The scalar does not decay at finite temperatures

We investigate medium effects on mesonic screening lengths for QCD with 2-flavours of dynamical staggered quarks on lattices with cutoff a=1/6T. Denoting the cross-over temperature by $T_c$, we vary the temperature T from 0.89$T_c$ to 1.92$T_c$, spanning both the hadronic and quark gluon plasma phases. While chiral symmetry restoration in the vector channel appears to take place near $T_c$, it is seen in the scalar channel only above 1.33 $T_c$. Varying spatial lattice sizes, we find very little volume dependence in our results at 0.94 $T_c$. We discuss the stability of the scalar meson at these temperatures.Comment: Talk presented at The XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Ital

Texture zeros of low-energy Majorana neutrino mass matrix in 3+1 scheme

In this work we revisit the zero textures in low energy Majorana neutrino mass matrix when the active neutrino sector is extended by a light sterile neutrino in the eV scale i.e., the 3+1 scheme. In 3+1 scenario, the low energy neutrino mass matrix ($m_\nu$) has ten independent elements. Thus in principle one can have minimum one-zero texture to maximum ten-zero texture. We summarize the previous results of one, two, three and four-zero textures which already exist in the literature and present our new results on five-zero textures. In our analysis we find that among six possible five-zero textures, only one is allowed by the present data. We discuss possible theoretical model which can explain the origin of the allowed five-zero texture and discuss other possible implications of such a scenario. Our results also concludes that in 3+1 scheme, one can not have more than five-zeros in $m_\nu$.Comment: 12 pages, 3 figures. Version published in PR

Solvent Effect on Charge-transfer Emission Spectra of Dimethylaniline as Donor & Anthracene, Benzopyrene, Chrysene & Phenanthrene as Acceptors

828-83

Two Weighted Fuzzy Goal Programming Methods to Solve Multiobjective Goal Programming Problem

We propose two new methods to find the solution of fuzzy goal programming (FGP) problem by weighting method. Here, the relative weights represent the relative importance of the objective functions. The proposed methods involve one additional goal constraint by introducing only underdeviation variables to the fuzzy operator λ (resp., 1-λ), which is more efficient than some well-known existing methods such as those proposed by Zimmermann, Hannan, Tiwari, and Mohamed. Mohamed proposed that every fuzzy linear program has an equivalent weighted linear goal program where the weights are restricted as the reciprocals of the admissible violation constants. But the above proposition of Mohamed is not always true. Furthermore, the proposed methods are easy to apply in real-life situations which give better solution in the sense that the objective values are sufficiently closer to their aspiration levels. Finally, for illustration, two real examples are used to demonstrate the correctness and usefulness of the proposed methods

Excimer Probe in the Study of Pyrene Solubilization by Fatty Acid (Capric, Lauric & Palmitic Acids) Soaps

549-55

Interlinkage between Constructs of Technology Acceptance Model (TAM)- A Study among E-Commerce Users in India

The study aims at testing Technology Acceptance Model (TAM) for e commerce in India based on four constructs of TAM i.e. perceived usefulness, perceived ease of use, behavioural intention to use and actual usage. For this purpose, 12 selected variables were chosen and the study is conducted with a sample size of 28 internet users using purposive sampling. All participants were internet users with varying internet experience of 1-3 years or more, residing in Delhi. A structured questionnaire was used for primary data collection. The analysis has been conducted using factor analysis and correlation analysis. The study concludes that each of these two constructs namely Perceived usefulness and Behavioural intention were related to actual use e commerce in India, while the other two constructs were not found to have significant relation with usage of e-commerce. Keywords: E-commerce, online shopping, TAM, factor analysis, correlation