scholarly journals Ultra-high energy collisions of nonequatorial geodesic particles near dirty black holes

2012 ◽  
Vol 2012 (12) ◽  
Author(s):  
Oleg B. Zaslavskii
2020 ◽  
Vol 29 (1) ◽  
pp. 40-46
Author(s):  
Dmitri L. Khokhlov

AbstractThe studied conjecture is that ultra high energy cosmic rays (UHECRs) are hypothetical Planck neutrinos arising in the decay of the protons falling onto the gravastar. The proton is assumed to decay at the Planck scale into positron and four Planck neutrinos. The supermassive black holes inside active galactic nuclei, while interpreted as gravastars, are considered as UHECR sources. The scattering of the Planck neutrinos by the proton at the Planck scale is considered. The Planck neutrinos contribution to the CR events may explain the CR spectrum from 5 × 1018 eV to 1020 eV. The muon number in the Planck neutrinos-initiated shower is estimated to be larger by a factor of 3/2 in comparison with the standard model that is consistent with the observational data.


2016 ◽  
Vol 94 (10) ◽  
Author(s):  
James Healy ◽  
Ian Ruchlin ◽  
Carlos O. Lousto ◽  
Yosef Zlochower

Author(s):  
P. CHARDONNET ◽  
A. MATTEI ◽  
R. RUFFINI ◽  
C. L. BIANCO ◽  
F. FRASCHETTI ◽  
...  

2016 ◽  
Vol 31 (02n03) ◽  
pp. 1641016
Author(s):  
A. A. Grib ◽  
Yu. V. Pavlov

Three mechanisms of getting high energies in particle collisions in the ergosphere of the rotating black holes are considered. The consequences of these mechanisms for observation of ultra high energy cosmic rays particles on the Earth as result of conversion of superheavy dark matter particles into ordinary particles are discussed.


2020 ◽  
Vol 636 ◽  
pp. C3
Author(s):  
Claire Guépin ◽  
Kumiko Kotera ◽  
Enrico Barausse ◽  
Ke Fang ◽  
Kohta Murase

2013 ◽  
Vol 111 (4) ◽  
Author(s):  
Ulrich Sperhake ◽  
Emanuele Berti ◽  
Vitor Cardoso ◽  
Frans Pretorius

2007 ◽  
Vol 16 (09) ◽  
pp. 2872-2875 ◽  
Author(s):  
PEDRO VIANA ◽  
EDUARDO S. FRAGA ◽  
JOÃO R. T. DE MELO NETO

We investigate the production of disoriented chiral condensates in ultra high energy collisions and look for an intrinsic signature they could produce in ongoing and future cosmic ray experiments. This is implemented by studying the atmospheric showers generated after the chiral symmetry breakdown. We also speculate on the nature of the events and its connection with Centauro and anti-Centauro observations. Some preliminary results are presented.


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