Correlating the anomalous results in b→s decays with inert Higgs doublet dark matter and the muon g−2

Abstract

In this article, we have considered an extension of the inert Higgs doublet model with SU (2)L singlet vector like fermions. Our model is capable of addressing some interesting anomalous results in b → s + − decays (like R(K ( * ) )) and in muon (g − 2). Apart from explaining these anomalies, and being consistent with other flavour data, the model satisfies relevant constraints in the dark matter sector, while remaining within the reach of ongoing direct detection experiments. The model also produces signatures at the large hadron collider (LHC) with final states comprised of dilepton, dijet and missing energy, providing signals to be probed at higher luminosity.

Complete vectorlike fourth family with U(1)′ : A global analysis

“…[2][3][4][5]. The b → s + − anomaly is addressed by introducing a Z boson [6][7][8][9] and new particles which induce box diagram contributions [10][11][12][13][14][15][16][17][18]. Both anomalies can be explained simultaneously in models with VL fermions and a Z boson [19][20][21][22][23].…”

The Hawking effect and the bounds on greybody factor for higher dimensional Schwarzschild black holes

“…This particular characteristic allows one to express the field modes in terms of plane wave solutions in these regions, a feature necessary for the formulation of the Hawking effect. Then with the help of the near-null coordinates [5,13,14] we provided a Hamiltonian based derivation of the Hawking effect in the Schwarzschild-Tangherlini black hole spacetime. We observed that the temperature corresponding to the Hawking effect is dependent on the spacetime dimensionality and same for both the bulk and brane-localized scalar field.…”

“…Here we define a set of near-null coordinates by slightly deforming the null coordinates [5,13,14]. In particular for observer O − we define the near-null coordinates as…”

“…Using the functional form of potential from Eqn. (14) one can get this bound evaluated to be Γ(ω) ≥ sech 2 6 + 4l 2 + 4l(n − 3) + n 2 − 5n 8ωr H , which is non-zero, finite for any infinitesimally small ω, i.e. for very small frequency also there is some transmission amplitude.…”

“…Then the temperature corresponding to the Hawking effect gets modified. In this work we are going to provide a Hamiltonian based derivation of the Hawking effect in this n−dimensional Schwarzschild-Tangherlini black hole spacetime using the near-null coordinates [5,13,14].…”