scholarly journals Importance of nucleon recoil in weak decay of hypernuclei

1995 ◽  
Vol 51 (1) ◽  
pp. 405-408 ◽  
Author(s):  
Il-Tong Cheon ◽  
Hee Kwan Han
Keyword(s):  
Weak Decay ◽  
Nucleon Recoil

scholarly journals Decay amplitudes to three hadrons from finite-volume matrix elements

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Maxwell T. Hansen ◽  
Fernando Romero-López ◽  
Stephen R. Sharpe
Keyword(s):  
Finite Volume ◽  
Decay Amplitude ◽  
Weak Decay ◽  
Matrix Elements ◽  
Isospin Breaking ◽  
Final State ◽  
Identical Particles ◽  
Hadron Decay ◽  
Finite State ◽  
Particle Decays

Abstract We derive relations between finite-volume matrix elements and infinite-volume decay amplitudes, for processes with three spinless, degenerate and either identical or non-identical particles in the final state. This generalizes the Lellouch-Lüscher relation for two-particle decays and provides a strategy for extracting three-hadron decay amplitudes using lattice QCD. Unlike for two particles, even in the simplest approximation, one must solve integral equations to obtain the physical decay amplitude, a consequence of the nontrivial finite-state interactions. We first derive the result in a simplified theory with three identical particles, and then present the generalizations needed to study phenomenologically relevant three-pion decays. The specific processes we discuss are the CP-violating K → 3π weak decay, the isospin-breaking η → 3π QCD transition, and the electromagnetic γ* → 3π amplitudes that enter the calculation of the hadronic vacuum polarization contribution to muonic g − 2.

Addendum to “Search for the weak decay of anHdibaryon”

1997 ◽  
Vol 56 (2) ◽  
pp. 1164-1164 ◽  
Author(s):  
J. Belz ◽  
R. D. Cousins ◽  
M. V. Diwan ◽  
M. Eckhause ◽  
K. M. Ecklund ◽  
...  
Keyword(s):  
Weak Decay

scholarly journals Search for the H particle: Its production and weak decay

1992 ◽  
Vol 547 (1-2) ◽  
pp. 3-15 ◽  
Author(s):  
Peter D. Barnes
Keyword(s):  
Weak Decay

Using the η′ to understand the weak decay of charmed hadrons

1991 ◽  
Vol 259 (1-2) ◽  
pp. 135-138 ◽  
Author(s):  
Martin J. Savage
Keyword(s):  
Weak Decay

Leading two-body weak-decay modes of λb

1981 ◽  
Vol 32 (7) ◽  
pp. 193-197 ◽  
Author(s):  
B. Guberina ◽  
D. Tadić ◽  
J. Trampetić
Keyword(s):  
Weak Decay ◽  
Decay Modes

scholarly journals SELECTED TOPICS IN HIGH ENERGY SEMI-EXCLUSIVE ELECTRO-NUCLEAR REACTIONS

2001 ◽  
Vol 10 (06) ◽  
pp. 405-457 ◽  
Author(s):  
MISAK M. SARGSIAN
Keyword(s):  
Present Status ◽  
Short Range ◽  
Nuclear Reactions ◽  
Eikonal Approximation ◽  
High Energy ◽  
Glauber Theory ◽  
Nucleon Recoil ◽  
High Energy Scattering ◽  
Nuclear Targets ◽  
Short Range Correlations

We review the present status of the theory of high energy reactions with semi-exclusive nucleon electro-production from nuclear targets. We demonstrate how the increase of transferred energies in these reactions opens a completely new window for study of the microscopic nuclear structure at small distances. The simplifications in theoretical descriptions associated with the increase in the energies are discussed. The theoretical framework for calculation of high energy nuclear reactions based on the effective Feynman diagram rules is described in detail. The result of this approach is the generalized eikonal approximation (GEA), which is reduced to the Glauber approximation when nucleon recoil is neglected. The method of GEA is demonstrated in the calculation of high energy electro-disintegration of the deuteron and A=3 targets. Subsequently, we generalize the obtained formulae for A>3 nuclei. The relation of GEA to the Glauber theory is analyzed. Then, based on the GEA framework we discuss some of the phenomena which can be studied in exclusive reactions: nuclear transparency and short-range correlations in nuclei. We illustrate how light-cone dynamics of high-energy scattering emerge naturally in high energy electro-nuclear reactions.

scholarly journals The Charm and Beauty of Strong Interactions

2018 ◽  
Vol 172 ◽  
pp. 02005 ◽  
Author(s):  
Bruno El-Bennich
Keyword(s):  
Mass Spectrum ◽  
Strong Interaction ◽  
Bound States ◽  
Flavor Physics ◽  
Weak Decay ◽  
Strong Interactions ◽  
Interaction Models ◽  
Common Features ◽  
Decay Constants

We briefly review common features and overlapping issues in hadron and flavor physics focussing on continuum QCD approaches to heavy bound states, their mass spectrum and weak decay constants in different strong interaction models.

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