Physical sciences topic list of research papers
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O(3) flavor symmetry and an empirical neutrino mass matrix
Abstract Based on a new approach to quark and lepton masses, where the mass spectra originate in vacuum expectation values of O(3)-flavor 1 + 5 (gauge...
2008 / Yoshio Koide -
Non-perturbative Kähler potential, dilaton stabilization and Fayet–Iliopoulos term
Abstract We study the dilaton stabilization in models with anomalous U(1) symmetry by adding specific string-motivated, non-perturbative corrections to the tree-level dilaton Kähler potential. We find that the non-perturbative effects can stabilize...
2004 / Tetsutaro Higaki, Yoshiharu Kawamura, Tatsuo Kobayashi, Hiroaki Nakano -
Prospects for pentaquark production at meson factories
Abstract Following Rosner [hep-ph/0312269], we consider B-decay production channels for the exotic I=0 and I=3/2 pentaquarks that have been recently reported. We also discuss new search channels for isovector pentaquarks, such as the Θ∗++( ...
2004 / Thomas E Browder, Igor R Klebanov, Daniel R Marlow -
Complex CKM from spontaneous CP violation without flavor changing neutral current
Abstract We analyse the general constraints on unified gauge models with spontaneous CP breaking that satisfy the conditions that (i) CP violation in the quark sector is described by a realistic complex CKM matrix, and (ii) there is no significant...
2006 / G.C. Branco, R.N. Mohapatra -
Topological effects in QCD and the problem of short-distance singularities
Abstract The topological susceptibility and the higher moments of the topological charge distribution in QCD are expressed through certain n-point functions of the scalar and pseudo-scalar quark densities at vanishing momenta, which are free of...
2004 / Martin Lüscher -
Chiral symmetry and exclusive B decays in the SCET
Abstract We construct a chiral formalism for processes involving both energetic hadrons and soft Goldstone bosons, which extends the application of soft-collinear effective theory to multibody B decays. The nonfactorizable helicity amplitudes for...
2005 / Benjamín Grinstein, Dan Pirjol -
Operator approach to isospin violation in pion photoproduction
Abstract Unambiguous isospin violation in the strong interaction sector is a key issue in low energy hadronic physics, both experimentally and theoretically. Bernstein has employed the Fermi–Watson theorem to demonstrate that pion photoproduction is ...
2006 / B. Ananthanarayan -
Model-independent extraction of two-photon effects in elastic electron–proton scattering
Abstract We address the discrepancy between the Rosenbluth and polarization transfer data for the electromagnetic form factors of the nucleon. Assuming that the effect of two-photon corrections on the polarization transfer data is negligible, we...
2007 / M.A. Belushkin, H.-W. Hammer, Ulf-G. Meißner -
The Friedberg–Lee symmetry and minimal seesaw model
Abstract The Friedberg–Lee (FL) symmetry is generated by a transformation of a fermionic field q to q + ξ z . This symmetry puts...
2009 / Xiao-Gang He, Wei Liao -
Exotic quark production in ep collisions
Abstract We investigate the single production and decay of charge − 1 / 3 , weak isosinglet vectorlike exotic D quarks in string...
2006 / A.T. Alan, A. Senol, N. Karagoz -
Semi-holographic universe
Abstract By assuming that a dark component (dark energy) in the universe strictly obeys the holographic principle, that is, its entropy is one fourth of the apparent horizon, we find that the existence of the other dark component (dark matter) is...
2010 / Hongsheng Zhang, Xin-Zhou Li, Hyerim Noh -
Prospects of mass measurements for neutral MSSM Higgs bosons in the intense-coupling regime at a linear collider
Abstract We analyze the prospects for detecting the three neutral Higgs bosons of the Minimal Supersymmetric extension of the Standard Model in the intense-coupling regime at e ...
2005 / E. Boos, V. Bunichev, A. Djouadi, H.J. Schreiber -
The role of triaxiality for the coexistence and evolution of shapes in light krypton isotopes
Abstract The structure of low-lying states in the light krypton isotopes 72Kr, 74Kr, and 76Kr has been studied with the finite-range Gogny D1S effective interaction via Hartree–Fock–Bogolyubov based calculations within a configuration-mixing...
2009 / M. Girod, J.-P. Delaroche, A. Görgen, A. Obertelli -
New solutions for the color–flavor locked strangelets
Abstract Recent publications rule out the negatively charged beta equilibrium strangelets in ordinary phase, and the color–flavor locked (CFL) strangelets are reported to be also positively charged. This Letter presents new solutions to the system...
2005 / G.X. Peng, X.J. Wen, Y.D. Chen -
Diced and grounded broadband bow-tie antenna with tuning stub for resonant tunnelling diode terahertz oscillators2016 / Khalid Hamed Alharbi, Ata Khalid, Afesomeh Ofiare, Jue Wang, Edward Wasige
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The Boundary Effect on the Energy Gap of High T c Superconductors2017 / A. N. Lykov
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Fission fragment distributions within dynamical approach2017 / K. Mazurek, P. N. Nadtochy, E. G. Ryabov, G. D. Adeev
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Energy balance and deformation at scission in 240 Pu fission
Abstract The experimental determination of the total excitation energy, the total kinetic energy, and the evaporation neutron multiplicity of fully identified fragments produced in transfer-induced fission of 240Pu, combined with reasonable...
2017 / Manuel Caamaño, Fanny Farget -
Logarithmic corrections and universal amplitude ratios in the 4-state Potts model
Abstract Monte Carlo and series expansion data for the energy, specific heat, magnetisation and susceptibility of the 4-state Potts model in the vicinity of the critical point are analysed. The role of logarithmic corrections is discussed. Estimates ...
2010 / Bertrand Berche, Paolo Butera, Lev N. Shchur -
Design of a high brightness multi-electron-beam source2008 / Yanxia Zhang, P. Kruit