M. Prakash

ORCID: 0000-0001-7069-3664
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Research Areas
  • High-Energy Particle Collisions Research
  • Ionosphere and magnetosphere dynamics
  • Nuclear physics research studies
  • Pulsars and Gravitational Waves Research
  • Quantum Chromodynamics and Particle Interactions
  • Solar and Space Plasma Dynamics
  • Geophysics and Sensor Technology
  • Gamma-ray bursts and supernovae
  • Cold Atom Physics and Bose-Einstein Condensates
  • Astronomical and nuclear sciences
  • Magnetic confinement fusion research
  • Geophysics and Gravity Measurements
  • Geomagnetism and Paleomagnetism Studies
  • High-pressure geophysics and materials
  • Atomic and Subatomic Physics Research
  • Particle physics theoretical and experimental studies
  • Cosmology and Gravitation Theories
  • Earthquake Detection and Analysis
  • Quantum chaos and dynamical systems
  • Astro and Planetary Science
  • Astrophysical Phenomena and Observations
  • Advanced Chemical Physics Studies
  • Autopsy Techniques and Outcomes
  • Pesticide Exposure and Toxicity
  • Quantum Mechanics and Non-Hermitian Physics

Dr. Hari Singh Gour University
2023

All India Institute of Medical Sciences Bhubaneswar
2023

Dayananda Sagar University
2023

Institute of Medical Sciences
2023

Stony Brook University
1994-2008

State University of New York
1984-2008

University of Alberta
2001-2003

University of California, Santa Barbara
1997

Columbia University
1986

Princeton Plasma Physics Laboratory
1986

We study the effects of very strong magnetic fields on equation state (EOS) in multicomponent, interacting matter by developing a covariant description for inclusion anomalous moments nucleons. For neutron star matter, we employ field-theoretical approach, which permits several models that differ their behavior at high density. Effects Landau quantization ultrastrong (B > 1014 G) lead to reduction electron chemical potential and substantial increase proton fraction. find generic result B...

10.1086/309010 article EN The Astrophysical Journal 2000-07-01

view Abstract Citations (196) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Rapid Cooling of Neutron Stars by Hyperons and Delta Isobars Prakash, Madappa ; Manju Lattimer, James M. Pethick, C. J. Direct Urca processes with hyperons and/or nucleon isobars can occur in dense matter as long the concentration Lambda exceeds a critical value that is less than 3 percent typically about 0.1 percent. The neutrino luminosities from hyperon are 5-100...

10.1086/186376 article EN The Astrophysical Journal 1992-05-01

Models that are successful in hadronic spectroscopy, viz., the nonrelativistic quark model, bag models, and QCD sum rules, used to shed light on Okamoto-Nolen-Schiffer anomaly nuclear physics.

10.1103/physrevc.42.2212 article EN Physical Review C 1990-11-01

10.1016/0375-9474(84)90246-x article EN Nuclear Physics A 1984-10-01

A unified approach is used to describe quasielastic and fusion processes in heavy-ion reactions at near barrier energies. The spin distributions for are conjunction with transition-state theory calculate fission fragment angular distributions. Results the reaction $^{16}\mathrm{O}$ + $^{208}\mathrm{Pb}$ show that when transfer contributions small, satisfactory agreement data obtained. role of anisotropy as a useful probe entrance channel effects energies close pointed out.

10.1103/physrevlett.53.333 article EN Physical Review Letters 1984-07-23

We study various nonequilibrium properties of a mixture comprised pions, kaons, and nucleons. Quantitative calculations the relaxation/collision times, degradation momentum in elastic collisions, relaxation times shear heat flows, drag flow, diffusion flow are performed. Binary interactions specified through empirical phase shifts. The heavier kaons nucleons found to equilibrate more slowly than pions. These results shed new light on influence collective effects transverse distributions...

