251 citations · 1.1k across the 42 of their papers we have counts for
42 papers
Flow of entropy in the evolution of the B^0 anti B^0 system: Upper bound on CP violation from unidirectionality
Ch. Berger, L. M. Sehgal
We have previously studied the time-dependence of a B anti B meson mixture in terms of its density matrix. The requirement that the absolute value of the Stokes vector zeta(t) shou…
An upper limit on CP violation in the system
Ch. Berger, L. M. Sehgal
In a previous publication we noted that the time dependence of an incoherent mixture undergoes a qualitative change when the magnitude of CP violation exceeds a…
PCAC and coherent pion production by low energy neutrinos
Ch. Berger, L. M. Sehgal
Coherent pi^+ and pi^0 production in low energy neutrino reactions is discussed in the framework of the partially conserved axial vector current theory (PCAC). The role of lepton m…
Understanding the Forward Muon Deficit in Coherent Pion Production
L. M. Sehgal
For any inelastic process with , the cross section at is given by Adler's PCAC theorem. Inclusion of the lepton mass has…
Lepton Mass Effects in Single Pion Production by Neutrinos
Ch. Berger, L. M. Sehgal
We reconsider the Feynman-Kislinger-Ravndal model applied to neutrino-excitation of baryon resonances. The effects of lepton mass are included, using the formalism of Kuzmin, Lyubu…
CP Violation and Arrows of Time Evolution of a Neutral or Meson from an Incoherent to a Coherent State
Ch. Berger, L. Sehgal
We study the evolution of a neutral meson prepared as an incoherent equal mixture of and . Denoting the density matrix by $ρ(t) = {1/2} N(t) [\1 + \vecζ(t) \cd…