Zobrazeno 1 - 10
of 91
pro vyhledávání: '"S. Rai Choudhury"'
Autor:
Shobhit Mahajan, S. Rai Choudhury
The Aharonov-Bohm effect (ABE) for steady magnetic fields is a well known phenomenon. However, if the current in the infinite solenoid that creates the magnetic field is time-dependent, that is in the presence of both magnetic and electric fields, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ea2049711dac719b4e8940211782eb0
http://arxiv.org/abs/1903.04138
http://arxiv.org/abs/1903.04138
Publikováno v:
The European Physical Journal C. 58:251-259
Flavor changing neutral current (FCNC) decays of the B-meson are a very useful tool for studying possible physics scenarios beyond the standard model (SM), where of the many FCNC modes radiative, purely leptonic and semi-leptonic decays of the B-meso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4cdd59bf75c3126aaf8742b951a1208
https://doi.org/10.1140/epjc/s10052-008-0752-x
https://doi.org/10.1140/epjc/s10052-008-0752-x
Publikováno v:
Pramana. 69:753-757
Though the predictions of the Standard Model (SM) are in excellent agreement with experiments there are still several theoretical problems associated with the Higgs sector of the SM, where it is widely believed that some ``{\it new physics}'' will ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4f366f2e3d876951fb4e8041e453e97
https://doi.org/10.1007/s12043-007-0177-3
https://doi.org/10.1007/s12043-007-0177-3
Publikováno v:
The European Physical Journal C. 49:657-664
Standard Model (SM) CP asymmetries in $B \to K \ell^+ \ell^-$ are expected to be very small. This feature could help in the understanding of new physics scenarios which predict the existence of CP odd phases in various Wilson coefficients. In this pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efb200c2ee7091ed39e630ba7b4878a0
https://doi.org/10.1140/epjc/s10052-006-0141-2
https://doi.org/10.1140/epjc/s10052-006-0141-2
Publikováno v:
International Journal of Modern Physics A. 21:2617-2634
Leptonic decays of $B$-mesons are theoretically very clean probes for testing the Standard Model (SM) and possible physics beyond it. Amongst the various leptonic decays of the $B$-meson, the pure dileptonic decay $B \to \ell^+ \ell^-$ is very import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25c9c31bbabba3be53a90d7ea21b3833
https://doi.org/10.1142/s0217751x06029491
https://doi.org/10.1142/s0217751x06029491
Publikováno v:
Physics Letters B. 601:164-170
An alternate solution of hierarchy problem in the Standard Model namely, the little Higgs model, has been proposed lately. In this work B d 0 – B ¯ d 0 mass difference in the framework of the little Higgs model is evaluated. The experimental limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b8f33a800ccf88097de7829d16dfaec
https://doi.org/10.1016/j.physletb.2004.09.051
https://doi.org/10.1016/j.physletb.2004.09.051
Autor:
S. Rai Choudhury
Publikováno v:
International Journal of Modern Physics B. 14:1975-1987
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a629b3d8c68e44728d2e9411f1cf2960
https://doi.org/10.1142/s0217979200001175
https://doi.org/10.1142/s0217979200001175
Publikováno v:
Physics Letters B. 482:383-387
A complete experiment on decay $K_L \to l^+ l^-$ will not only consist of measurement of the decay rates but also lepton polarization etc. These additional observations will yield tests of CP invariance in these decays. In $K_L$ and $K_S$ decays, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7620964bad3c6d6a7442e69b1ca6957
https://doi.org/10.1016/s0370-2693(00)00523-2
https://doi.org/10.1016/s0370-2693(00)00523-2
Publikováno v:
Physical Review D. 81
Little Higgs models with $T$ parity can easily satisfy electroweak precision tests and at the same time give a stable particle which is a candidate for cold dark matter. In addition to little Higgs heavy gauge bosons, this type of model predicts a se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc5d3bfe24e0098ba8816248aed18844
https://doi.org/10.1103/physrevd.81.075005
https://doi.org/10.1103/physrevd.81.075005
Publikováno v:
Physical Review D. 80
We consider stability of spherically symmetric solutions in f(R) gravity model proposed by Starobinsky. We find that the model suffers from a severe fine-tuning problem when applied to compact objects like neutron stars. The problem can be remedied b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7830ca4fca4a58d594dd28b806413153
https://doi.org/10.1103/physrevd.80.127501
https://doi.org/10.1103/physrevd.80.127501