Nathan L. Hall

Hadron Structure in Electroweak Precision Measurements (eBook, PDF)

• Format: PDF

Produktbeschreibung

This thesis examines the ¿Z 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 ¿¿ and ¿Z 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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Produktdetails

• Verlag: Springer Nature Switzerland
• Seitenzahl: 120
• Erscheinungstermin: 24. Juli 2015
• Englisch
• ISBN-13: 9783319202211
• Artikelnr.: 43785739

Inhaltsangabe

Introduction.- The Standard Model and beyond.- Precision tests of the SM.- Structure functions.- Adelaide-Jefferson Lab-Manitoba model.- The Z box corrections.- Electric and magnetic polarizabilities of the proton.- Quark-hadron duality.- Summary and conclusion.