Physical sciences topic list of research papers
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High Power from Fixed-field Rings in the Accelerator-driven Sub-critical Reactor Application
Abstract The interest of high-power, fixed-field ring methods in accelerator-driven sub-critical reactor proton driver applications is discussed.
2015 / F. Meot, M. Haj Tahar, N. Tsoupas -
Thermodynamic properties of uranium dioxide: Electronic contributions to the specific heat
Abstract It has recently been proposed that the anomalous specific heat of uranium dioxide be ascribed to the effect of electronic defects rather than Frenkel disorder on the union sub-lattice. We here present calculations showing that the entropy...
2003 / J.H. Harding, P. Masri, A.M. Stoneham -
Consistent factorization of jet observables in exclusive multijet cross sections
Abstract We demonstrate the consistency at the next-to-leading-logarithmic (NLL) level of a factorization theorem based on Soft-Collinear Effective Theory (SCET) for jet shapes in e ...
2010 / Stephen D. Ellis, Andrew Hornig, Christopher Lee, Christopher K. Vermilion, Jonathan R. Walsh -
Black holes, holography and moduli space metric
Abstract String theory can accommodate black holes with the black hole parameters related to string moduli. It is a well known but remarkable feature that the near horizon geometry of a large class of black holes arising from string theory contains...
2007 / Kumar S. Gupta, Siddhartha Sen -
Effective potentials for light moduli
Abstract We examine recent work on compactifications of string theory with fluxes, where effective potentials for light moduli have been derived after integrating out moduli that are assumed to be heavy at the classical level, and then adding...
2005 / S.P. de Alwis -
Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider
Abstract We explore an intriguing possibility to test the type-II seesaw mechanism of neutrino mass generation at the Large Hadron Collider (LHC). We show that the lepton-number-violating signatures of heavy Majorana neutrinos ...
2008 / Wei Chao, Zong-Guo Si, Zhi-zhong Xing, Shun Zhou -
Anisotropic harmonic oscillator, non-commutative Landau problem and exotic Newton–Hooke symmetry
Abstract We investigate the planar anisotropic harmonic oscillator with explicit rotational symmetry as a particle model with non-commutative coordinates. It includes the exotic Newton–Hooke particle and the non-commutative Landau problem as...
2008 / Pedro D. Alvarez, Joaquim Gomis, Kiyoshi Kamimura, Mikhail S. Plyushchay -
Quark spin properties at high x
Abstract A general three quark bound state satisfying the Pauli principle, and conserving angular momentum and isospin, is used to investigate the spin structure of nucleons at high x. It is shown if F 1n /F ...
2004 / Jerrold Franklin -
Symmetries in the hyperbolic Hilbert space
Abstract The Cl ( 3 , 0 ) Clifford algebra is represented with the commutative...
2005 / S. Ulrych -
DGLAP versus perturbative Pomeron in large momentum transfer hard diffractive processes at HERA and LHC
Abstract We evaluate within the LO DGLAP approximation the dependence on energy of the cross section of the photo(electro)production of vector meson V ( V = J ...
2010 / B. Blok, L. Frankfurt, M. Strikman -
Evidence for charmonium generation at the phase boundary in ultra-relativistic nuclear collisions
Abstract We investigate the transition from suppression to enhancement of J / ψ mesons produced in ultra-relativistic nuclear collisions in the framework...
2007 / A. Andronic, P. Braun-Munzinger, K. Redlich, J. Stachel -
Nuclear matrix elements of ββ decay from β-decay data
Abstract The evaluation of the nuclear matrix elements (NME) of the two-neutrino double beta ( 2 ν β β ) decay and neutrinoless...
2004 / Jouni Suhonen -
Small-x neutrino–hadron structure functions within the QCD color dipole picture
Abstract We present an exploratory QCD analysis of the neutrino structure functions in charged current DIS using the color dipole formalism. The dipole cross sections are taken from recent phenomenological/theoretical studies in deep inelastic...
2006 / M.B. Gay Ducati, M.M. Machado, M.V.T. Machado -
Semiclassical gravitational effects near a singular magnetic flux
Abstract We consider the backreaction of the vacuum polarization effect for a massive charged scalar field in the presence of a singular magnetic massless string on the background metric. Using semiclassical approach, we find the first-order (in ℏ...
2004 / Volodymyr M. Gorkavenko, Alexander V. Viznyuk -
Pentaquarks in the chiral symmetry limit
Abstract We demonstrate that a five-quark state of positive parity with an internal P-wave structure—usually pictured as a composite of an antiquark and two diquarks in a P-wave state—can couple to nucleons and Goldstone particles in a chirally...
2005 / Dmitri Melikhov, Berthold Stech -
Closed conformal Killing–Yano tensor and Kerr–NUT–de Sitter space–time uniqueness
Abstract We study space–times with a closed conformal Killing–Yano tensor. It is shown that the D-dimensional Kerr–NUT–de Sitter space–time constructed by Chen–Lü–Pope is the only space–time admitting a rank-2 closed conformal Killing–Yano tensor...
2007 / Tsuyoshi Houri, Takeshi Oota, Yukinori Yasui -
Cronin effect vs. geometrical shadowing in d+Au collisions at RHIC
Abstract Multiple initial state parton interactions in p(d)+Au collisions are calculated in a Glauber–Eikonal formalism. The convolution of perturbative QCD parton–nucleon cross sections predicts naturally the competing pattern of low-p ...
2004 / A Accardi, M Gyulassy -
Vortices, infrared effects and Lorentz invariance violation
Abstract The Yang–Mills theory with non-commutative fields is constructed following Hamiltonian and Lagrangian methods. This modification of the standard Yang–Mills theory produces spatially localized solutions very similar to those of the standard...
2005 / H. Falomir, J. Gamboa, J. López-Sarrión, F. Méndez, A.J. da Silva -
Neutrino effective charge in a dense Fermi plasma
Abstract By using a plasma physics approach, the neutrino effective charge in a dense Fermi plasma is determined here. Its value is determined by the collective quantum plasma processes. It is found that the contribution of the ion motion can be...
2007 / L.A. Rios, P.K. Shukla, A. Serbeto -
Electric quadrupole and magnetic octupole moments of the light decuplet baryons within light cone QCD sum rules
Abstract The electric quadrupole and magnetic octupole moments of the light decuplet baryons are calculated in the framework of the light cone QCD sum rules. The obtained non-vanishing values for the electric quadrupole and magnetic octupole moments ...
2009 / T.M. Aliev, K. Azizi, M. Savcı