10.1103/physrevlett.70.1228 article EN Physical Review Letters 1993-03-01

10.1016/s0375-9474(98)00309-1 article EN Nuclear Physics A 1998-08-01

Chaos and nonlinear dynamics of a bouncing proton in the presence kinetic Alfvén wave magnetosphere are studied. Particle motion is traced numerically phase space using Poincaré surface section technique. With suitable initial conditions particle trajectories calculated under paraxial approximation for several values amplitude. The show chaotic behavior at some finite amplitude wave. threshold electrostatic field computed onset chaos less than expected electric associated with magnetosphere....

10.1029/ja094ia03p02497 article EN Journal of Geophysical Research Atmospheres 1989-03-01

The structure of auroral arcs sustained by field line resonances (FLRs) is determined using a model that describes the interplay between ionospheric feedback, nonlinear, and dispersive effects in curvilinear geomagnetic topology. includes modulation Pedersen conductance hundreds eV electrons precipitate ionosphere through action shear Alfvén wave field‐aligned currents (FACs). competition feedback dissipation, dispersion, nonlinearity results large‐amplitude, long‐period oscillations FAC,...

10.1029/2002ja009383 article EN Journal of Geophysical Research Atmospheres 2003-03-26

Prompt emission of nucleons is observed in time-dependent Hartree-Fock calculations $^{16}\mathrm{O}$+$^{93}\mathrm{Nb}$ collisions. These are emitted the forward direction about 2\ifmmode\times\else\texttimes\fi{}10$^{\ensuremath{-}22}\mathrm{s}$ after contact ions, with a mean velocity somewhat less than beam velocity. At $E(\mathrm{lab})=204$ MeV, estimated total nucleon cross section \ensuremath{\sim}230 mb. For central collisions lower energy threshold 130 MeV established. Force...

10.1103/physrevc.25.1432 article EN Physical Review C 1982-03-01

The exact penetrability for an inverted biharmonic oscillator potential is calculated and compared with that obtained from the WKB method.

10.1088/0305-4470/9/11/009 article EN Journal of Physics A Mathematical and General 1976-11-01

Abstract. The present work examines the effects arising from nonlinear Landau damping and bounced motion of protons (trapped in mirror geometry geomagnetic field) formation Alfvénic structures. These structures are observed at distances 1-5AU solar wind plasma (with ß ~ 1). dynamics these can be understood using kinetic Schrodinger (KNLS) model. emerge due to balance steepening (of large amplitude Alfvén waves) by linear ion-acoustic modes a finite plasma. mode is driven nonlinearly waves....

10.5194/npg-6-161-1999 article EN cc-by-nc-sa Nonlinear processes in geophysics 1999-12-31

An earlier penetrability calculation through a triple-humped barrier for $^{234}\mathrm{Th}$ nucleus by Sharma and Leboeuf failed to reproduce the right order of magnitude penetrability. It is shown here that one can obtain correct assuming Back et al. actually determined parameters second saddle, third minimum, saddle from an analysis their ($t, \mathrm{pf}$) fission data. The height first assumed be given microscopic calculations this nucleus.NUCLEAR REACTIONS, FISSION Fission calculated...

10.1103/physrevc.18.1531 article EN Physical Review C 1978-09-01

The nucleon exchange process in deep-inelastic collisions is investigated by studying the one-way current constructed using Wigner transform of time-dependent Hartree-Fock one-body density matrix. Detailed calculations for head-on $^{16}\mathrm{O}$+$^{16}\mathrm{O}$ at three different bombarding energies have been performed. A combination two simple models contributions from relative motion and tunneling shown to predict currents close results.

10.1103/physrevlett.47.898 article EN Physical Review Letters 1981-09-28

Abstract Background Post-mortem animal predation affects human corpses in various ways. Lesions are a characteristic of the type terrestrial or aquatic predators. These lesions can be misinterpreted and may challenging for forensic pathologist. Different species freshwater cause different types depending on their feeding habits. There is paucity literature about post-mortem caused by animals. Case presentation A 24-year-old man had accidentally drowned while fishing River Cauvery. His body...

10.1186/s41935-023-00323-8 article EN cc-by Egyptian Journal of Forensic Sciences 2023-01-19
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