Can we observe the new physics manifestations by the use of ultra-high energy cosmic neutrinos?

2017 ◽  
Vol 96 ◽  
pp. 18-23 ◽  
Author(s):  
O.M. Boyarkin ◽  
G.G. Boyarkina
Keyword(s):  
High Energy ◽  
New Physics ◽  
Ultra High Energy

Ultra High Energy Radiation from Hercules X-l; New Physics Above 100 TEV ?

1989 ◽  
pp. 215-233
Author(s):  
Gaurang B. Yodh ◽  
B. L. Dingus ◽  
J. A. Goodman ◽  
D. Krakauer ◽  
C. Y. Chang ◽  
...  
Keyword(s):  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
High Energy Radiation ◽  
Energy Radiation

scholarly journals SIGNATURES OF NEW PHYSICS FROM HBT CORRELATIONS IN UHECRS

2012 ◽  
Vol 27 (28) ◽  
pp. 1250160 ◽  
Author(s):  
RAHUL SRIVASTAVA
Keyword(s):  
High Energy ◽  
New Physics ◽  
Detailed Knowledge ◽  
Ultra High Energy ◽  
Commutation Relations ◽  
High Energy Cosmic Rays ◽  
High Energies ◽  
Fermionic Fields ◽  
Noncommutative Spacetime ◽  
Moyal Plane

Quantum fields written on noncommutative spacetime (Groenewold–Moyal plane) obey twisted commutation relations. In this paper we show that these twisted commutation relations result in Hanbury–Brown Twiss (HBT) correlations that are distinct from that for ordinary bosonic or fermionic fields, and hence can provide useful information about underlying noncommutative nature of spacetime. The deviation from usual bosonic/fermionic statistics becomes pronounced at high energies, suggesting that a natural place is to look at Ultra High Energy Cosmic Rays (UHECRs). Since the HBT correlations are sensitive only to the statistics of the particles, observations done with UHECRs are capable of providing unambiguous signatures of noncommutativity, without any detailed knowledge of the mechanism and source of origin of UHECRs.

scholarly journals At the downstream of the RF cavity of the electron storage ring there is emission of abnormal ultra-high energy electrons with energy up to 105 times of the beam energy

2021 ◽  
Author(s):  
Dapeng Qian
Keyword(s):  
Storage Ring ◽  
Beam Energy ◽  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
Electron Storage ◽  
Rf Cavity ◽  
High Energy Electrons ◽  
Relationship Of ◽  
Heisenberg's Uncertainty Principle

Abstract After considering Heisenberg's uncertainty principle, the mass-speed relationship of special relativity i.e. the Einstein-Lorentz mass formula can be extended to a more complete equation, which predicts that abnormal ultra-high energy electrons will be generated with a small probability when the electron beam passes through an accelerating electric field. The author used the accumulating detection method of a large number of events to test at the electron storage ring of BEPCII, of which results show that under the beam energy of 2GeV there is emission of abnormal ultra-high energy electrons with the highest energy reaching 400TeV at downstream of the RF cavity. For this reason, it is recommended that particle physicists conduct more experiments to fully verify this previously unknown phenomenon and further discover new physics.

scholarly journals On the acceleration of ultra-high-energy cosmic rays

2008 ◽  
Vol 366 (1884) ◽  
pp. 4417-4428 ◽  
Author(s):  
Federico Fraschetti
Keyword(s):  
Cosmic Rays ◽  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
High Energy ◽  
New Physics ◽  
Acceleration Process ◽  
Tennis Ball ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
The Past

Ultra-high-energy cosmic rays (UHECRs) hit the Earth's atmosphere with energies exceeding 10 18  eV. This is the same energy as carried by a tennis ball moving at 100 km h −1 , but concentrated on a subatomic particle. UHECRs are so rare (the flux of particles with E >10 20  eV is 0.5 km −2 per century) that only a few such particles have been detected over the past 50 years. Recently, the HiRes and Auger experiments have reported the discovery of a high-energy cut-off in the UHECR spectrum, and Auger has found an apparent clustering of the highest energy events towards nearby active galactic nuclei. Consensus is building that the highest energy particles are accelerated within the radio-bright lobes of these objects, but it remains unclear how this actually happens, and whether the cut-off is due to propagation effects or reflects an intrinsically physical limitation of the acceleration process. The low event statistics presently allows for many different plausible models; nevertheless observations are beginning to impose strong constraints on them. These observations have also motivated suggestions that new physics may be implicated. We present a review of the key theoretical and observational issues related to the processes of propagation and acceleration of UHECRs and proposed solutions.

scholarly journals The local-filament pattern in the anomalous transparency of the Universe for energetic gamma rays

2021 ◽  
Vol 81 (3) ◽  
Author(s):  
Sergey Troitsky
Keyword(s):  
Gamma Rays ◽  
Background Radiation ◽  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
Air Showers ◽  
Propagation Length ◽  
High Energies ◽  
Anomalous Transparency ◽  
The Universe

AbstractThe propagation length of high-energy photons through the Universe is limited by $$e^{+}e^{-}$$ e + e - pair production on the extragalactic background radiation. Previous studies reported discrepancies between predicted and observed attenuation, suggesting explanations in terms of new physics. However, these effects are dominated by a limited number of observed sources, while many do not show any discrepancy. Here, we consider the distribution in the sky of these apparently anomalous objects, selected in two very different approaches: the study of unphysical hardenings at distance-dependent energies in deabsorbed spectra of TeV blazars, and the observation of ultra-high-energy air showers from the directions of BL Lac type objects. In both cases, directions to the anomalous sources follow the projected local distribution of galaxies: all the distant sources, contributing to the anomalies, are seen through the local filament. This matches the prediction of the proposed earlier explanation of the anomalies based on mixing of photons with axion-like particles in the filament’s magnetic field. For ultra-high energies, this axion interpretation may be tested by the search of primary gamma rays.

scholarly journals New physics with ultra-high-energy neutrinos

2015 ◽  
Vol 748 ◽  
pp. 113-116 ◽  
Author(s):  
D. Marfatia ◽  
D.W. McKay ◽  
T.J. Weiler
Keyword(s):  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
High Energy Neutrinos ◽  
Ultra High Energy Neutrinos

scholarly journals LARGE SCALE AIR SHOWER SIMULATIONS AND THE SEARCH FOR NEW PHYSICS AT AUGER

2004 ◽  
Vol 19 (22) ◽  
pp. 3729-3760 ◽  
Author(s):  
ALESSANDRO CAFARELLA ◽  
CLAUDIO CORIANÒ ◽  
ALON E. FARAGGI
Keyword(s):  
Large Scale ◽  
Geometrical Structure ◽  
Theoretical Models ◽  
High Energy ◽  
New Physics ◽  
Ultra High Energy ◽  
Missing Energy ◽  
High Energy Cosmic Rays ◽  
Air Shower ◽  
Statistical Fluctuations

Large scale airshower simulations around the GZK cutoff are performed. An extensive analysis of the behaviour of the various subcomponents of the cascade is presented. We focus our investigation both on the study of total and partial multiplicities along the entire atmosphere and on the geometrical structure of the various cascades, in particular on the lateral distributions. The possibility of detecting new physics in Ultra High Energy Cosmic Rays (UHECR) at AUGER is also investigated. We try to disentangle effects due to standard statistical fluctuations in the first proton impact in the shower formation from the underlying interaction and comment on these points. We argue that theoretical models predicting large missing energy may have a chance to be identified, once the calibration errors in the energy measurements are resolved by the experimental collaborations, in measurements of inclusive multiplicities.

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