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[DOWNLOAD] "Hadron Structure in Electroweak Precision Measurements" by Nathan L. Hall " eBook PDF Kindle ePub Free

Hadron Structure in Electroweak Precision Measurements

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eBook details

  • Title: Hadron Structure in Electroweak Precision Measurements
  • Author : Nathan L. Hall
  • Release Date : January 24, 2015
  • Genre: Physics,Books,Science & Nature,
  • Pages : * pages
  • Size : 3634 KB

Description

This thesis examines the γZ box contribution to the weak charge of the proton. Here, by combining recent parity-violating electron-deuteron scattering data with our current understanding of parton distribution functions, the author shows that one can limit this model dependence. The resulting construction is a robust model of the γγ and γZ structure functions that can also be used to study a variety of low-energy phenomena. Two such cases are discussed in this work, namely, the nucleon’s electromagnetic polarizabilities and quark-hadron duality.       
 
By using phenomenological information to constrain the input structure functions, this important but previously poorly understood radiative correction is determined at the kinematics of the parity-violating experiment, QWEAK, to a degree of precision more than twice that of the previous best estimate.
 
A detailed investigation into available parametrizations of the electromagnetic and interference cross-sections indicates that earlier analyses suffered from the inability to correctly quantify their model dependence.


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