Physical sciences topic list of research papers
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GeV to TeV astrophysical tau neutrinos
Abstract Neutrinos with energy greater than GeV are copiously produced in the p ( A , p ) ...
2004 / H. Athar, C.S. Kim -
Dark energy interacting with two fluids
Abstract A cosmological model of dark energy interacting with dark matter and another general component of the universe is investigated. We found general constraints on these models imposing an accelerated expansion. The same is also studied in the...
2008 / Norman Cruz, Samuel Lepe, Francisco Peña -
New bounds on millicharged particles from cosmology
Abstract Particles with millicharge q and sub-eV mass can be produced in photon–photon collisions, distorting the energy spectrum of the Cosmic Microwave Background. We derive the conservative bound q ...
2007 / A. Melchiorri, A.D. Polosa, A. Strumia -
Rolling tachyon with electromagnetic field in linear dilaton background
Abstract Rolling tachyon in linear dilaton background is examined by using an effective field theory with gauge field on an unstable D-brane in bosonic string theory. Several solutions are identified with tachyon matter equipped with constant...
2004 / Kenji Nagami -
Semi-classical and anharmonic quantum models of nuclear wobbling motion
Abstract A semi-classical model for wobbling motion is presented as an extension to the Bohr–Mottelson model of wobbling motion. Using the resultant wobbling potential, a quantum mechanical equation is derived for anharmonic wobbling motion. We then ...
2006 / Makito Oi -
A model of neutrino and Higgs physics at the electroweak scale
Abstract We present and explore the Higgs physics of a model that in addition to the Standard Model fields includes a lepton number violating singlet scalar field. Based on the fact that the only experimental data we have so far for physics beyond...
2008 / Alfredo Aranda, Omar Blanno, J. Lorenzo Díaz-Cruz -
Probing Majorana neutrino CP phases and masses in neutrino–antineutrino conversion
Abstract We propose a new strategy for detecting the CP-violating phases and the effective mass of muon Majorana neutrinos by measuring observables associated with neutrino–antineutrino oscillations in ...
2010 / David Delepine, Vannia González Macías, Shaaban Khalil, Gabriel López Castro -
Dark matter signals and cosmic ray anomalies in an extended seesaw model
Abstract An extended seesaw model proposed to achieve low scale leptogenesis can resolve the excess positron and electron fluxes observed from PAMELA, ATIC and/or Fermi-LAT, and simultaneously accommodate some of recent experimental results for dark ...
2010 / H. Sung Cheon, Sin Kyu Kang, C.S. Kim -
Probing of incomplete fusion dynamics by spin-distribution measurement
Abstract Aiming to probe incomplete fusion dynamics in 16O + 169Tm system, spin-distributions of various reaction products populated via xn-, α / 2 α ...
2008 / Pushpendra P. Singh, B.P. Singh, M.K. Sharma, Unnati Gupta, Rakesh Kumar, et al. -
A six-dimensional view on twistors
Abstract We study the twistor formulation of the classical N = 4 super-Yang–Mills theory on the quadric submanifold of ...
2004 / Annamaria Sinkovics, Erik Verlinde -
Single field inflationary models with non-compact Kaluza–Klein theory
Abstract We discuss a semiclassical treatment to inflationary models from Kaluza–Klein theory without the cylinder condition. We conclude that the evolution of the early universe could be described by a geodesic trajectory of a cosmological 5D...
2003 / Diego S Ledesma, Mauricio Bellini -
Mass gap without vacuum energy
Abstract We consider soft nonlocal deformations of massless theories that introduce a mass gap. By use of a renormalization scheme that preserves the ultraviolet softness of the deformation, renormalized quantities of low mass dimension, such as...
2009 / B. Holdom -
A note on the dimensional regularization of the Standard Model coupled with quantum gravity
Abstract In flat space, γ 5 and the epsilon tensor break the dimensionally continued Lorentz symmetry, but propagators...
2004 / Damiano Anselmi -
High energy description of dark energy in an approximate 3-brane Brans–Dicke cosmology
Abstract We consider a Brans–Dicke cosmology in five-dimensional space–time. Neglecting the quadratic and the mixed Brans–Dicke terms in the Einstein equation, we derive a modified wave equation of the Brans–Dicke field. We show that, at high energy ...
2006 / A. Errahmani, T. Ouali -
Exclusion of black hole disaster scenarios at the LHC
Abstract The upcoming high energy experiments at the LHC are one of the most outstanding efforts for a better understanding of nature. It is associated with great hopes in the physics community. But there is also some fear in the public, that the...
2009 / Benjamin Koch, Marcus Bleicher, Horst Stöcker -
Fixed boundary conditions analysis of the 3d gonihedric Ising model with κ=0
Abstract The gonihedric Ising model is a particular case of the class of models defined by Savvidy and Wegner intended as discrete versions of string theories on cubic lattices. In this Letter we perform a high statistics analysis of the phase...
2004 / M. Baig, J. Clua, D.A. Johnston, R. Villanova -
Cross sections and fragment distributions from neutrino-induced fission on r-process nuclei
Abstract We study neutrino-induced processes that might contribute to the observed patterns in the r-process abundances in low-metallicity, old galactical halo stars. The neutrino–nucleus interaction is calculated within the random phase...
2005 / A. Kelić, N. Zinner, E. Kolbe, K. Langanke, K.-H. Schmidt -
Minimal flavor violation in the lepton sector of the Randall–Sundrum model
Abstract We propose a realization of Minimal Flavor Violation in the lepton sector of the Randall–Sundrum model. With the MFV assumption, the only source of flavor violation are the 5D Yukawa couplings, and the usual two independent sources of...
2009 / Mu-Chun Chen, Hai-Bo Yu -
A lattice computation of the first moment of the kaon's distribution amplitude
Abstract We present a lattice computation of the first moment of the kaon's leading-twist distribution amplitude. The results were computed using ensembles with 2 + 1 ...
2006 / P.A. Boyle, M.A. Donnellan, J.M. Flynn, A. Jüttner, J. Noaki, et al. -
Quantum spring from the Casimir effect
Abstract The Casimir effect arises not only in the presence of material boundaries but also in space with nontrivial topology. In this Letter, we choose a topology of the flat ( D ...
2010 / Chao-Jun Feng, Xin-Zhou Li