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Examining the cosmic acceleration with the latest Union2 supernova data
cosmic acceleration latest Union2 supernova data
2010/12/20
In this Letter, by reconstructing the Om diagnostic and the deceleration parameter q from
the latest Union2 Type Ia supernova sample with and without the systematic error along with
the baryon acous...
Cosmic Sum Rules
Cosmic Sum Rules
2010/12/21
The data recently collected by PAMELA [1] indicate that there is a positron excess in the cosmic ray (CR) en-ergy spectrum above 10 GeV which was already observedin 1974. Such a rising behavior does n...
Singular inverse square potential in arbitrary dimensions with a minimal length: Application to the motion of a dipole in a cosmic string background
Singular inverse square potential arbitrary dimensions minimal length: Application to the motion dipole cosmic string background
2010/10/18
We solve analytically the Schr¨odinger equation for the N-dimensional inverse square potential
in quantum mechanics with a minimal length in terms of Heun’s functions. We apply our results
to the pr...
Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
2010/12/20
Classical generalization of general relativity is considered as gravitational alternative for unified description of the early-time inflation with late-time cosmic acceleration. The structur and cosmo...
Multidimensional quantum cosmic models: New solutions and gravitational waves
quantum cosmic gravitational waves
2010/3/18
This paper contains a discussion on the quantum cosmic models, starting with the interpretation that all of the accelerating effects in the current universe are originated from the existence of a nonz...
Operation and calibration of the Silicon Drift Detectors of the ALICE experiment during the 2008 cosmic ray data taking period
Trackong detectors silicon detectors LHC
2010/3/15
The calibration and performance of the Silicon Drift Detector of the ALICE experiment during the 2008 cosmic ray run will be presented. In particular the procedures to monitor the running parameters (...
Cosmic recall and the scattering picture of Loop Quantum Cosmology
Cosmic recall scattering picture Loop Quantum Cosmology
2010/3/17
The global dynamics of a homogeneous universe in Loop Quantum Cosmology is viewed as a scattering process of its geometrodynamical equivalent. This picture is applied to build a flexible (easy to gene...
Alignment of the ALICE Inner Tracking System with cosmic-ray tracks
Particle tracking detectors (Solid-state detectors) Detector alignment and calibration methods
2010/3/15
ALICE (A Large Ion Collider Experiment) is the LHC (Large Hadron Collider) experiment devoted to investigating the strongly interacting matter created in nucleus-nucleus collisions at the LHC energies...
Design and implementation of the detector control system for the BESⅢ drift chamber cosmic ray test
Detector Control System drift chamber LabVIEW
2009/8/14
After the construction of the BESⅢ drift chamber, a long period of cosmic rays test is necessary to verify its performance. This also provides a good opportunity to integrate the detector readout ele...
Installation and cosmic ray test of the high voltage system of the BESⅢ drift chamber
BESⅢ drift chamber high voltage system cosmic ray test installation
2009/8/14
After examination of the designed high voltage power supply system of the BESⅢ drift chamber in the beam test of the full length prototype of drift chamber, a full system covering all the channels of ...
R2 Correction and Its Implication of
Present Cosmic Accelerating Behavior
cosmic acceleration curvature-squared dark energy
2007/8/15
2004Vol.41No.1pp.157-160DOI:
R2 Correction and Its Implication of
Present Cosmic Accelerating Behavior
LI Hui and XU Jian-Jun
Department of Physics, Fudan University, ...
Geometrical Generation of Cosmic Magnetic Fields within Standard Electromagnetism
Geometrical Generation Cosmic Magnetic Fields Standard Electromagnetism
2010/10/18
We study the evolution of cosmological magnetic fields in FRW models with curved spatial sections and outline a geometrical mechanism for their superadiabatic amplification on large scales. The mechan...
Features of Daily Variation in Cosmic Ray Intensity During High/Low Amplitude Events
cosmic ray diurnal semi-diurnal anisotropy high-speed solar wind streams and interplanetary magnetic field
2010/4/12
A detailed study has been conducted on the long-term changes in the diurnal, semi-diurnal and tri-diurnal anisotropy of cosmic rays in terms of the high/low amplitude anisotropic wave train events (HA...
East-West and Radial Anisotropy in Cosmic Ray Modulation
Cosmic rays diurnal semi-diurnal anisotropy and solar poloidal magnetic field
2010/4/12
The cosmic ray (CR) data observed with the Deep River neutron monitoring station has been harmonically analyzed for the period 1964--95 to obtain the diurnal and semi-diurnal components of cosmic ray ...
Influence of Solar Activity on Low Amplitude Cosmic Ray Diurnal Anisotropy
Cosmic ray sunspot solar activity solar cycle and diurnal anisotropy
2010/4/12
A detailed study has been conducted on the occurrence of a large number of low amplitude events (LAE) of cosmic ray (CR) diurnal anisotropy during 1981--1994 as a function of solar activity. The low a...