Speaker
Mr
Abhishek Atreya
(Institute of Physics)
Description
We investigate the possibility of segregation of baryons and anti-baryons in the quark-gluon plasma phase of the early universe due to spontaneous CP violation in scattering of quarks and anti-quarks from moving Z(3) domain walls. CP violation here is spontaneous in nature and arises from the nontrivial profile of the background gauge field (A0 ) between different Z(3) vacua. We calculate the spatial variation of A0 across the Z(3) interface from the profile of the Polyakov loop (L(x)) for the Z(3) interface and determine the reflection of quarks and anti-quarks using the Dirac equation. Our results show that the reflection coefficients of quarks and anti-quarks can differ by a large amount. We discuss the implications of this CP violation in context of early universe and study the possibility of segregating quarks and anti-quarks from collapsing large Z(3) walls (which can arise in the context of certain low energy scale inflationary models).
Authors
Mr
Abhishek Atreya
(Institute of Physics)
Prof.
Ajit Srivastava
(Institute of Physics)
Dr
Anjishnu Sarkar
(LNMIT, Jaipur)
