We consider the neutrino mixing angles in an SO(10) GUT with the usual Higgs structure in which neutrino masses are explained by the type-I see-saw mechanism. The Dirac-neutrino Yukawa matrix then has a structure similar ...
Rajasekaran G.(American Institute of Physics, 1995)
The recent discoveries of new forms of quantum statistics require a close look at the under-lying Fock space structure. This exercise becomes all the more important in order to provide a general classification scheme for ...
This is an elementary review of the history and physics of neutrinos. The story of the discovery of neutrino mass through neutrino oscillations is described in some detail. Experiments on solar neutrinos and atmospheric ...
The standard model based on the gauge group SU(3) x SU(2) x U(1) describes all that is presently-known of high energy physics. Our aim in this chapter is to build it up from the beginning.
We consider the case of light dark matter (∼10 GeV). We discuss a simple Z2 model of scalar self-interacting dark matter, as well as a related model of unstable long-lived dark matter which can explain the anomalous Kolar ...
We consider the neutrino mixing angles in an SO(10) GUT with the usual Higgs structure in which neutrino masses are explained by the type-I see-saw mechanism. The Dirac-neutrino Yukawa matrix then has a structure similar ...
Rajasekaran G.(American Institute of Physics, 1995)
The recent discoveries of new forms of quantum statistics require a close look at the under-lying Fock space structure. This exercise becomes all the more important in order to provide a general classification scheme for ...
This is an elementary review of the history and physics of neutrinos. The story of the discovery of neutrino mass through neutrino oscillations is described in some detail. Experiments on solar neutrinos and atmospheric ...
The standard model based on the gauge group SU(3) x SU(2) x U(1) describes all that is presently-known of high energy physics. Our aim in this chapter is to build it up from the beginning.
We consider the case of light dark matter (∼10 GeV). We discuss a simple Z2 model of scalar self-interacting dark matter, as well as a related model of unstable long-lived dark matter which can explain the anomalous Kolar ...
Rajasekaran G.(Indian Association for the Cultivation of Science (IACS), 1998)
A broad survey of High Energy Physics (HEP) both within as well as beyond the Standard Model is presented emphasizing the unsolved problems. Inspite of the spectacular success of the Standard Model, there is a serious ...
We construct a new form of supersymmetric quantum mechanics named orthosupersymmetric quantum mechanics. We show that there are p orthosupercharges Qα (α= 1,2, …, p) which satisfy the algebra
where H is the Hamiltonian. ...
We suggest the experimental study of as a test to distinguish between the fractionally charged quark (FCQ) model and the integrally charged quark (ICQ) model. We find that the strong dip in cross section at cos θ=−1/3 (θ ...
We prove a factorization property relating the photon exchange, the Z boson exchange and the electroweak interference terms of the differential cross-section for the process fermion+ antifermion→bosons occurring through ...
Srubabati Goswami; Raghavan Rangarajan; Rajasekaran G.(Indian Academy of Sciences, Bangalore, 2004)
This is the report of neutrino and astroparticle physics working group at WHEPP-8. We present the discussions carried out during the workshop on selected topics in the above fields and also indicate progress made subsequently. ...
Mishra A.K.; Rajasekaran G.(Indian Academy of Sciences, 1991)
We construct the algebra of the creation and destruction operators for spin 1/2 particles obeying a new exclusion principle which is “more exclusive” than Pauli’s exclusion principle: an orbital state shall not contain ...
After a brief history, we focus on the present status of HEP and its possible future. Ideas to ensure a healthy growth of HEP in India are discussed. This involves a few major experimental projects in fundamental physics. ...