Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar Mass Difference in Four Generation Standard Mode

Combining the measured B_s mixing with b \to s\ell^+\ell^- rate data, we find a sizable 4 generation t' quark effect is allowed, for example with m_{t'} \sim 300 GeV and V_{t's}^*V_{t'b} \sim 0.025 e^{\pm i 70^\circ}, which could underly the new physics indications in CP violation studies of b \to s qbar q transitions. With positive phase, large and negative mixing-dependent CP violation in B_s system is predicted, \sin 2\Phi_{B_s} \sim -0.5 to -0.7. This can also be probed via width difference methods. As a corollary, the short distance generated D^0-D^0bar mass difference is found to be consistent with, if not slightly higher than, recent B factory measurements, while CP violation is subdued with \sin 2\Phi_D \sim -0.2.Comment: 5 pages, 3 figures added (to total of 11 figures), revision to clarify b -> s photon contrast with Bs and D mixin

«Magni baroni certo e regi quasi». I Malaspina fra Lunigiana, Lucca e Sardegna**

«This paper analyzes the politics of the Marquesses Malaspina between Lunigiana, Lucca and Sardinia in the first half of the 14th century. After the formation of a strong territorial lordship in the island about the castles of Bosa and Osilo, initially of the year 1300 the designs of expansion of the Malaspina had to face analogous those of Sassari’s Comune: a situation on which without a doubt it weighed the perspective of the arrival imminent in Sardinia of the king of Aragon. In this case Lucca’s role, as a mediator and backer of the marquises, is often decisive in Lunigiana that in Sardinia, especially as a bridge with the Crown of Aragon»

Baryon Number Violation Involving Higher Generations

Proton stability seems to constrain rather strongly any baryon number violating process. We investigate the possibility of baryon number violating processes involving right-handed dynamics or higher generation quarks. Our results strongly suggest that there will be no possibility to observe baryon number violation in tau or higher generation quark decays, at any future machine.Comment: Improved figures, small changes in the text, added reference. To appear in Phys. Rev.

Complete CKM quark mixing via dimensional deconstruction

It is shown that the deconstruction of $[SU(2)\times U(1)]^N$ into $[SU(2)\times U(1)]$ is capable of providing all necessary ingredients to completely impliment the complex CKM mixing of quark flavors. The hierarchical structure of quark masses originates from the difference in the deconstructed chiral zero-mode distribution in theory space, while the CP-violating phase comes from the genuinely complex vacuum expectation value of link fields. The mixing is constructed in a specific model to satisfy experimental bounds on quarks' masses and CP violation.Comment: RevTex4, 25 pages, typos in section IIC corrected, published versio