{ 1{ B 0 {b 0 Mixing Formalism in Quantum Mechanics
نویسنده
چکیده
There are two neutral B 0 {B 0 meson systems, B 0 d {B 0 d and B 0 s {B 0 s (generically denoted B 0 q {B 0 q , q = s; d), which exhibit the phenomenon of particle-antiparticle mixing 1]. Such a system is produced in one of its two possible states of well-deened avor: jB 0 i (bq) or jB 0 i (bq). Due to avor-changing interactions, this initial state evolves into a time-dependent quantum superposi-tion of the two avor states, a(t)jB 0 i + b(t)jB 0 i, satisfying the equation i @ @t a(t) b(t) = M ? i 2 ? a(t) b(t) ; (1) where M and ?, known as the mass and decay matrices, describe the dispersive and absorptive parts of B 0 {B 0 mixing. These matrices are hermitian, and CPT invariance requires
منابع مشابه
Formalism in quantum mechanics
Formalism in quantum mechanics There are two neutral B 0 –B 0 meson systems, B 0 d –B 0 d and B 0 s –B 0 s (generically denoted B 0 q –B 0 q , q = s, d), which exhibit the phenomenon of particle-antiparticle mixing [1]. Such a system is produced in one of its two possible states of well-defined flavor: |B 0 (bq) or |B 0 (bq). Due to flavor-changing interactions, this initial state evolves into ...
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