Electromagnetic decay of Monopole–Antimonopole pair

2018 ◽  
Vol 33 (12) ◽  
pp. 1850068 ◽  
Author(s):  
Giorgio Calucci
Keyword(s):  
Multiplicity Distribution ◽  
Electromagnetic Decay ◽  
Angular Correlations ◽  
Electron Positron ◽  
Perturbative Treatment

A Monopole–Antimonopole pair could annihilate producing a photon shower: Some aspects of the shower like the multiplicity distribution and angular correlations are investigated within a model suitable for processes with high multiplicities and therefore difficult to deal with standard perturbative treatment. The possible production of electron–positron pairs is also considered.

OSCILLATORY MOMENTS IN LEE-YANG ZEROS AND LHC PREDICTIONS

2009 ◽  
Vol 24 (18n19) ◽  
pp. 3447-3454 ◽  
Author(s):  
A. DEWANTO ◽  
A. H. CHAN ◽  
Z. H. LIM ◽  
C. H. OH
Keyword(s):  
Experimental Data ◽  
Quantum Chromodynamics ◽  
Generating Function ◽  
Multiplicity Distribution ◽  
High Energy ◽  
Energy Collision ◽  
Oscillatory Behaviour ◽  
High Energy Collision ◽  
Electron Positron ◽  
Scattering Events

We study the moments of multiplicty distribution and its relation to the Lee-Yang zeros of the generating function in electron-positron and hadron-hadron high energy collision. Our work shows that GMD moments can reproduce the oscillatory behaviour as shown in the experimental data and predicted by quantum chromodynamics at preasymptotic energy, while it can also be used to distinguish electron-positron (e+e-) multiplicity data from hadron-hadron (pp and [Formula: see text]) multiplicity. Furthermore, there seems to be a link between the development of shoulder structure in the multiplicity distribution and the development of ear structure in the Lee-Yang zeros. We predict that these structures is going to be very obvious at 14 TeV. We argue that the development of these structures indicates an ongoing transition from quark-dominated soft scattering events to gluon-dominated semihard scattering events.

scholarly journals Sensitivity of Discrete Symmetry Tests in the Positronium System with the J-PET Detector

Symmetry ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1268
Author(s):  
Aleksander Gajos
Keyword(s):  
Detection System ◽  
Discrete Symmetry ◽  
Bound State ◽  
Emission Tomography ◽  
Angular Correlations ◽  
Leptonic Sector ◽  
Positron Emission ◽  
Electron Positron ◽  
Order Of Magnitude ◽  
Symmetry Tests

Study of certain angular correlations in the three-photon annihilations of the triplet state of positronium, the electron–positron bound state, may be used as a probe of potential CP and CPT-violating effects in the leptonic sector. We present the perspectives of CP and CPT tests using this process recorded with a novel detection system for photons in the positron annihilation energy range, the Jagiellonian Positron Emission Tomography (J-PET). We demonstrate the capability of this system to register three-photon annihilations with an unprecedented range of kinematical configurations and to measure the CPT-odd correlation between positronium spin and annihilation plane orientation with a precision improved by at least an order of magnitude with respect to present results. We also discuss the means to control and reduce detector asymmetries in order to allow J-PET to set the first measurement of the correlation between positronium spin and momentum of the most energetic annihilation photon which has never been studied to date.

scholarly journals Angular Correlations of Coincident Electron-Positron Pairs Produced in Heavy-Ion Collisions with Nuclear Time Delay

1988 ◽  
Vol 61 (25) ◽  
pp. 2831-2834 ◽  
Author(s):  
O. Graf ◽  
J. Reinhardt ◽  
B. Müller ◽  
W. Greiner ◽  
G. Soff
Keyword(s):  
Time Delay ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Angular Correlations ◽  
Ion Collisions ◽  
Electron Positron

Angular correlations of electron-positron pairs produced in heavy-ion collisions

1987 ◽  
Vol 328 (1) ◽  
pp. 81-84 ◽  
Author(s):  
O. Graf ◽  
J. Reinhardt ◽  
T. Reus ◽  
B. M�ller ◽  
W. Greiner ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Angular Correlations ◽  
Ion Collisions ◽  
Electron Positron

scholarly journals Multiplicity distribution of electron-positron pairs created by strong external fields

1992 ◽  
Vol 46 (1) ◽  
pp. 261-269 ◽  
Author(s):  
Christoph Best ◽  
Walter Greiner ◽  
Gerhard Soff
Keyword(s):  
Multiplicity Distribution ◽  
External Fields ◽  
Electron Positron

Multifractal Crossover in the Multiplicative Processes

Fractals ◽  
1997 ◽  
Vol 05 (04) ◽  
pp. 661-663
Author(s):  
A. Bershadskii
Keyword(s):  
Experimental Data ◽  
Multiplicity Distribution ◽  
Effective Capacity ◽  
Recent Experimental Data ◽  
Space Filling ◽  
High Energies ◽  
Capacity Dimension ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Multiplicative Processes

It is shown, using multifractal data on space-filling bearings, that there exists a multifractal crossover to an effective 'capacity' dimension in some multiplicative processes. This result is then used to interpret recent experimental data on multifractal structure of multiplicity distribution in electron-positron annihilation at high energies.

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