2,211 research outputs found
The mass spectra and decay properties of dimesonic states, using the Hellmann potential
Mass spectra of the dimesonic (meson-antimeson) molecular states are computed
using the Hellmann potential in variational approach, which consists of
relativistic correction to kinetic energy term as well as to the potential
energy term. For the study of molecular bound state system, the Hellmann
potential of the form is
being used. The one pion exchange potential (OPEP) is also incorporated in the
mass calculation. The digamma decay width and decay width of the dimesonic
system are evaluated using the wave function. The experimental states such as
, , , , ,
,, , , ,
are compared with dimesonic states. Many of these states (masses
and their decay properties) are close to our theoretical predictions.Comment: 11 pages, 4 table
Identifying new physics contributions in the Higgs sector at linear e+e- colliders
Loop driven decay modes of the Higgs are sensitive to new physics
contributions because of new particles in the loops. To highlight this we look
at the dilepton-dijet signal in the dominant Higgs production channel at a
linear e+e- collider. We show that by taking a simple ratio between
cross-sections of two different final states such contributions can be very
easily identified.Comment: Latex 4 pages, 2 eps figures (style files included). Talk given at
the linear collider workshop LCWS06, Bangalore, March 200
Masses and decay modes of charmonia using a confinement model
The masses of charmonium s and p-states, pseudoscalar and vector decay
constants, leptonic, hadronic as well as radiative decay widths for charmonia
have been computed in the framework of extended harmonic confinement model
without any additional parameters. The outcome in comparison with other
contemporary theoretical and experimental results is presented.Comment: Submitted to AIP for proceedings of International Workshop on
Theoretical High Energy Physics held at IIT Roorkee, INDIA during 15-20
March, 200
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