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CP-violating effects in decays of B mesons offer a wide spectrum of probes for testing the phase structure of the quark-flavour sector of the Standard Model. After a brief discussion of the picture emerging from the current LHC data, the…

High Energy Physics - Phenomenology · Physics 2015-06-22 Robert Fleischer

In this presentation, we discuss recent key topics in theoretical analyses of CP violation in benchmarks decays of the $B$ meson. We provide the most updated values of the mixing phases and discuss the importance of including the penguin…

High Energy Physics - Phenomenology · Physics 2024-02-28 Eleftheria Malami

We analyse the general constraints on unified gauge models with spontaneous CP breaking that satisfy the conditions that (i) CP violation in the quark sector is described by a realistic complex CKM matrix, and (ii) there is no significant…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. C. Branco , R. N. Mohapatra

It is well known that supersymmetric models allow new sources for CP violation that arise from soft supersymmetry breaking terms. If unsuppressed, these new CP-violating phases would give too large a neutron electric dipole moment. We…

High Energy Physics - Phenomenology · Physics 2015-06-25 Kiwoon Choi

We use the recently derived CP phase dependent analytic results for the supersymmetric electro-weak correction to $g_{\mu}-2$ to constrain the explicit CP phases in softly broken supersymmetry using the new physics effect seen in the g-2…

High Energy Physics - Phenomenology · Physics 2014-11-17 Tarek Ibrahim , Utpal Chattopadhyay , Pran Nath

We analyze the constraints imposed by experimental upper limits on electric dipole moments (EDMs) within the Maximally CP- and Minimally Flavour-Violating (MCPMFV) version of the MSSM. Since the MCPMFV scenario has 6 non-standard…

High Energy Physics - Phenomenology · Physics 2014-11-21 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

CP violations in the kaon system are studied in supersymmetric SU(5) model with right-handed neutrinos. We pay a special attention to the renormalization group effect on the off-diagonal elements of the squark mass matrices. In particular,…

High Energy Physics - Phenomenology · Physics 2014-11-17 Naoyuki Akama , Yuichiro Kiyo , Shinji Komine , Takeo Moroi

We discuss the determination of the CKM parameters from the forthcoming $CP$ violation observables in $B_s \to K^+ K^-$ decays. Combining the information on mixing induced CP violation in $B_s \to K^+ K^-$, with the $B_d \to J/\psi K_s$…

High Energy Physics - Phenomenology · Physics 2010-11-23 A. Salim Safir

Heavy, as yet undiscovered particles, can affect measurements of CP violation in the B system. Measuring CP violation in the Bs system provides an excellent place to observe such effects since Standard Model sources are predicted to produce…

High Energy Physics - Phenomenology · Physics 2014-11-18 Sheldon Stone , Liming Zhang

We present updated results on time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 62 million Upsilon(4S) --> B anti-B decays collected between 1999 and 2001 by…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

We explore charged-Higgs cp-violating effects in a specific type III two-Higgs doublet model which is theoretically attractive as it accommodates the large mass of the top quark in a natural fashion. Two new CP-violating phases arise from…

High Energy Physics - Phenomenology · Physics 2011-03-23 Guo-Hong Wu , Amarjit Soni

We consider the simplest extension of the SM with a complex singlet and a pair of heavy doublet vector quarks, the so-called cSMCS model. In this model, the CP violation can emerge spontaneously as a consequence of the time-dependent phase…

High Energy Physics - Phenomenology · Physics 2020-12-01 Neda Darvishi , Maria Krawczyk

We review the highlights of quark mixing, particle-antiparticle mixing, CP violation and rare K- and B-decays in the Standard Model. The top quark discovery, the precise measurement of its mass, the improved knowledge of the couplings…

High Energy Physics - Phenomenology · Physics 2016-11-03 Andrzej J. Buras , Robert Fleischer

Results of recent searches for new physics in CP violation in charm decays from the BABAR experiment are presented. These results include a measurement of $D^0$ - $\bar{D}^0$ mixing and searches for CP violation in two-body $D^0$ decays, a…

High Energy Physics - Experiment · Physics 2012-10-08 Fernando Palombo

The BABAR experiment at the PEP-II asymmetric B factory at SLAC has collected a large sample of data at the $\Upsilon(4S)$ resonance. I will summarize BABAR's new results on CP violation, B mixing and lifetimes, and a selection of rare B…

High Energy Physics - Experiment · Physics 2007-05-23 Aaron Roodman

We have studied CP violation originated by the phase of the neutrino mixing matrix in the long baseline neutrino oscillation experiments. The direct measurements of CP violation is the difference of the transition probabilities between…

High Energy Physics - Phenomenology · Physics 2014-11-17 Morimitsu Tanimoto

We propose that the CP violating phase in the CKM mixing matrix is identical to the CP phases responsible for the spontaneous CP violation in the Higgs potential. A specific multi-Higgs model with Peccei-Quinn (PQ) symmetry is constructed…

High Energy Physics - Phenomenology · Physics 2008-11-26 Shao-Long Chen , N. G. Deshpande , Xiao-Gang He , Jing Jiang , Lu-Hsing Tsai

We study the CP violation of universal seesaw model, especially its quark sector. The model is based on SU(2)_L \times SU(2)_R \times U(1)_{Y^\prime}. In order to count the number of parameters in quark sector, we use the degree of freedom…

High Energy Physics - Phenomenology · Physics 2015-06-16 Ryomu Kawasaki , Takuya Morozumi , Hiroyuki Umeeda

Using primarily experimental inputs for S(B -> psi Ks), Delta M_Bs, Delta M_Bd, BR(B -> tau nu) and epsilon_K along with necessary inputs from the lattice, we find that the measured value of sin(2 beta) is smaller than expectations of the…

High Energy Physics - Phenomenology · Physics 2011-06-27 E. Lunghi , A. Soni

We study Standard Model extensions with isodoublet vector-like quarks with standard charges. Their presence induces right-handed charged and neutral currents. We identify minimal sets of independent parameters characterizing these…

High Energy Physics - Phenomenology · Physics 2025-08-11 F. Albergaria , J. F. Bastos , B. Belfatto , G. C. Branco , J. T. Penedo , A. Rodríguez-Sánchez , J. I. Silva-Marcos
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