Four α-particle decay of the excited 16O* quasi-projectile in the 16O + 12C reaction at 130 MeV

2019 ◽  
Vol 46 (12) ◽  
pp. 125101 ◽  
Author(s):  
M Bruno ◽  
M D’Agostino ◽  
M V Managlia ◽  
L Morelli ◽  
G Baiocco ◽  
...  
Keyword(s):  
Particle Decay

scholarly journals On the three-particle analog of the Lellouch-Lüscher formula

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Fabian Müller ◽  
Akaki Rusetsky
Keyword(s):  
Field Theory ◽  
Finite Volume ◽  
Effective Field Theory ◽  
Effective Field ◽  
Infinite Volume ◽  
Leading Order ◽  
Particle Decay ◽  
Particle Decays

Abstract Using non-relativistic effective field theory, we derive a three-particle analog of the Lellouch-Lüscher formula at the leading order. This formula relates the three-particle decay amplitudes in a finite volume with their infinite-volume counterparts and, hence, can be used to study the three-particle decays on the lattice. The generalization of the approach to higher orders is briefly discussed.

NeutralV-Particle Decay and the Negative Proton

1952 ◽  
Vol 85 (2) ◽  
pp. 374-374 ◽  
Author(s):  
L. I. Schiff
Keyword(s):  
Particle Decay

MASS AND LIFETIME MEASUREMENTS AT THE PRESENT ESR FACILITY

2009 ◽  
Vol 18 (02) ◽  
pp. 323-334 ◽  
Author(s):  
YURI A. LITVINOV
Keyword(s):  
Mass Spectrometry ◽  
Single Particle ◽  
Experimental Methods ◽  
Lifetime Measurements ◽  
Time Resolved ◽  
Particle Decay ◽  
Decay Properties ◽  
Decay Spectroscopy ◽  
Beta Decays ◽  
Charged Ions

Mass and lifetime measurements of stored exotic nuclei is one of the successful experimental programs at the FRS-ESR facility of GSI, Darmstadt. Two experimental techniques, namely Isochronous and time-resolved Schottky mass spectrometry have been developed. Nuclides in a very broad range of half-lives starting from stable down to only a few ten microseconds can be addressed. Single stored ions can be measured which makes these techniques highly efficient. More than 1100 atomic masses have been measured meanwhile. Half-life measurements are performed with bare and few-electron ions. Decay properties of such highly-charged ions can be dramatically different from the ones known in neutral atoms. Single-particle decay spectroscopy has been developed for investigations of two-body beta decays. A brief description of the experimental methods and recent results will be presented. Future experiments at the present facility and the perspectives with the new NuSTAR/ILIMA project at FAIR will be outlined.

scholarly journals Charged-particle decay at finite temperature

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Andrzej Czarnecki ◽  
Marc Kamionkowski ◽  
Samuel K. Lee ◽  
Kirill Melnikov
Keyword(s):  
Charged Particle ◽  
Finite Temperature ◽  
Particle Decay

scholarly journals CALCULATING TWO- AND THREE-BODY DECAYS WITH FeynArts AND FormCalc

2003 ◽  
Vol 14 (09) ◽  
pp. 1273-1278 ◽  
Author(s):  
MICHAEL KLASEN
Keyword(s):  
Standard Model ◽  
Particle Production ◽  
High Energy Physics ◽  
High Energy ◽  
Energy Distributions ◽  
Particle Decay ◽  
The Standard Model ◽  
Decay Widths ◽  
Three Body ◽  
Energy Physics

The Feynman diagram generator FeynArts and the computer algebra program FormCalc allow for an automatic computation of 2→2 and 2→3 scattering processes in High Energy Physics. We have extended this package by four new kinematical routines and adapted one existing routine in order to accomodate also two- and three-body decays of massive particles. This makes it possible to compute automatically two- and three-body particle decay widths and decay energy distributions as well as resonant particle production within the Standard Model and the Minimal Supersymmetric Standard Model at the tree- and loop-level. The use of the program is illustrated with three standard examples: [Formula: see text], [Formula: see text], and [Formula: see text].

Particle decay widths of the dipole states of 16O

1967 ◽  
Vol 91 (3) ◽  
pp. 529-550 ◽  
Author(s):  
W.P. Beres ◽  
W.M. MacDonald
Keyword(s):  
Particle Decay ◽  
Decay Widths

scholarly journals Does particle decay cause wave function collapse: an experimental test

2003 ◽  
Vol 308 (5-6) ◽  
pp. 323-328 ◽  
Author(s):  
Spencer R. Klein ◽  
Joakim Nystrand
Keyword(s):  
Wave Function ◽  
Experimental Test ◽  
Wave Function Collapse ◽  
Particle Decay

Alpha-particle decay widths of levels in 19F

1989 ◽  
Vol 499 (1) ◽  
pp. 117-130 ◽  
Author(s):  
D.M. Pringle ◽  
W.J. Vermehr
Keyword(s):  
Alpha Particle ◽  
Particle Decay ◽  
Decay Widths

DEGENERATING CLUSTERS IN AN UNBOUND REGION OF 12Be

2009 ◽  
Vol 24 (11) ◽  
pp. 2175-2182 ◽  
Author(s):  
MAKOTO ITO
Keyword(s):  
Excitation Energy ◽  
Single Particle ◽  
Cluster Model ◽  
Particle Decay ◽  
Decay Threshold

The generalized two-center cluster model (GTCM), which can treat various single particle configurations in general two center systems, is applied to the light neutron-rich system, 12 Be = α+α+4N. We discuss the change of the neutrons' configuration around two α-cores as a variation of an excitation energy. We found that the covalent, ionic and atomic configurations appear with a prominent degenerating feature above the α+8 He g.s. particle-decay threshold.

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