scholarly journals The heterodyne sensing system for the ALPS II search for sub-eV weakly interacting particles

2021 ◽  
pp. 100914
Ayman Hallal ◽  
Giuseppe Messineo ◽  
Mauricio Diaz Ortiz ◽  
Joseph Gleason ◽  
Harold Hollis ◽  
1988 ◽  
Vol 130 ◽  
pp. 509-509
Katsuhiko Sato ◽  
Masahiro Kawasaki

Recently Nagoya-Berkeley group (Matsumoto et al, 1987) observed microwave radiation in the Wien region precisely and found the excess of temperature. In the previous paper (kawasaki and Sato, 1986), we investigated the distortion of the spectrum of microwave background radiation due to the radiative decay of weakly interacting massive particles. At that time, however, the distortion was not observed. In the present paper, we investigated in detail whether the decay of WIMPs can account for the observed distortion of the spectrum or not. In Fig. 1, an example is shown.

2015 ◽  
Vol 24 (05) ◽  
pp. 1550034 ◽  
S. Bondarenko ◽  
K. Komoshvili

Transport properties of a charged droplet of weakly interacting particles in transverse electric field are investigated. Nonequilibrium, time-dependent distribution function which describes a process of the droplet transverse evolution with constant entropy in the field is calculated. With the help of this distribution function, shear viscosity coefficients in the transverse plane are calculated as well. They are found to be dependent on the ratio of the potential energy of the droplet in the electric field to the kinetic energy of the droplet; for weakly interacting particles, this parameter is small. Additionally, these coefficients are time-dependent and change during the hydrodynamical state of the droplet's expansion. Applicability of the results to the description of initial states of quark–gluon plasma (QGP) obtained in high-energy interactions of nuclei is also discussed.

Nonlinearity ◽  
2020 ◽  
Vol 33 (2) ◽  
pp. 864-891 ◽  
Federico Cornalba ◽  
Tony Shardlow ◽  
Johannes Zimmer

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