Physical sciences topic list of research papers
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Resummed Quantum Gravity Prediction for the Cosmological Constant and Constraints on SUSY GUTS
Abstract We use our resummed quantum gravity approach to Einstein's general theory of relativity in the context of the Planck scale cosmology formulation of Bonanno and Reuter to estimate the value of the cosmological constant as ...
2016 / B.F.L. Ward -
The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
Abstract In this paper, vacuum expectation value (VEV) of the energy–momentum tensor for a conformally coupled scalar field in de Sitter space–time is investigated through the Krein–Gupta–Bleuler construction. This construction has already been...
2015 / S. Rahbardehghan, H. Pejhan -
Pressure-induced Novel Electronic State of Fe70Ni30 Invar Alloy
Abstract The electrical resistance and magnetoresistance of Fe70Ni30 Invar alloy have been measured at high pressure up to 15GPa. It is found that the coefficients of T 2 term in the electrical resistance increases with...
2015 / Gendo Oomi, Ryohei Saito, Masashi Ohashi, Tomohito Nakano -
Φ-meson nuclear modification factors at the lead nuclei collisions in the ALICE experiment at the LHC
Abstract Hadron spectra measurements in proton–proton and nucleus–nucleus collisions at the LHC provide the means to study the mechanisms of particle production and properties of the medium formed in relativistic heavy ion collisions. The φ-meson is ...
2015 / Mikhail V. Malaev, Victor G. Riabov, Yuri G. Riabov, Yaroslav A. Berdnikov, Vladimir M. Samsonov -
Collapsing objects with the same gravitational trajectory can radiate away different amount of energy
Abstract We study radiation emitted during the gravitational collapse from two different types of shells. We assume that one shell is made of dark matter and is completely transparent to the test scalar (for simplicity) field which belongs to the...
2016 / De-Chang Dai, Dejan Stojkovic -
Review of supershort avalanche electron beam during nanosecond-pulse discharges in some gases
Abstract Supershort avalanche electron beam (SAEB) plays an important role in nanosecond-pulse discharges. This paper aims at reviewing experiments results on characteritics of SAEB and its spectra in different gases in nanosecond-pulse discharges....
2016 / Victor F. Tarasenko, Cheng Zhang, Evgenii Kh. Baksht, Alexander G. Burachenko, Tao Shao, et al. -
Zen and the art of dichroic photoemission
Abstract The discovery of magnetic dichroism in photoemission is celebrating its 25th anniversary this year. Here a review of the underlying general theory for the angular and spin dependence of dichroic core-level photoemission is presented using...
2015 / Gerrit van der Laan -
Thermodynamics of the classical spin-ice model with nearest neighbour interactions using the Wang-Landau algorithm2016 / Maria V. Ferreyra, Gaston Giordano, Rodolfo A. Borzi, Joseph J. Betouras, Santiago A. Grigera
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Problems with mapping the auroral oval and magnetospheric substorms2015 / E. E. Antonova, V. G. Vorobjev, I. P. Kirpichev, O. I. Yagodkina, M. V. Stepanova
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Moonshine2015 / John FR Duncan, Michael J Griffin, Ken Ono
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Temperature fields and heat transfer in free-packed fuel pin bundles cooled by heavy liquid metal
Abstract The paper considers heat transfer and temperature fields in a free-packed fuel pin bundle cooled by a heavy liquid metal with different types of spacing. Data is analyzed for three fuel assemblies with a pitch of s/d = 1.33: a smooth fuel...
2016 / A.V. Zhukov, Yu.A. Kuzina, A.P. Sorokin, V.V. Privezentsev -
First observation of long-lived π+π− atoms
Abstract After observing and investigating the double-exotic (a double-exotic atom is a bound system, in which both oppositely charged components are unstable particles like μ , ...
2015 / -
Topologically stratified energy minimizers in a product Abelian field theory
Abstract We study a recently developed product Abelian gauge field theory by Tong and Wong hosting magnetic impurities. We first obtain a necessary and sufficient condition for the existence of a unique solution realizing such impurities in the form ...
2015 / Xiaosen Han, Yisong Yang -
On the effect of time-dependent inhomogeneous magnetic fields in electron–positron pair production
Abstract Electron–positron pair production in space- and time-dependent electromagnetic fields is investigated. Especially, the influence of a time-dependent, inhomogeneous magnetic field on the particle momenta and the total particle yield is...
2016 / Christian Kohlfürst, Reinhard Alkofer -
Improved measurement of the neutron absorption cross section for very low velocities
Abstract The absorption cross section of natural Gd and isotopic enriched 157Gd for ultra-cold neutrons (UCN) as a function of the velocity has been measured within a time-of-flight-experiment. Particular attention is paid to small velocities in the ...
2015 / J. Schroffenegger, P. Fierlinger, A. Hollering, P. Geltenbort, T. Lauer, et al. -
Binder Cumulants and Finite-size Scaling for the Adsorption Transition of Flexible Polymers under Different Solvent Conditions
Abstract By using contact-density chain growth simulations we study the scaling behavior of the adsorption transition of lattice homopoly- mers with up to 503 monomers. The reciprocal solubility parameter s, which controls the quality of the solvent ...
2015 / Paulo H.L. Martins, Michael Bachmann -
Quantum flux associated with a photon on the basis of the Heisenberg uncertainty relation
Abstract By using the Heisenberg uncertainty relation for a photon in a uniform magnetic field, we have shown that the quantum flux is associated with a photon ± ...
2016 / Ziya Saglam, Bahadir Boyacioglu, S. Burcin Bayram, Ashok Chatterjee -
Probing the R-parity violating supersymmetric effects in the exclusive c→d/sℓ+νℓ decays
Abstract A lot of branching ratios of the exclusive c → d / s ...
2015 / Ru-Min Wang, Jie Zhu, Jin-Huan Sheng, Mo-Lin Liu, Yuan-Guo Xu -
Study of Neutron Induced Reactions on 7Be Using Large Angle Coincidence Spectroscopy
Abstract Neutron induced reactions on the radioactive nuclei 7Be represent a unique tool for study of the 8Be nuclear structure in the high-energy region. The interactions of thermal neutrons with 7Be is dominated by the strong 7Be(nth,p)7Li...
2015 / Jiri Vacik, Vladimir Hnatowicz, Ulli Köster -
Physical Performance of GAMMA-400 Telescope. Angular Resolution, Proton and Electron Separation
Abstract The specially designed GAMMA-400 gamma-ray telescope will realize the measurements of gamma-ray fluxes and cosmic-ray electrons and positrons in the energy range from 100 MeV to several TeV. Such measurements concern with the following...
2015 / A.A. Leonov, А.М. Galper, I.V. Arkhangelskaja, A.I. Arkhangelskiy, Y.V. Gusakov, et al.