8,684 research outputs found
Analyzing flow anisotropies with excursion sets in relativistic heavy-ion collisions
We show that flow anisotropies in relativistic heavy-ion collisions can be
analyzed using a certain technique of shape analysis of excursion sets recently
proposed by us for CMBR fluctuations to investigate anisotropic expansion
history of the universe. The technique analyzes shapes (sizes) of patches above
(below) certain threshold value for transverse energy/particle number (the
excursion sets) as a function of the azimuthal angle and rapidity. Modeling
flow by imparting extra anisotropic momentum to the momentum distribution of
particles from HIJING, we compare the resulting distributions for excursion
sets at two different azimuthal angles. Angles with maximum difference in the
two distributions identify the event plane, and the magnitude of difference in
the two distributions relates to the magnitude of momentum anisotropy, i.e.
elliptic flow.Comment: 5 pages, 4 figure
On Neutrino Masses and Family Replication
The old issue of why there are more than one family of quarks and leptons is
reinvestigated with an eye towards the use of anomaly as a tool for
constraining the number of families. It is found that, by assuming the
existence of right-handed neutrinos (which would imply that neutrinos will have
a mass) and a new chiral SU(2) gauge theory, strong constraints on the number
of families can be obtained. In addition, a model, based on that extra SU(2),
is constructed where it is natural to have one "very heavy" fourth neutrino and
three almost degenerate light neutrinos whose masses are all of the Dirac type.Comment: RevTex, 12 pages with 1 figure, minor changes to the text and added
acknowledgment
Turbulent Structure In Compound Open Channel Flows With Vegetated Floodplains
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv
Influence of Fabric on Upgradation of Low-Grade Manganese Ores from Bonai-Keonjhar Belt, Orissa
Enrichment of manganese value through physical beneficia-tion techniques from two types of low-grade manganese ore viz. siliceous and aluminous types from Bonai-Keonjhar belt of Orissa have been undertaken. The influence of min-eral fabric on the upgradation potential was established
Predicting the Evolution of Suspended Sediment Concentration Using Artificial Neural Network
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv
Lepton Flavor Violation and the Tau Neutrino Mass
We point out that, in the left-right symmetric model of weak interaction, if
mass is in the keV to MeV range, there is a strong correlation
between rare decays such as and
the mass. In particular, we point out that a large range of
masses are forbidden by the cosmological constraints on
in combination with the present upper limits on these processes.Comment: UMDHEP 94-30, 14 pages, TeX file, (some new references added
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