1.

Record Nr.

UNINA9910254621103321

Autore

Hall Nathan L

Titolo

Hadron Structure in Electroweak Precision Measurements / / by Nathan L. Hall

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016

ISBN

3-319-20221-9

Edizione

[1st ed. 2016.]

Descrizione fisica

1 online resource (127 p.)

Collana

Springer Theses, Recognizing Outstanding Ph.D. Research, , 2190-5053

Disciplina

530

Soggetti

Particles (Nuclear physics)

Quantum field theory

Mathematical physics

Elementary Particles, Quantum Field Theory

Theoretical, Mathematical and Computational Physics

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Doctoral thesis accepted by the University of Adelaide, Australia.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

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

Sommario/riassunto

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.