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data at Tevatron and possible new physics |
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Authors: | AMOL DIGHE DIPTIMOY GHOSH ANIRBAN KUNDU SUNANDO KUMAR PATRA |
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Institution: | 1. Department of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, India 2. Department of Physics, University of Calcutta, 92, A.P.C. Road, Kolkata, 700 009, India
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Abstract: | The new physics (NP) is parametrized with four model-independent quantities: the magnitudes and phases of the dispersive part M 12 and the absorptive part ??12 of the NP contribution to the effective Hamiltonian. We constrain these parameters using the four observables ??M s, ????s, the mixing phase $\beta_\mathrm{s}^{J/\psi\phi}$ and $A^b_{\rm sl}$ . This formalism is extended to include charge-parity-time reversal (CPT) violation, and it is shown that CPT violation by itself, or even in the presence of CPT-conserving NP without an absorptive part, helps only marginally in the simultaneous resolution of these anomalies. |
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