Study of 1D stranged-charm meson family using HQET

Recently LHCb predicted spin 1 and spin 3 states D* s1(2860) and D* s3(2860) which are studied through their strong decays, and are assigned to fit the 13D1and 13D3 states in the charm spectroscopy. In this paper,using the heavy quark effective theory, we state that assigning D*s1(2860) as the mixing of 13D1 - 23S1 states, is rather a better justification to its observed experimental values than a pure state. We study its decay modes variation with hadronic coupling constant gxh and the mixing angle . We appoint spin 3 state D* s3(2860) as the missing 1D 3- JP state, and also study its decay channel behavior with coupling constant gyh. To appreciate the above results, we check the variation of decay modes for their spin partners states i.e. 1D2 and 1D'2 with their masses and strong coupling constant i.e. gxh and gyh. Our calculation using HQET approach give mixing angle between the 13D1 - 23S1 state for D* s1(2860) to lie in the range (-1.6 radians < theta < -1.2 radians). Our calculation for coupling constant values gives gxh to lie between value 0:17 < gxh < 0:20 and gyh to be 0.40. We expect from experiments to observe this mixing angle to verify our results.Comment: 11 pages, 9 figure and 5 Tables, EPJC 2015 communicate

Masses and Strong Decay properties of Radially Excited Bottom states B(2S)and B(2P) with their Strange Partners Bs(2S) and Bs(2P)

In this paper, we analyzed the experimentally available radially excited charm mesons to predict the similar spectra for the n=2 bottom mesons. In the heavy quark effective theory, we explore the flavor independent parameters to calculate the masses for the experimentally unknown n=2 bottom mesons B(2S), B(2P), Bs(2S) and Bs(2P). We have also analyzed these bottom masses by applying the QCD and 1/mQ corrections to the lagrangian leading to the modification of flavor symmetry parameters as. Further strong decay widths are determined using these calculated masses to check the sensitivity of these corrections for these radially excited mesons. The calculated decay widths are in the form of strong coupling constant geHH, egSH and egTH. We concluded that these corrections are less sensitive for n=2 masses as compared to n=1 masses. Branching ratios and branching fractions of these states are calculated to have a deeper understanding of these states. These predicted values can be confronted with the future experimental data.Comment: 11 Pages, 6 Table

Coolie: An Epic of Injustice and Exploitation

The nineteen-thirties were the most tumultuous years in Indian history. It was the time of Indian struggle for independence and everybody was effected by the impact of this even poetry, drama and novel too. So Anand could not remain uninfluenced by it. He suffered a lot so this made him hate imperialism. He was aware of the sufferings of our people from poverty and squalor. No one in India had yet written the epic on this suffering adequately because the realities were too crude for a writer like Tagore. Mulk Raj Anand a great Indian novelist draws our attention through his immortal characters Munno and Bakha, from real society. As a novelist he speaks on realism, conflict, humanism and exploitations. Anand wrote about real people whom he knew quite closely. Mulk Raj Anand awakens social conscience by his works. He arouses sympathetic feeling of readers for the oppressed and under-privileged, who suffer a lot