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Strong (B >> 10^9 G) and superstrong (B > 10^{14} G) magnetic fields profoundly affect many thermodynamic and kinetic characteristics of dense plasmas in neutron star envelopes. In particular, they produce strongly anisotropic thermal…

天体物理学 · 物理学 2008-11-26 A. Y. Potekhin , G. Chabrier , D. G. Yakovlev

The impact of strong magnetic fields B>10e13 G on the thermal evolution of neutron stars is investigated, including crustal heating by magnetic field decay. For this purpose, we perform 2D cooling simulations with anisotropic thermal…

天体物理学 · 物理学 2010-11-11 Deborah N. Aguilera , José A. Pons , Juan A. Miralles

The low-energy two neutrino-two photon interactions in the presence of homogeneous magnetic field are studied. The cross sections in external magnetic field are shown to be larger than in vacuum by factor $\sim (m_W /m_e) ^4(B/B_c) ^2$. The…

高能物理 - 唯象学 · 物理学 2008-02-03 Shaisultanov R

In this article the neutrino bremsstrahlung process is considered in presence of strong magnetic field, though the calculations for this process in absence of magnetic field are also carried out simultaneously. The electrons involved in…

高能物理 - 唯象学 · 物理学 2008-11-26 Indranath Bhattacharyya

Neutrinos are neutral in the Standard Model, but they have tiny charge radii generated by radiative corrections. In theories Beyond the Standard Model, neutrinos can also have magnetic and electric moments and small electric charges…

高能物理 - 唯象学 · 物理学 2024-11-26 Carlo Giunti , Konstantin Kouzakov , Yu-Feng Li , Alexander Studenikin

We consider the generation and evolution of magnetic field in a primordial plasma at temperature T < 1 MeV in presence of asymmetric neutrino background i.e. the number densities of right- handed and left-handed neutrinos are not same.…

高能物理 - 唯象学 · 物理学 2017-05-31 Jitesh R. Bhatt , Manu George

The main goal of the paper is to give a short review on neutrino electromagnetic properties. In the introductory part of the paper a summary on what we really know about neutrinos is given: we discuss the basics of neutrino mass and mixing…

高能物理 - 唯象学 · 物理学 2015-03-13 Carlo Giunti , Alexander Studenikin

The radiative decay of the massive neutrino $\nu_i \rightarrow \nu_j \gamma ( m_i > m_j )$ in the external electromagnetic field is analyzed in detail in the framework of the standard model with lepton mixing. It is shown, that a sort of a…

高能物理 - 唯象学 · 物理学 2007-05-23 A. A. Gvozdev , N. V. Mikheev , L. A. Vassilevskaya

We study the neutrino interaction rates through charged as well as neutral current weak interactions in hot, dense magnetized matter. At densities near the neutrino sphere, matter in the presence of intense magnetic field is polarized and…

高能物理 - 唯象学 · 物理学 2010-01-06 Ashok Goyal

Weak magnetism increases antineutrino mean free paths in core collapse supernovae. The parity violating interference between axial and vector currents makes antineutrino-nucleon cross sections smaller then those for neutrinos. We calculate…

天体物理学 · 物理学 2014-10-13 C. J. Horowitz

The sensitivity of the differential cross section of the interaction between neutrino-electron with dense matter to the possibly nonzero neutrino electromagnetic properties has been investigated. Here, the relativistic mean field model…

核理论 · 物理学 2008-11-26 A. Sulaksono , C. K. Williams , P. T. P. Hutauruk , T. Mart

A first principle derivation is given of the neutrino damping rate in real-time thermal field theory. Starting from the discontinuity of the neutrino self energy at the two loop level, the damping rate can be expressed as integrals over…

高能物理 - 理论 · 物理学 2009-11-07 Eduardo S. Tututi , Manuel Torres , Juan Carlos D'Olivo

The recent measurement by Bignami and co-workers of the magnetic field of a neutron star for the first time gives a value that differs by about two orders of magnitude from the expected value. The speculation has been that the nuclear…

综合物理 · 物理学 2007-05-23 B. G. Sidharth

A review of the neutrino conversion and oscillations among the two neutrino species (active and sterile) induced by strong twisting magnetic field is presented and implications to neutrinos in neutron star, supernova, the Sun and…

天体物理学 · 物理学 2008-02-03 A. M. Egorov , G. G. Likhachev , A. I. Studenikin

We examine the physics of the early universe when Majorana neutrinos (electron neutrino, muon neutrino, tau neutrino) possess transition magnetic moments. These extra couplings beyond the usual weak interaction couplings alter the way…

宇宙学与河外天体物理 · 物理学 2015-12-30 N. Vassh , E. Grohs , A. B. Balantekin , G. M. Fuller

The impact of a weak electric field on the weak-localization corrections is studied within the framework of a nonlinear sigma-model. Two scaling regimes are obtained. In one, the scaling is dominated by temperature; in the other, by the…

统计力学 · 物理学 2009-11-10 O. Bleibaum , D. Belitz

A review on the Lorentz invariant treatment of neutrino spin and flavour oscillations in moving and polarized matter is presented. Within this approach it becomes possible to consider neutrino oscillations in arbitrary electromagnetic…

高能物理 - 唯象学 · 物理学 2007-05-23 A. I. Studenikin

The connection between cosmological observations and neutrino physics is discussed in detail. Neutrinos decouple from thermal contact in the early Universe at a temperature of order 1 MeV which coincides with the temperature where light…

高能物理 - 唯象学 · 物理学 2008-11-26 Steen Hannestad

The equation of state of neutron matter is affected by the presence of a magnetic field due to the intrinsic magnetic moment of the neutron. Here we study the equilibrium configuration of this system for a wide range of densities,…

核理论 · 物理学 2014-10-15 R. Aguirre , E. Bauer , I. Vidaña

We show the existence of a strong trend between neutron star surface temperature and the dipolar component of the magnetic field extending through three orders of field magnitude, a range that includes magnetars, radio-quiet isolated…

天体物理学 · 物理学 2008-11-26 J. A. Pons , B. Link , J. A. Miralles , U. Geppert