Study on Graph Entropy Associated with Multilevel Atomic Excitation

2021 ◽  
pp. 33-42
Author(s):  
Abu Mohamed Alhasan
Keyword(s):  
Atomic Excitation

scholarly journals Exothermic dark matter for XENON1T excess

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Hyun Min Lee
Keyword(s):  
Dark Matter ◽  
Mass Difference ◽  
Mass Splitting ◽  
Effective Theory ◽  
Recoil Energy ◽  
Detector Resolution ◽  
Atomic Excitation ◽  
Microscopic Models ◽  
Electron Recoil ◽  
Two Component

Abstract Motivated by the recent excess in the electron recoil from XENON1T experiment, we consider the possibility of exothermic dark matter, which is composed of two states with mass splitting. The heavier state down-scatters off the electron into the lighter state, making an appropriate recoil energy required for the Xenon excess even for the standard Maxwellian velocity distribution of dark matter. Accordingly, we determine the mass difference between two component states of dark matter to the peak electron recoil energy at about 2.5 keV up to the detector resolution, accounting for the recoil events over ER = 2 − 3 keV, which are most significant. We include the effects of the phase-space enhancement and the atomic excitation factor to calculate the required scattering cross section for the Xenon excess. We discuss the implications of dark matter interactions in the effective theory for exothermic dark matter and a massive Z′ mediator and provide microscopic models realizing the required dark matter and electron couplings to Z′.

Coulomb Scattering in Aluminum without Atomic Excitation for 1-MeV Electrons

1965 ◽  
Vol 138 (1A) ◽  
pp. A12-A14 ◽  
Author(s):  
David H. Rester ◽  
Walter J. Rainwater
Keyword(s):  
Coulomb Scattering ◽  
Atomic Excitation

Atomic-Excitation Effects on Nuclear Reactions

1980 ◽  
Vol 45 (9) ◽  
pp. 703-706 ◽  
Author(s):  
W. J. Thompson ◽  
J. F. Wilkerson ◽  
T. B. Clegg ◽  
J. M. Feagin ◽  
E. J. Ludwig ◽  
...  
Keyword(s):  
Nuclear Reactions ◽  
Atomic Excitation

scholarly journals Direct Measurement of Decoherence for Entanglement between a Photon and Stored Atomic Excitation

2006 ◽  
Vol 97 (11) ◽  
Author(s):  
H. de Riedmatten ◽  
J. Laurat ◽  
C. W. Chou ◽  
E. W. Schomburg ◽  
D. Felinto ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Atomic Excitation

scholarly journals Atomic Excitation Effects on Nuclear Resonances and Q Values

1979 ◽  
Vol 26 (1) ◽  
pp. 1223-1224 ◽  
Author(s):  
J. M. Feagin ◽  
E. Merzbacher ◽  
W. J. Thompson
Keyword(s):  
Atomic Excitation ◽  
Q Values

scholarly journals Nonempirical (double‐hybrid) density functionals applied to atomic excitation energies: A systematic basis set investigation

2020 ◽  
Vol 120 (11) ◽  
Author(s):  
Laura Hernández‐Martínez ◽  
Eric Brémond ◽  
Angel J. Pérez‐Jiménez ◽  
Emilio San‐Fabián ◽  
Carlo Adamo ◽  
...  
Keyword(s):  
Basis Set ◽  
Density Functionals ◽  
Excitation Energies ◽  
Atomic Excitation

Three-photon resonant atomic excitation in spatially incoherent laser beams

2003 ◽  
Vol 68 (4) ◽  
Author(s):  
Victor Peet ◽  
Sergei Shchemeljov
Keyword(s):  
Laser Beams ◽  
Atomic Excitation
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