B s data at Tevatron and possible new physics

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• 作者：AMOL DIGHE (1)
  DIPTIMOY GHOSH (1)
  ANIRBAN KUNDU (2)
  SUNANDO KUMAR PATRA (2)
  
• 关键词：B physics ; new physics ; CPT violation ; 11.30.Er ; 14.40.Nd
• 刊名：Pramana
• 出版年：2012
• 出版时间：November 2012
• 年：2012
• 卷：79
• 期：5
• 页码：1281-1284
• 全文大小：212KB
• 参考文献：1. CDF Collaboration: T Aaltonen / et al, CDF Note No. CDF/PHYS/BOTTOM/CDFR/9787 (2009) D0 Collaboration: V M Abazov / et al, D0 Note No. 5928-CONF (2009)
  2. Heavy Flavor Averaging Group: D?Asner / et al, arXiv:1010.1589?[hep-ex]
  3. D0 Collaboration: V?M?Abazov / et al, / Phys. Rev. D82, 032001 (2010), arXiv:1005.2757 [hep-ex]; / Phys. Rev. Lett. 105, 081801 (2010), arXiv:1007.0395 [hep-ex] For the 9.0 fb^??- data, see D0 Collaboration: V?M?Abazov / et al, arXiv:1106.6308?[hep-ex]
  4. A?Lenz and U?Nierste, arXiv:1102.4274 [hep-ph]; / J. High Energy Phys. 0706, 072 (2007), arXiv:hep-ph/0612167
  5. CDF Collaboration: T Aaltonen / et al, CDF Note No. 9015 (2007)
  6. A?Datta, E?A?Paschos and L?P?Singh, / Phys. Lett. B548, 146 (2002) K?R?S?Balaji, W?Horn and E?A?Paschos, / Phys. Rev. D68, 076004 (2003)
  7. A?Dighe, D?Ghosh, A?Kundu and S?K?Patra, / Phys. Rev. D84, 056008 (2011), arXiv:1002.1134?[hep-ph]
  
• 作者单位：AMOL DIGHE (1)
  DIPTIMOY GHOSH (1)
  ANIRBAN KUNDU (2)
  SUNANDO KUMAR PATRA (2)
  
  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
  
• ISSN：0973-7111

文摘

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 Γ12 of the NP contribution to the effective Hamiltonian. We constrain these parameters using the four observables ΔM s, ΔΓs, 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.