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Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 09/2008, Volume 78, Issue 6
We derive big-bang nucleosynthesis (BBN) constraints on both unstable and stable gravitino taking account of recent progress in theoretical study of the BBN... 
EARLY UNIVERSE | LATE-DECAYING PARTICLES | THERMAL LEPTOGENESIS | ASTRONOMY & ASTROPHYSICS | PRIMORDIAL LITHIUM | DARK-MATTER SCENARIOS | COSMOLOGICAL CONSTRAINTS | DYNAMICAL SUPERSYMMETRY BREAKING | LIGHT-ELEMENTS | INFLATON DECAY | ABUNDANCE | PHYSICS, PARTICLES & FIELDS
Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 2006, Volume 74, Issue 4
We show that the gravitino-overproduction problem is prevalent among inflation models in supergravity. An inflaton field phi generically acquires (effective)... 
ENERGY EQUIVALENCE THEOREM | BIG-BANG NUCLEOSYNTHESIS | CHAOTIC INFLATION | BROKEN SUPERGRAVITY | ASTRONOMY & ASTROPHYSICS | D-TERM INFLATION | COSMOLOGICAL CONSTRAINTS | DECAYING PARTICLES | DYNAMICAL SUPERSYMMETRY BREAKING | LIGHT-ELEMENTS | HYBRID INFLATION | PHYSICS, PARTICLES & FIELDS
Journal Article
Physics Letters B, ISSN 0370-2693, 05/2004, Volume 588, Issue 1-2, pp. 7 - 16
We consider the possibility that the gravitino might be the lightest supersymmetric particle (LSP) in the constrained minimal extension of the Standard Model... 
MINIMAL SUPERGRAVITY | PHYSICS, MULTIDISCIPLINARY | REGENERATION | LIGHT | SUPERSYMMETRY-BREAKING MODELS | NUCLEOSYNTHESIS | RELIC DENSITY | UNIVERSE | WMAP | Physics - High Energy Physics - Phenomenology
Journal Article
Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, 09/2006, Volume 2006, Issue 9, pp. 001 - 1
Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 07/2014, Volume 90, Issue 2
We study resonant gravitino production in the early Universe in the presence of SUSY flat directions whose large vacuum expectation values (VEVs) break some... 
STANDARD MODEL | BREAKING | COSMOLOGY | MSSM | ASTRONOMY & ASTROPHYSICS | DARK-MATTER | CONSTRAINTS | Q-BALLS | INFLATIONARY UNIVERSE | LIGHT-ELEMENTS | BARYOGENESIS | PHYSICS, PARTICLES & FIELDS
Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 06/2015, Volume 91, Issue 12
We revisit astrophysical constraints on models with an ultralight gravitino, in particular extending the analysis to more general models and the case of... 
ASTROPHYSICAL CONSTRAINTS | SUPERLIGHT GRAVITINO | SUPERGRAVITY | CHIRAL SCALAR | ASTRONOMY & ASTROPHYSICS | LIGHT | MASS | COSMOLOGICAL CONSTRAINTS | DYNAMICAL SUPERSYMMETRY BREAKING | BAYESIAN-INFERENCE | NEUTRINO BURST | PHYSICS, PARTICLES & FIELDS
Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 2006, Volume 73, Issue 12
We study the effects of unstable gravitino on big-bang nucleosynthesis. If the gravitino mass is smaller than similar to 10 TeV, primordial gravitinos produced... 
DEUTERIUM ABUNDANCE | PRIMORDIAL HELIUM ABUNDANCE | COSMOLOGICAL BARYON DENSITY | EARLY UNIVERSE | LATE-DECAYING PARTICLES | ASTRONOMY & ASTROPHYSICS | BLUE COMPACT GALAXIES | HALO STARS | LIGHT-ELEMENTS | INFLATIONARY UNIVERSE | RELIC PARTICLES | PHYSICS, PARTICLES & FIELDS
Journal Article
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, ISSN 1475-7516, 10/2014, Issue 10
Dark matter decay or annihilation may produce monochromatic signals in the gamma-ray energy range. In this work we argue that there are strong theoretical... 
PARTICLE | LIGHT | BLACK-HOLE | DECAYS | DENSITY | gamma ray theory | MODELS | gamma ray experiments | ASTRONOMY & ASTROPHYSICS | dark matter experiments | REHEATING TEMPERATURE | CANDIDATES | PHYSICS | dark matter theory | PHYSICS, PARTICLES & FIELDS
Journal Article
Journal of Physics G: Nuclear and Particle Physics, ISSN 0954-3899, 01/2018, Volume 45, Issue 1
We develop the formal tools needed to construct helicity amplitudes for massive gravitinos in N = 1 supergravity. We start by considering the helicity states... 
helicity amplitudes | massive spinor helicity formalism | supergravity | gravitino phenomenology | LIGHT GRAVITINO | LOWER LIMIT | PARTICLES | UNITARITY | BROKEN SUPERGRAVITY | PHYSICS, NUCLEAR | TREE AMPLITUDES | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Phenomenology
Journal Article
Physics of the Dark Universe, ISSN 2212-6864, 03/2016, Volume 11, pp. 1 - 10
Recent positron flux fraction measurements in cosmic-rays (CR) made by the AMS-02 detector confirm and extend the evidence on the existence of a new (yet... 
Dark matter theory | Dark matter experiments | Gamma ray experiments | Cosmic ray experiments | SIGNAL | ANNIHILATION | LIGHT | MODELS | ASTRONOMY & ASTROPHYSICS | GALAXIES | SPECTRUM | EMISSION | ENERGIES | COSMIC-RAYS
Journal Article