English
Related papers

Related papers: Nucleon effects on the photon dispersion relations…

200 papers

We calculate the nucleon contribution to the electromagnetic vertex of a neutrino in a background of particles, including the effect of the anomalous magnetic moment of the nucleons. Explicit formulas for the form factors are given in…

High Energy Physics - Phenomenology · Physics 2009-10-30 Juan Carlos D'Olivo , Jose F. Nieves

In a medium that contains a neutrino background in addition to the matter particles, the neutrinos contribute to the photon self-energy as a result of the effective electromagnetic vertex that they acquire in the presence of matter. We…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jose F. Nieves

Mohanty and Samal have shown that the magnetic-moment interaction with nucleons contributes significantly to the photon dispersion relation in a supernova core, and with an opposite sign relative to the usual plasma effect. Because of a…

High Energy Physics - Phenomenology · Physics 2009-10-30 Georg G. Raffelt

We study the electromagnetic properties of a system that consists of an electron background and a neutrino gas that may be moving or at rest, as a whole, relative to the background. The photon self-energy for this system is characterized by…

High Energy Physics - Phenomenology · Physics 2009-11-11 Jose' F. Nieves , Sarira Sahu

Neutrino dispersion properties in an active medium consisting of magnetic field and plasma are analysed. We consider in detail the contribution of a magnetic field into the neutrino self-energy operator Sigma (p). The results for this…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. V. Kuznetsov , N. V. Mikheev

A new mechanism of photon emission in the quark-gluon plasma is proposed. Photon dispersion relation in the presence of the $CP$-odd topological regions generated by the chiral anomaly acquires an imaginary mass. It allows photon radiation…

High Energy Physics - Phenomenology · Physics 2019-07-03 Kirill Tuchin

We review recent series of articles considering electromagnetic effects in self-gravitating systems of nuclear matter. The results find their explicit application within the theory of neutron stars.

Solar and Stellar Astrophysics · Physics 2012-10-29 Kuantay Boshkayev , Michael Rotondo , Remo Ruffini

The relativistic structure of the self-energy of a nucleon in nuclear matter is investigated including the imaginary and real components which arise from the terms of first and second order in the NN interaction. A parameterized form of…

Nuclear Theory · Physics 2009-10-30 A. Trasobares , A. Polls , A. Ramos , H. Müther

The neutrino dispersion in the charge symmetric magnetized plasma is investigated. We have studied the plasma contribution into the additional energy of neutrino and obtained the simple expression for it. We consider in detail the neutrino…

High Energy Physics - Phenomenology · Physics 2008-12-03 N. V. Mikheev , E. N. Narynskaya

The helicity changing Cerenkov radiation in a supernova core was used earlier to put a restrictive bound on the neutrino magnetic moment. Subsequently it was pointed out, that this result was based on a numerical error in the calculationn…

High Energy Physics - Phenomenology · Physics 2007-05-23 Subhendra Mohanty , Sarira Sahu

We investigate single-particle properties in infinite nuclear matter using a variety of interactions. One of the focal points is to study the impact of chiral three-nucleon forces on the nucleon self-energy and related quantities, such as…

Nuclear Theory · Physics 2020-12-10 Francesca Sammarruca , Herbert Muether , Ruprecht Machleidt

The anomalous part of the magnetic moment of nucleon is studied. The electromagnetic vertex of nucleon is calculated using the pseudovector coupling pion-nucleon interaction. The self-energy of nucleon suggested in the previous study is…

Nuclear Theory · Physics 2018-09-05 Susumu Kinpara

We develop the theory of spin light of neutrino in matter ($SL\nu$) and include the effect of plasma influence on the emitted photon. We use the special technique based on exact solutions of particles wave equations in matter to perform all…

High Energy Physics - Phenomenology · Physics 2015-06-05 A. Grigoriev , A. Lokhov , A. Studenikin , A. Ternov

We present a comprehensive and pedagogic discussion of the properties of photons in cold and dense nuclear matter based on the resummed one-loop photon self energy. Correlations between electrons, muons, protons and neutrons in beta…

High Energy Astrophysical Phenomena · Physics 2018-04-18 Stephan Stetina , Ermal Rrapaj , Sanjay Reddy

The influence of strongly magnetized electron-positron plasma on the radiative neutrino transition $\nng$ is investigated. The probability and mean losses of the neutrino energy and momentum are calculated taking account of the photon…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. V. Chistyakov , N. V. Mikheev

While the photon forward-scattering amplitude on free magnetic dipoles (e.g. free neutrons) vanishes, the nucleon magnetic moments still contribute significantly to the photon dispersion relation in a supernova (SN) core where the nucleon…

Astrophysics · Physics 2009-10-30 A. Kopf , G. Raffelt

We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at which quantum electrodynamics will play a…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Marklund , P. K. Shukla

We present arguments in favor of the presence of free neutrons in plasmas generated by compact astrophysical objects and find conditions necessary for the formation of the neutron component. The broad range of phenomena caused by neutrons…

Astrophysics · Physics 2007-05-23 A. A. Belyanin , E. V. Derishev , V. V. Kocharovsky , Vl. V. Kocharovsky

I review the results of a recent dispersion--theoretical analysis of the nucleon electromagnetic form factors and comment on the strangeness form factors. The need for a better data basis at low, intermediate and large momentum transfer is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ulf-G. Meißner

We investigate the possibility of measuring the pion dispersion relation in nuclear matter through the anomalous coupling in the reaction \gamma - \gamma' \pi_0. It is shown that this reaction permits the study of pionic modes for…

Nuclear Theory · Physics 2008-11-26 Alexander Volya , Kevin Haglin , Scott Pratt , Vladimir Dmitriev
‹ Prev 1 2 3 10 Next ›