Generalized isobar model formalism

Abstract

We present an isobar model formalism for analyzing the reaction a + b -1 + 2 + 3. Arbitrary spins are allowed for all the particles. Polarized particles and weak decays of an outgoing particle are discussed. We also show how to extend the formalism to allow an isobar analysis of a three-body subsystem of an n -particle final state.

Amplitude analyses of D 0 → π + π − π + π − and D 0 → K + K − π + π − decays

“…To construct A i (x), the isobar approach is used, which assumes that the decay process can be factorized into subsequent two-body decay amplitudes [33][34][35]. This gives rise to two different decay topologies; quasi two-body decays…”

CP violation in multibody B decays from QCD factorization

“…(2.3) completely from data on the time-like pion form factors is an important one. In this way one can avoid the use of isobar assumptions [38,39] and Breit-Wigner-shaped resonance models (e.g. [40][41][42][43]).…”

Dalitz plot analysis ofBs0→D¯0Aaij1, Adeva2, Adinolfi3 et al. 2014Phys. Rev. D1135580View full textAdd to dashboardCite

“…In [83][84][85], which describes the total amplitude as a coherent sum of amplitudes from resonant or nonresonant intermediate processes. As such the total amplitude is given by…”