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  • Kumar, Girish; Mahajan, Namit (Cornell University Library, 2015-11)
    The semi-leptonic baryonic b→s decay, Λb→Λℓ+ℓ−, has been studied and new angular observables and asymmetries have been proposed which can test the presence of new physics beyond the standard model.
  • Hati, Chandan; Kumar, Girish; Mahajan, Namit (Cornell University Library, 2015-11)
    Recent experimental results from the LHCb, BaBar and Belle collaborations on the semitauonic decays of B meson, \bar{B}\rightarrow D^{(\ast)}\tau \bar{\nu}, showing a significant deviation from the Standard Model (SM), ...
  • Kumar, Girish; Mahajan, Namit (arXiv, Cornell University Library, 2014-12)
    We calculate the zeroes of angular observables P′4 and P′5 of 4 - body angular distribution of B→K∗(→Kπ)l+l− where LHCb, in its analysis of form factor independent angular observables, has found deviations from standard ...
  • Das, Diganta; Kindra, Bharti; Kumar, Girish; Mahajan, Namit (Cornell University Library, 2018-12)
    We study the rare decay B→K∗2(1430)(→Kπ)ℓ+ℓ− in the Standard Model and beyond. Working in the transversity basis, we exploit the relations between the heavy-to-light form factors in the limit of heavy quark (mb→∞) and large ...
  • Kindra, Bharti; Mahajan, Namit (Cornell University Library, 2017-09)
    A method to extract Wilson coefficients for semi-leptonic b→s transition and form factors for the hadronic process B→K∗μ+μ− is suggested. The method is based on data of angular distribution of the process B→K∗(→Kπ)μ+μ− ...
  • Arya, Richa; Mahajan, Namit; Rangarajan, Raghavan (Cornell University Library, 2016-08)
    We study the production of spin 1/2 gravitinos in a thermal Universe. Taking into account supersymmetry breaking due to the finite thermal energy density of the Universe, there is a large enhancement in the cross section ...
  • Kindra, Bharti; Mahajan, Namit (Cornell University Library, 2018-03)
    Exclusive semileptonic decays based on b→s transitions have been attracting a lot of attention as some angular observables deviate significantly from the Standard Model (SM) predictions in specific q2 bins. B meson decays ...
  • Das, Diganta; Hati, Chandan; Kumar, Girish; Mahajan, Namit (Cornell University Library, 2016-05)
    We present a unified explanation for the B-decay anomalies in RD(∗) and RK together with the anomalous muon magnetic moment, consistent with the constraints from the current measurements of leptonic decay rates and D0−D¯0, ...

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