New Generation of Neutron Decay Experiments

New generation of neutron decay experiments

New generation of neutron decay experiments, which can be done with high accuracy at new Spallation Neutron Sources, are very important for solution of current problems of fundamental physics and for tests of the Standard Model. The open problems of theory related to these experiments and possible approaches to their solutions are

General classification and analysis of neutron β- decay experiments

Precision Neutron Polarimetry for Neutron Beta Decay

The abBA collaboration is developing a new type of field-expansion spectrometer for a measurement of the three correlation coefficients a, A, and B and the shape parameter b. The measurement of A and B requires precision neutron polarimetry. We will polarize a pulsed cold neutron beam from the SNS using a (3)He neutron spin filter. The well-known polarizing cross section for n-(3)He has a 1/v d...

New Limit on T Violation in Free Neutron Decay

T. Soldner1, L. Beck 2, C. Plonka3, K. Schreckenbach3 , O. Zimmer4 1Institut Laue Langevin, BP156, F-38042 Grenoble Cedex 9, France, E-mail: [email protected] 2Beschleunigerlabor von LMU und TU München, Am Coulombwall, D-85747 Garching, Germany 3Physik-Department E21, TU München, James-Franck-Str., D-85747 Garching, Germany 4Physik-Department E18, TU München, James-Franck-Str., D-85747 Garching, G...

Radiative Corrections for Neutron Decay and Search for New Physics

The expected increased accuracy of neutron β-decay experiments at the new Spallation Neutron Source could result in more stringent tests of the Standard Model. For an unambiguous search for new physics in neutron decay experiments and for a precise determination of fundamental constants, it is necessarily to understand and evaluate all corrections for neutron decay with higher accuracy than the...