Recently added

DSpace at IMSc: Recent submissions

  • Rosenbluth scattering with Pauli moment for the electron 
    Basu R.; Murthy M.V.N.; Rajasekaran G. (1991)
    The authors show that the explicit inclusion of the effect of the anomalous magnetic moment for the electron in the electron-proton scattering cross section leads to contradictions with experimental data.
  • Superstrings: Another view 
    Rajasekaran G.; Tuan S.F. (1987)
    [No abstract available]
  • High scale mixing unification and large neutrino mixing angles 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (2004)
    Starting with the hypothesis that quark and lepton mixings are identical at or near the grand unified theory scale, we show that the large solar and atmospheric neutrino mixing angles together with the small reactor angle ...
  • Neutrinos from stellar collapse: Effects of flavor mixing 
    Dutta G.; Indumathi D.; Murthy M.V.N.; Rajasekaran G. (2000)
    We study the effect of nonvanishing masses and mixings among neutrino flavors on the detection of neutrinos from stellar collapse by a water Cherenkov detector. We consider a realistic framework in which there are three ...
  • Neutrino oscillation probabilities: Sensitivity to parameters 
    Indumathi D.; Murthy M.V.N.; Rajasekaran G.; Sinha N. (2006)
    We study in detail the sensitivity of neutrino oscillation probabilities to the fundamental neutrino parameters and their possible determination through experiments. The first part of the paper is devoted to the broad theme ...
  • Algebras of creation and destruction operators 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1993)
    A general analysis of bilinear algebras of creation and destruction operators is performed. Generalizing the earlier work on the single-parameter q-deformation of the Heisenberg algebra, we study two-parameter and ...
  • Algebra for fermions with a new exclusion principle 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 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 ...
  • Bi-large neutrino mixings by radiative magnification 
    Mohapatra R.N.; Parida M.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2004)
    Starting with the unification hypothesis of mixings of quarks and leptons and small quark-like mixings at the see-saw scale, we find that two large mixings for νe, -νμ and νμ - ντ at the weak scale are obtained as a result ...
  • Generalized Fock spaces, new forms of quantum statistics and their algebras 
    Mishra A.K.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1995)
    We formulate a theory of generalized Fock spaces which underlies the different forms of quantum statistics such as ‘infinite’, Bose-Einstein and Fermi-Dirac statistics. Single-indexed systems as well as multi-indexed systems ...
  • Validity of the equivalent-photon approximation for the production of massive spin-1 particles 
    Jayaraman T.; Rajasekaran G.; Rindani S.D. (Indian Academy of Sciences, Bangalore, 1986)
    We point out that the equivalent-photon approximation (EPA) for processes with massive spin-1 particles in the final state would have validity in a more restricted kinematic domain than for processes where it is commonly ...
  • Stability of the S matrix pole 
    Rajasekaran G.; Vasan S.S. (Indian Academy of Sciences, Bangalore, 1990)
    We show how the position and residue of the S matrix pole can remain stable under changes in the form of the parametrization of the S matrix elements. We also derive a relation among the shifts in the Breit-Wigner resonance ...
  • Higgs couplings in the integer-charge quark model 
    Lakshmibala S.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 1986)
    Colour SU(3) symmetry is broken spontaneously by the introduction of coloured Higgs scalars in the standard SU(3)×SU(2)×U(1) model, so as to make the quarks integrally charged. The resulting couplings of the Higgs bosons ...
  • One-pion events by atmospheric neutrinos: A three-flavor analysis 
    Balaji K.R.S.; Rajasekaran G.; Umasankar S. (World Scientific Publishing Co. Pte Ltd, 2001)
    We study the one-pion events produced via neutral current (NC) and charged current (CC) interactions by the atmospheric neutrinos. We analyze the ratios of CC events to the NC events in the framework of neutrino oscillations. ...
  • Neutrino mixings and leptonic CP violation from CKM matrix and Majorana phases 
    Agarwalla S.K.; Parida M.K.; Mohapatra R.N.; Rajasekaran G. (2007)
    The high scale mixing unification hypothesis recently proposed by three of us (R.N.M., M.K.P. and G.R.) states that if at the seesaw scale the quark and lepton mixing matrices are equal, then for quasidegenerate neutrinos ...
  • Anomalous Kolar events revisited: Dark matter? 
    Murthy M.V.N.; Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2014)
    The possibility of the unexplained Kolar events, recorded in the 1970s and 1980s, being due to the decays of dark matter particles of mass in the range of 510 GeV, is pointed out. © Indian Academy of Sciences.
  • Working group report: Neutrino physics 
    Choubey S.; Indumathi D.; Agarwalla S.; Bandyopadhyay A.; Bhattacharyya G.; Chun E.J.; Dasgupta B.; Dighe A.; Ghoshal P.; Giri A.K.; Goswami S.; Hirsch M.; Kajita T.; Kaplinghat M.; Mani H.S.; Mohanta R.; Murthy M.V.N.; Pakvasa S.; Parida M.K.; Rajasekaran G.; Ray S.; Rodejohann W.; Roy P.; Umasankar S.; Schwetz T.; Sinha N. (Indian Academy of Sciences, Bangalore, 2009)
    This is the report of the neutrino physics working group at WHEPP-X. We summarize the problems selected and discussed at the workshop and the papers which have resulted subsequently. © Indian Academy of Sciences.
  • Neutrino condensate as origin of dark energy 
    Bhatt J.R.; Desai B.R.; Ma E.; Rajasekaran G.; Sarkar U. (2010)
    We propose a new solution to the origin of dark energy. We suggest that it was created dynamically from the condensate of a singlet neutrino at a late epoch of the early Universe through its effective self-interaction. ...
  • Möller and Bhabha scattering in the noncommutative standard model 
    Das P.K.; Deshpande N.G.; Rajasekaran G. (2008)
    We study the Möller and Bhabha scattering in the noncommutative extension of the standard model using the Seiberg-Witten maps of this to first order of the noncommutative parameter θμν. We look at the angular distribution ...
  • Murray Gell-Mann (1929-2019) and the Story of Strong Interactions 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2019)
    Murray Gell-Mann, who passed away at the age of 90 years was a giant of modern particle physics. His most well-known contribution is the proposal that protons and neutrons are not indivisible but are made up of smaller ...
  • A crisis in fundamental physics 
    Rajasekaran G. (Indian Academy of Sciences, Bangalore, 2016)
    [No abstract available]