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Factorization fits to charmless strangeless B decays
W. N. Cottingham, I. B. Whittingham, F. F. Wilson
We present fits to charmless strangeless hadronic B decay data for mean branching ratios and CP-violating asymmetries using the QCD factorization model of Beneke et al. Apart from…
Factorisation fits and the unitarity triangle
N. de Groot, W. N. Cottingham, I. B. Whittingham
In this paper we present fits to charmless hadronic B decay data from the BaBar, Belle and Cleo experiments using models by Beneke et. al. and Ciuchini et al. When we include the d…
Factorization and hadronic B decays in the heavy quark limit
W. N. Cottingham, I. B. Whittingham, N. de Groot +1
Recent theoretical investigations of two-body hadronic B decays have provided justification for the use of the factorization ansatz to evaluate the B decay matrix elements. Motivat…
Possible Cosmological Implications of the Quark-Hadron Phase Transition
N. Borghini, W. N. Cottingham, R. Vinh Mau
We study the quark-hadron phase transition within an effective model of QCD, and find that in a reasonable range of the main parameters of the model, bodies with quark content betw…
Hadronic B decays: Supersymmetric enhancement and a simple spectator model
W. N. Cottingham, H. Mehrban, I. B. Whittingham
Two aspects of hadronic B decays are investigated. Firstly, the supersymmetric enhancement of hadronic b decays by gluino penguin processes is studied through their effect on the W…
Gluon and gluino penguins and the charmless decays of the b quark
S. A. Abel, W. N. Cottingham, I. B. Whittingham
Gluon mediated exclusive hadronic decays of b quarks are studied within the standard model (SM) and the constrained minimally supersymmetric standard model (MSSM). For all allowed…
The electric dipole moment of the neutron in the constrained minimally supersymmetric standard model
S. A. Abel, W. N. Cottingham, I. B. Whittingham
We analyse the electric dipole moment of the neutron in the MSSM, induced by the renormalisation of the soft-susy breaking terms. We run the RGEs using two-loop expressions for gau…
Spontaneous Baryogenesis in Supersymmetric Models
S. A. Abel, W. N. Cottingham, I. B. Whittingham
In this paper we extend the results of previous work on spontaneous baryogenesis to general models involving CP violation in the Higgs sector. We show how to deal with Chern-Simons…