-singlet structure function fit...

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DETERMINATION OF THE STRONG COUPLING CONSTANT USING AVAILABLE EXPERIMENTAL DATA S.Atashbar Tehrani and Ali N. Khorramian Semnan University and School of Particles and Accelerators Institute for studies in theoretical Physics and Mathemastics (IPM)

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Page 1: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

DETERMINATION OF THE STRONG COUPLING CONSTANT USING AVAILABLE EXPERIMENTAL DATA

S.Atashbar Tehrani and

Ali N. Khorramian

Semnan University and

School of Particles and AcceleratorsInstitute for studies in theoretical Physics and Mathemastics

(IPM)

Page 2: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

• Motivation• Energy dependence of running coupling • QCD Analysis of non-singlet Structure Function• Fit Results in unpolarized and polarized cases• Conclusion

DETERMINATION OF THE STRONG COUPLING CONSTANT USING AVAILABLE EXPERIMENTAL DATA

Beijing,, Sep. 21-26, 2009

Page 3: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Motivation

Beijing,, Sep. 21-26, 2009

Page 4: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Motivation

Beijing,, Sep. 21-26, 2009

Page 5: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Energy dependence of running coupling

Beijing,, Sep. 21-26, 2009

Page 6: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Energy dependence of running coupling

Beijing,, Sep. 21-26, 2009

Page 7: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Beijing,, Sep. 21-26, 2009

Energy dependence of running coupling

Page 8: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 9: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 10: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 11: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 12: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 13: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 14: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 15: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 16: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Analysis of non-singlet Structure Function

Beijing,, Sep. 21-26, 2009

Page 17: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit Results

Beijing,, Sep. 21-26, 2009

Page 18: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit Results

Beijing,, Sep. 21-26, 2009

Page 19: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit results – world data on non-singlet structure (up to NNLO)

Beijing,, Sep. 21-26, 2009

Page 20: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit results – world data on non-singlet structure (up to NNNLO)

Beijing,, Sep. 21-26, 2009

Page 21: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit results – world data on non-singlet structure (up to NNNLO)

Beijing,, Sep. 21-26, 2009

Page 22: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit results – world data on non-singlet structure (up to NNNLO)

Beijing,, Sep. 21-26, 2009

Page 23: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

QCD Fit results – world data on polarized structure function(up to NNLO)

Beijing,, Sep. 21-26, 2009

Page 24: Motivation Energy dependence of running coupling QCD Analysis of non-singlet Structure Function Fit Results in unpolarized and polarized cases Conclusion

Conclusion

Beijing,, Sep. 21-26, 2009

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