Physical sciences topic list of research papers
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Electric/magnetic field deformed giant gravitons in Melvin geometry
Abstract The rotating D3-brane in the AdS 5 × S ...
2006 / Wung-Hong Huang -
The little Randall–Sundrum model at the large hadron collider
Abstract We present a predictive warped model of flavor that is cut off at an ultraviolet scale O ( 10 3 ...
2008 / Hooman Davoudiasl, Gilad Perez, Amarjit Soni -
Probing lepton number violating interactions with beta-beams
Abstract We show that a detector placed near a beta-beam storage ring can probe lepton number violating interactions, as predicted by supersymmetric theories with R-parity non-conservation. In the presence of such interactions, ...
2007 / Sanjib Kumar Agarwalla, Subhendu Rakshit, Amitava Raychaudhuri -
Hypermagnetic baryogenesis
Abstract We study a new scenario for baryogenesis due to the spontaneous breaking of the CPT invariance through the interaction between a baryon current and a hypermagnetic helicity. The hypermagnetic helicity (Chern–Simons number) of ...
2008 / Kazuharu Bamba, C.Q. Geng, S.H. Ho -
The electromagnetic dark sector
Abstract We consider electromagnetic field quantization in an expanding universe. We find that the covariant (Gupta–Bleuler) method exhibits certain difficulties when trying to impose the quantum Lorenz condition on cosmological scales. We thus...
2010 / Jose Beltrán Jiménez, Antonio L. Maroto -
Probing the curvature of the Universe from supernova measurement
Abstract We study the possibility to probe the spatial geometry of the Universe by supernova measurement. We illustrate with an accelerating universe model with infinite-volume extra dimensions, for which the 1σ level supernova results indicate that ...
2004 / Bin Wang, Yungui Gong, Ru-Keng Su -
On cosmological implications of gravitational trace anomaly
Abstract We study the infrared effective theory of gravity that stems from the quantum trace anomaly. Quantum fluctuations of the metric induce running of the cosmological constant and the Newton constant at cosmological scales. By imposing the...
2007 / Neven Bilić, Branko Guberina, Raul Horvat, Hrvoje Nikolić, Hrvoje Štefančić -
The accelerating universe in brane-world cosmology
Abstract The standard Friedmann universe embedded in a five-dimensional bulk with constant curvature is examined as a brane-world with the extrinsic curvature derived directly from Codazzi's equation. It is shown that the accelerated expansion of...
2004 / M.D. Maia, Edmundo M. Monte, J.M.F. Maia -
HERWIRI1.0: MC realization of IR-improved DGLAP–CS parton showers
Abstract We present Monte Carlo data showing the comparison between the parton shower generated by the standard Dokshitzer–Gribov–Lipatov–Altarelli–Parisi–Callan–Symanzik (DGLAP–CS) kernels and that generated with the new IR-improved DGLAP–CS...
2010 / S. Joseph, S. Majhi, B.F.L. Ward, S.A. Yost -
Kinematic cusps: Determining the missing particle mass at colliders
Abstract In many extensions of the SM, neutral massive stable particles (dark matter candidates) are produced at colliders in pairs due to an exact symmetry called a “parity”. These particles escape detection, rendering their mass measurement...
2010 / Tao Han, Ian-Woo Kim, Jeonghyeon Song -
Status of oscillation plus decay of atmospheric and long-baseline neutrinos
Abstract We study the interplay of neutrino oscillation and invisible decay in atmospheric and long-baseline neutrinos experiments. We perform a global analysis of the full atmospheric data from Super-Kamiokande together with long-baseline K2K and...
2008 / M.C. Gonzalez-Garcia, Michele Maltoni -
Strong and electromagnetic mass splittings in heavy mesons
Abstract The contributions to heavy meson mass differences by the strong hyperfine interaction, the light quark masses and the electromagnetic interaction are obtained from the empirical values of the D, ...
2007 / J.L. Goity, C.P. Jayalath -
Chiral-odd fragmentation functions in single pion inclusive electroproduction
Abstract We consider a sub-leading twist chiral-odd pion fragmentation function and explore its contribution in single pion semi-inclusive electroproduction. We evaluate the single beam-spin azimuthal asymmetry A ...
2004 / Leonard P. Gamberg, Dae Sung Hwang, Karo A. Oganessyan -
Impact on the light Higgsino-LSP scenario from physics beyond the minimal supersymmetric standard model
Abstract The modest addition of the dimension-5 term λ ( ...
2009 / Kingman Cheung, Seong Youl Choi, Jeonghyeon Song -
Statefinder diagnostic for coupled quintessence
Abstract The problem of the cosmic coincidence is a longstanding puzzle. This conundrum may be solved by introducing a coupling between the two dark sectors. In this Letter, we study two cases of the coupled quintessence scenario. (a) Assume that...
2005 / Xin Zhang -
Diquarks and antiquarks in exotics: A ménage à trois and a ménage à quatre
Abstract A ménage à trois is very different from an ordinary family. Similarly, exotic hadrons with both qq and q q ¯ ...
2006 / Marek Karliner, Harry J. Lipkin -
Limiting fragmentation from scale-invariant merging of fast partons
Abstract Exploiting the idea that the fast partons of an energetic projectile can be treated as sources of colour radiation interpreted as wee partons, it is shown that the recently observed property of extended limiting fragmentation implies a...
2008 / A. Bialas, A. Bzdak, R. Peschanski -
Exact linear invariants and quantum effects in the early universe
Abstract In this contribution we use linear invariants and the dynamical invariant method in the framework of the linear Schrödinger equation to study scalar fields in a Friedman–Robertson–Walker spacetime, obtaining exact wave functions to this...
2007 / I.A. Pedrosa, Claudio Furtado, Alexandre Rosas -
Interference and binding effects in decays of possible molecular component of X(3872)
Abstract It is pointed out that the internal structure of the narrow resonance X(3872) at the D0 D ̄ ∗0 ...
2003 / M.B. Voloshin -
Higher-derivative Lee–Wick unification
Abstract We consider gauge coupling unification in Lee–Wick extensions of the Standard Model that include higher-derivative quadratic terms beyond the minimally required set. We determine how the beta functions are modified when some Standard Model...
2009 / Christopher D. Carone