Results 41 to 50 of about 1,304,136 (197)

Distribution and growth rate of COVID-19 outbreak in Tamil Nadu: A log-linear regression approach

Indian Journal of Public Health, 2020
Background: Most of the countries are affected with the pandemic outbreak of the coronavirus infection. Understanding the severity and distribution in various regions will help in planning the controlling measures. Objectives: The objective was to assess
Adhin Bhaskar, Chinnaiyan Ponnuraja, Ramalingam Srinivasan, Srinivasan Padmanaban   +3 more
doaj   +1 more source

Particle decay in false vacuum

, 2005
We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the `master field' the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a ...
A. Gorsky, G. Munster, I. Y. Kobzarev, I. Y. Kobzarev, K. G. Selivanov, M. B. Voloshin, M. Shifman, M. B. Voloshin, M. B. Voloshin, M. B. Voloshin, M. B. Voloshin, R. P. Feynman, V. Kiselev, V. Kiselev, V. G. Kiselev, V. G. Kiselev   +15 more
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Decay Rates of The Solution to the Cauchy Problem of the Type III Timoshenko Model Without Any Mechanical Damping

Demonstratio Mathematica, 2015
In this paper, we study the asymptotic behavior of the solutions of the one-dimensional Cauchy problem in Timoshenko system with thermal effect. The heat conduction is given by the type III theory of Green and Naghdi.
Said-Houari Belkacem
doaj   +1 more source

Nuclear structure and double beta decay: Two neutrino mode [PDF]

, 1985
The decay rate of the 2ν double beta decay is calculated. The effects of pairing, static quadrupole deformation, spin-isospin polarization, and the Δ_(33) isobar admixtures on the nuclear matrix elements are studied and the relation of the 2ν ββ rate and
Fisher, P., Vogel, P.
core   +1 more source

Theoretical analysis of a water wave model with a nonlocal viscous dispersive term using the diffusive approach

Advances in Nonlinear Analysis, 2017
In this paper, we study the following water wave model with a nonlocal viscous term:
Goubet Olivier, Manoubi Imen
doaj   +1 more source

Quasiparticle decay in a one-dimensional Bose-Fermi mixture

, 2017
In a one-dimensional weakly interacting Bose-Fermi mixture one branch of elementary excitations is well described by the Bogoliubov spectrum. Here we use the microscopic theory to study the decay of such quasiparticle excitations.
Petkovic, Aleksandra, Reichert, Benjamin, Ristivojevic, Zoran   +2 more
core   +3 more sources

Three-Dimensional Black Holes and String Theory [PDF]

, 1997
The exact decay rate for emission of massless minimally coupled scalar fields by a non-extremal black hole in 2+1 dimensions is obtained. At low energy, the decay rate into scalars with zero angular momentum is correctly reproduced within conformal field
Bañados, Bañados, Callan, Carlip, Coussaert, Cvetič, Cvetič, Danny Birmingham, Das, Das, Gubser, Gubser, Horowitz, Horowitz, Horowitz, Ichinose, Ivo Sachs, Maldacena, Maldacena, Rabenstein, Siddhartha Sen, Steif, Strominger   +22 more
core   +3 more sources

Decay rate of the solutions to the Cauchy problem of the Lord Shulman thermoelastic Timoshenko model with distributed delay

Demonstratio Mathematica
In this study, we address a Cauchy problem within the context of the one-dimensional Timoshenko system, incorporating a distributed delay term. The heat conduction aspect is described by the Lord-Shulman theory.
Choucha Abdelbaki, Boulaaras Salah, Jan Rashid, Alnegga Mohammad   +3 more
doaj   +1 more source

Precise estimate of charged Wino decay rate

Journal of High Energy Physics, 2023
The Wino is an SU(2) L triplet Majorana fermion and a well-motivated dark matter candidate. The mass difference between the charged and the neutral Winos is small thanks to the SU(2) L symmetry. The small mass difference makes the charged Wino metastable,
Masahiro Ibe, Masataka Mishima, Yuhei Nakayama, Satoshi Shirai   +3 more
doaj   +1 more source

The convolution formula for a decay rate

, 2006
The convolution formula is derived within the framework of the decay-chain method for decay channels with three and four particles in a final state. To get this formula exactly for unstable particle of any type one must modify the propagators of vector ...
Altarelli, Bar-Shalom, Beneke, Bohm, Bohm, Bohm, Grassi, Grassi, Kamal, Kaur, Kniehl, Kniehl, Kniehl, Kuksa, Mahlon, Mahlon, Mahlon, Matthews, Matthews, Nekrasov, Stuart, Uppal, Uppal, V.I. Kuksa, Zanderighi   +24 more
core   +3 more sources