21397 - Elements of Nuclear and Subnuclear Physics II

Learning outcomes

Nuclear models: shell model; vibrational model; rotational model. Isospin. The deuteron and the nucleon-nucleon force. Alfa, beta and gamma decays. Nucleosynthesis.

The strong interaction and the color charge hypothesis. Qualitative elements of QCD. Asymptotic freedom and confinement. Hadronization and hadron jets. Weak interaction and weak isotopic spin. Weak charged currents and the W bosons. The Weimberg-Salam model of the electro-weak interaction. Neutral weak currents and the
Z0 boson. A survey of the Standard Model.

Course contents

NUCLEAR
Nuclear Models (KK from 5.1 to 5.3 ); Vibrational model (SW 6.1); Rotational Model (SW 6.3);
Isospin (RC 3.5 - KK 11.3 - SW 2.3); The N-N force and the deuteron (KK from 4.1 to 4.5 - SW,
from 3.6 to 3.9 , 1990 ed.; SW Chapter. 3 , 1998 ed.); Alfa decay (KK from 8 to 8.5);
Beta decay (KK from 9 to 9.9 - SW 5.4 , 1990 ed. ; SW 5.5 and 5.6 , 1998 ed.);
Gamma decay (KK from 10 to 10.7 - SW 5.2 and 5.3 , 1990 ed.; SW 5.3 and 5.4 , 1998 ed.);
Nucleosynthesis (KK 19 - SW 1.4 , 1990 ed.; SW from 10.2 to 10.6 , 1998 ed.)

SUBNUCLEAR
Strong interactions and qualitative elements of QCD. The color hypothesis - Colorless quark
bound states and combinational rules - Color SU(3) symmetry - Gluons as strong force mediators
among color charges - Elementary vertex in the strong coupling theory.(KK 18.4 - M&S 7.1).
Asymptotic freedom and confinement. The QCD quantum vacuum - Color screening and
anti-screening - "running" of the strong coupling constant and its consequencies: asymptotic
freedom and confinement. ( M&S 7.1)
Hadron Jets. The hadronization process - Final multihadronic states - the process e+e --> hadrons
and the R ratio - Collimated hadron jest production in high energy interactions (G&W E7 - M&S 7.2 - KK 18.5, 18.6, 18.7)
Weak charged interactions and ualitative elements of QFD. Leptonic , semi-leptonic and non-leptonic
weak processes - weak charge currents properties - The W bosons as mediators of the weak charge current interaction - Elementary vertex and weak coupling - Quaks mixing and CKM matrix. ( M&S 8.2, 8.3 - G&W E9).
Neutral weak interactions. Weak isotopic spin - Weinberg-Salam model and the prediction of a weak neutral current interaction - The electro-weak connection and the Z0 boson - Weimberg angle - Experimental observation
of neutral currents - Experimental detection of W and Z0 vector bosons. (G&W E10 - M&S 9.1).
Elements of Standard model. Quark and lepton families - The problem of vector boson masses and the Higgs mechanism - Vector boson couplings - Basic experimenta evidences of the Standard Model - Open questions in the S.M.l - Beyond the S.M. ? (G&W E12 - M&S 9.1 - KK 18.8)

Xeros of lecture's transparencies available.

Readings/Bibliography

See Module I .

Assessment methods

Written and oral exam.

Teaching tools

Class lectures.

Links to further information

http://www.bo.infn.it/opal/ifnsn

Office hours

See the website of Giovanni Carlo Bonsignori

See the website of Fabrizio Fabbri