scholarly journals Role of Bloch waves in baryon-number violating processes

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Yu-Cheng Qiu ◽  
S.-H. Henry Tye
Keyword(s):  
Baryon Number ◽  
Bloch Waves

THE ROLE OF THE NUCLEAR MATTER COMPRESSION MODULUS IN NEUTRON STARS

2004 ◽  
Vol 13 (07) ◽  
pp. 1519-1524 ◽  
Author(s):  
VERÔNICA A. DEXHEIMER ◽  
CÉSAR A. Z. VASCONCELLOS ◽  
MOISÉS RAZEIRA ◽  
MANFRED DILLIG
Keyword(s):  
Neutron Stars ◽  
Nuclear Matter ◽  
Body Problem ◽  
Mean Field Theory ◽  
Mean Field ◽  
Compression Modulus ◽  
Baryon Number ◽  
Many Body ◽  
Relativistic Mean Field

For the nuclear many body problem at high densities, formulated in the framework of a relativistic mean-field theory, we investigate in detail the compression modulus of nuclear matter as a function of the effective nucleon mass. We include consistently in our modelling chemical equilibrium as well as baryon number and electric charge conservation and investigate properties of neutron stars. Among other predictions we focus on the dependence of the maximum mass of a sequence of neutron stars as a function of the compression modulus and the nucleon effective mass.

scholarly journals van der Waals Interactions and Hadron Resonance Gas: Role of resonance widths modeling on conserved charges fluctuations

2018 ◽  
Vol 171 ◽  
pp. 14006
Author(s):  
Volodymyr Vovchenko ◽  
Paolo Alba ◽  
Mark I. Gorenstein ◽  
Horst Stoecker
Keyword(s):  
Lattice Qcd ◽  
Temperature Region ◽  
Van Der Waals ◽  
Baryon Number ◽  
The Other ◽  
Van Der Waals Interactions ◽  
Crossover Temperature ◽  
Lattice Data ◽  
The Ideal

The quantum van der Waals (QvdW) extension of the ideal hadron resonance gas (HRG) model which includes the attractive and repulsive interactions between baryons – the QvdW-HRG model – is applied to study the behavior of the baryon number related susceptibilities in the crossover temperature region. Inclusion of the QvdW interactions leads to a qualitatively different behavior of susceptibilities, in many cases resembling lattice QCD simulations. It is shown that for some observables, in particular for χBQ11/χB2, effects of the QvdW interactions essentially cancel out. It is found that the inclusion of the finite resonance widths leads to an improved description of χB2, but it also leads to a worse description of χBQ11/χB2, as compared to the lattice data. On the other hand, inclusion of the extra, unconfirmed baryons into the hadron list leads to a simultaneous improvement in the description of both observables.

scholarly journals SO(10)À LA PATI–SALAM

2005 ◽  
Vol 20 (04) ◽  
pp. 865-893 ◽  
Author(s):  
CHARANJIT S. AULAKH ◽  
AARTI GIRDHAR
Keyword(s):  
Field Theory ◽  
Neutrino Mass ◽  
Model Building ◽  
Baryon Number ◽  
Discrete Symmetry ◽  
Explicit Method ◽  
Mass Matrices ◽  
Baryon Number Violation ◽  
Explicit Analysis

To facilitate explicit analysis of SO (10) GUT's we present rules for rewriting SO (10) tensor and spinor invariants in terms of invariants of its "Pati–Salam" maximal subgroup ( SU (4)× SU (2) L × SU (2) R ) supplemented by the discrete symmetry called D parity. Explicit decompositions of quadratic and cubic invariants relevant to GUT model building are presented and the role of D parity in organizing the terms explained. Our rules provide a complete and explicit method for obtaining the "Clebsch–Gordon" coefficients for SO (10)↔ SU (4)× SU (2) L × SU (2) R in a notation appropriate for field theory models. We illustrate the usefulness our methods by calculating previously unavailable mass matrices and couplings of the SU (2) L doublets and SU (3)c triplets in the minimal SUSY SO (10) GUT which are essential to specify the phenomenology of this model. We also present the bare effective potential for baryon number violation in this model and show that it receives novel contributions from exchange of triplet Higgsinos contained the in "neutrino mass" Higgs submultiplets [Formula: see text]. This further tightens the emerging connection between neutrino mass and proton decay.

scholarly journals Ratchet baryogenesis and an analogy with the forced pendulum

2018 ◽  
Vol 33 (17) ◽  
pp. 1850097
Author(s):  
Kazuharu Bamba ◽  
Neil D. Barrie ◽  
Akio Sugamoto ◽  
Tatsu Takeuchi ◽  
Kimiko Yamashita
Keyword(s):  
Molecular Motors ◽  
Driving Force ◽  
Baryon Number ◽  
Number Density ◽  
Directed Motion ◽  
Complex Scalar ◽  
Ratchet Mechanism ◽  
Complex Scalar Field ◽  
Forced Pendulum

A new scenario of baryogenesis via the ratchet mechanism is proposed based on an analogy with the forced pendulum. The oscillation of the inflaton field during the reheating epoch after inflation plays the role of the driving force, while the phase [Formula: see text] of a scalar baryon field (a complex scalar field with baryon number) plays the role of the angle of the pendulum. When the inflaton is coupled to the scalar baryon, the behavior of the phase [Formula: see text] can be analogous to that of the angle of the forced pendulum. If the oscillation of the driving force is adjusted to the pendulum’s motion, a directed rotation of the pendulum is obtained with a nonvanishing value of [Formula: see text], which models successful baryogenesis since [Formula: see text] is proportional to the baryon number density. Similar ratchet models which lead to directed motion have been used in the study of molecular motors in biology. There, the driving force is supplied by chemical reactions, while in our scenario this role is played by the inflaton during the reheating epoch.

Role of confined Bloch waves in the near field heat transfer between two photonic crystals

2011 ◽  
Vol 112 (8) ◽  
pp. 1314-1322 ◽  
Author(s):  
Andrey Pryamikov ◽  
Karl Joulain ◽  
Philippe Ben-Abdallah ◽  
Jérémie Drevillon
Keyword(s):  
Heat Transfer ◽  
Photonic Crystals ◽  
Near Field ◽  
Bloch Waves

scholarly journals QUANTUM HADRODYNAMICS IN TWO DIMENSIONS

1994 ◽  
Vol 09 (31) ◽  
pp. 5583-5624 ◽  
Author(s):  
S.G. RAJEEV
Keyword(s):  
Phase Space ◽  
Condensed Matter ◽  
Baryon Number ◽  
Two Dimensions ◽  
Topological Solitons ◽  
Infinite Dimensional ◽  
Hartree Fock ◽  
Finite Dimensional ◽  
Natural Formulation

A nonlocal and nonlinear theory of hadrons, equivalent to the color singlet sector of two-dimensional QCD, is constructed. The phase space of this theory is an infinite-dimensional Grassmannian. The baryon number of QCD corresponds to a topological invariant (“virtual rank”) of the Grassmannian. It is shown that the hadron theory has topological solitons corresponding to the baryons of QCD. [Formula: see text] plays the role of ħ in this theory; Nc must be an integer for topological reasons. We also describe the quantization of a toy model with a finite-dimensional Grassmannian as the phase space. In an appendix, we show that the usual Hartree-Fock theory of atomic and condensed matter physics has a natural formulation in terms of infinite-dimensional Grassmannians.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

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