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Singh, Dhirendra
- Spectra and Decay Properties of S-wave Bottomonium States
Authors
1 Department of Physics, D.B.S.(P.G.) College, Kanpur, U.P., IN
Source
International Journal of Physics and Applications, Vol 5, No 1 (2013), Pagination: 7-12Abstract
In this paper we calculated the masses of S-wave mesons, pseudoscalar and vector decay constants of bottomonium based on the relativistic harmonic confinement model for quarks and antiquarks. The quark potential model used for investigation contains the scalar plus vector harmonic potential interaction, the residual two-body coulomb interaction and the spin dependent interaction. The spin-spin interactions are perturbatively incorporated with the confinement energy to get the respective meson masses. Here, we have also calculated the decay properties of ground state bottomonium. The results are being compared with values obtained from other theoretical models and experimental values.Keywords
Semi-relativistic Harmonic Model, Confined One Gluon Exchange Potential, Decay Constants, S-wave Spectrum
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- Evaluation of Chilli (Capsicum annuum L.) Genotypes and their Interaction with Foliar Application of NAA during Spring Summer Season under Foot Hills of Himalayas in Uttarakhand
Authors
1 Department of Vegetable Science, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN
2 Department of Horticulture, Gochar Mahavidyalaya, Rampur Maniharan, Saharanpur (U.P.), IN
Source
The Asian Journal of Horticulture, Vol 10, No 2 (2015), Pagination: 292-297Abstract
An experiment involving twenty four genotypes of chilli and three created environments (E0 – No spray, E1 – Single spray on NAA @ 40 ppm and E2 – Double spray of NAA @ 40 ppm) was carried out during spring summer season at Vegetable Research Centre, Pantnagar to determine the best genotype, suitable environment and their interactions for higher production of chilli. Out of the three environments, E2 was found better for red ripen fruit yield, number of fruits/plant, 100-seed weight, seed : husk ratio, minimum incidence of disease viz., anthracnose and leaf curl virus, whereas, significant variations were observed for all the 18 characters studied. Among genotypes viz., G23 (PC-2062), G24 (PC-2064) and G22 (PC-2057) produced significantly more number of fruits/plant and G20 (PC-7) followed by G21 (PC-56) and G2 (Co-4) performed better for weight of fruits/plant. Genotypes G23 and G21 produced 110.26 and 71.60 per cent higher yield over check variety Pant C-1, respectively. Longest fruits (13.59 cm) were obtained in G20 (PC-7) .More number and weight of seeds/fruit were recorded in G22 (PC-2057). Out of all the 72 interactions, G23E1 was found better for number and weight of fruits/ plant whereas, G23E1 (254.42 q/ha), G22E1 and G2E2 produced higher red ripen fruit yield over rest of the interactions.