Beta-Decay Correlations in the LHC Era

Abstract

Neutron and nuclear beta decay correlation coefficients are linearly sensitive to the exotic scalar and tensor interactions that are not included in the Standard Model. The proposed experiment will measure simultaneously 11 neutron correlation coefficients ($a$, $A$, $B$, $D$, $H$, $L$, $N$, $R$, $S$, $U$, $V$) where 5 of them ($H$, $L$, $S$, $U$, $V$) were never addressed before. Silicon pixel detectors are considered as promising alternative to multi-wire gas chambers devoted for electron tracking in the original setup. The expected sensitivity limits for ${\epsilon }_S$ and ${\epsilon }_T$ -- EFT parameters describing the scalar and tensor contributions to be extracted from the transverse electron polarization related coefficients $H$, $L$, $N$, $R$, $S$, $U$, $V$ are discussed.

8 pages, 2 figures, presented at Jagiellonian Symposium of Fundamental and Applied Subatomic Physics, Cracow, 2015

References in corpus (3)

• Isospin breaking in the nucleon mass and the sensitivity of beta decays to new physics
• Search for leptonic decays of W' bosons in pp collisions at sqrt(s) = 7 TeV
• Measurement of the Transverse Polarization of Electrons Emitted in Free Neutron Decay

Cited by in corpus (4)

• New physics searches in nuclear and neutron $\beta$ decay
• Design of the Magnet System of the Neutron Decay Facility PERC
• On the structure of the correlation coefficients S(E_e) and U(E_e) of the neutron beta decay
• On the correlation coefficient T(E_e) of the neutron beta decay, caused by the correlation structure invariant under discrete P, C and T symmetries