Physical sciences topic list of research papers
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Atomic parity violation in the economical 3–3–1 model
Abstract The deviation δ Q W of the weak charge from its standard model prediction due to the...
2006 / P.V. Dong, H.N. Long, D.T. Nhung -
Higgs boson pair production at a photon–photon collision in the two Higgs doublet model
Abstract We calculate the cross section of Higgs boson pair production at a photon collider in the two Higgs doublet model. We focus on the scenario in which the lightest CP even Higgs boson (h) has the Standard Model like couplings to the gauge...
2009 / Eri Asakawa, Daisuke Harada, Shinya Kanemura, Yasuhiro Okada, Koji Tsumura -
A mini-landscape of exact MSSM spectra in heterotic orbifolds
Abstract We explore a “fertile patch” of the heterotic landscape based on a Z 6 -II orbifold with...
2006 / Oleg Lebedev, Hans Peter Nilles, Stuart Raby, Saúl Ramos-Sánchez, Michael Ratz, et al. -
Cosmology with a variable generalized Chaplygin gas
Abstract We investigate observational constraint on the variable generalized Chaplygin gas (VGCG) model as the unification of dark matter and dark energy by using the Union supernovae sample and the baryon acoustic oscillations data. Based on the...
2009 / Jianbo Lu -
Tachyonic squarks in split supersymmetry
Abstract The decoupling of scalar particles in split supersymmetry makes the spectrum of squarks irrelevant for low energy processes. Nevertheless, the structure of the vacuum is sensitive to the spectrum of squarks, even when the supersymmetry...
2005 / Alejandro Ibarra -
Stability of texture zeros under radiative corrections in see-saw models
Abstract It has been shown that only certain neutrino mass matrices with texture zeros are compatible with existing data. We discuss the stability of phenomenological consequences of texture zeros under radiative corrections in the type-I see-saw...
2004 / Claudia Hagedorn, Jörn Kersten, Manfred Lindner -
Signals of very high energy neutralinos in future cosmic ray detectors
Abstract “Top–down” models explain the observation of ultra-high energy cosmic rays (UHECR; E ≳ 5 × ...
2007 / Sascha Bornhauser, Manuel Drees -
CMB anisotropies and inflation from non-standard spinors
Abstract The apparent alignment of the cosmic microwave background multipoles on large scales challenges the standard cosmological model. Scalar field inflation is isotropic and cannot account for the observed alignment. We explore the imprints, a...
2008 / Christian G. Böhmer, David F. Mota -
Non-gaussianity from the trispectrum and vector field perturbations
Abstract We use the δN formalism to study the trispectrum T ζ of the primordial curvature perturbation ζ when the latter...
2010 / César A. Valenzuela-Toledo, Yeinzon Rodríguez -
Origin of the low-mass electron pair excess in light nucleus–nucleus collisions
Abstract We report measurements of electron pair production in elementary p + p and d + ...
2010 / G. Agakichiev, A. Balanda, D. Belver, A.V. Belyaev, A. Blanco, et al. -
Relating the proton, neutron and deuteron structure functions in the covariant Bethe–Salpeter formalism
Abstract The neutron structure function F 2 n(x) is evaluated within the kinematic range 10−3<x<1 from the deuteron and proton data by employing relativistic theoretical description of F ...
2004 / V.V. Burov, A.V. Molochkov, G.I. Smirnov, H. Toki -
The interference between virtual photon and 1−− charmonium in e+e− experiment
Abstract e + e − experiments producing charmonium are reviewed. It is found that the contribution of the continuum amplitude via virtual photon was neglected in...
2004 / P Wang, C.Z Yuan, X.H Mo, D.H Zhang -
Trajectory of neutron–neutron–18C excited three-body state
Abstract The trajectory of the first excited Efimov state is investigated by using a renormalized zero-range three-body model for a system with two bound and one virtual two-body subsystems. The approach is applied to n–n–18C, where the ...
2008 / M.T. Yamashita, T. Frederico, Lauro Tomio -
Unification and fermion mass structure
Abstract Grand Unified Theories predict relationships between the GUT-scale quark and lepton masses. Using new data in the context of the MSSM, we update the values and uncertainties of the masses and mixing angles for the three generations at the...
2008 / Graham G. Ross, Mario Serna -
Resolving the black-hole information paradox by treating time on an equal footing with space
Abstract Pure states in quantum field theory can be represented by many-fingered block-time wave functions, which treat time on an equal footing with space and make the notions of “time evolution” and “state at a given time” fundamentally...
2009 / Hrvoje Nikolić -
Model of mass varying neutrinos in SUSY
Abstract We discuss the mass varying neutrino scenario in the supersymmetric theory. In the case of the model with the single superfield, one needs the soft SUSY breaking terms or the μ term. However, fine-tunings of some parameters are required to...
2005 / Ryo Takahashi, Morimitsu Tanimoto -
Excitation of the dynamical dipole in the charge asymmetric reaction 16O+116Sn
Abstract The γ-ray emission from the dynamical dipole formed in heavy-ion collisions during the process leading to fusion was measured for the N/Z asymmetric reaction 16O+ 116Sn at beam energies of 8.1 and 15.6 MeV/nucleon....
2009 / A. Corsi, O. Wieland, V.L. Kravchuk, A. Bracco, F. Camera, et al. -
d-Dimensional oscillating scalar field lumps and the dimensionality of space
Abstract Extremely long-lived, time-dependent, spatially-bound scalar field configurations are shown to exist in d spatial dimensions for a wide class of polynomial interactions parameterized as V ( ...
2004 / Marcelo Gleiser -
Flavors and phases in unparticle physics
Abstract Inspired by the recent Georgi's unparticle proposal, we study the flavor structures of the Standard Model (SM) particles when they couple to unparticles. At a very high energy scale, we introduce BZ ...
2008 / Chuan-Hung Chen, Chao-Qiang Geng -
Can large scintillators be used for solar-axion searches to test the cosmological axion–photon oscillation proposal?
Abstract Solar-axion interaction rates in NaI, CsI and Xe scintillators via the axio-electric effect were calculated. A table is presented with photo-electric and axio-electric cross sections, solar-axion fluxes, and the interaction rates from 2.0...
2009 / F.T. Avignone, R.J. Creswick, S. Nussinov