ar X iv : 0 70 5 . 34 40 v 3 [ he p - th ] 2 5 A pr 2 00 8 Semidensities , Second - Class Constraints and Conversion in Anti - Poisson Geometry

ar X iv : 0 70 5 . 34 40 v 1 [ he p - th ] 2 3 M ay 2 00 7 Semidensities , Second - Class Constraints and Conversion in Anti - Poisson Geometry

We consider Khudaverdian's geometric version of a Batalin-Vilkovisky (BV) operator ∆ E in the case of a degenerate anti-Poisson manifold. The characteristic feature of such an operator (aside from being a Grassmann-odd, nilpotent, second-order differential operator) is that it sends semi-densities to semidensities. We find a local formula for the ∆ E operator in arbitrary coordinates. As an imp...

ar X iv : 0 70 4 . 34 59 v 1 [ he p - ph ] 2 5 A pr 2 00 7 TECHNION - PH - 2007 -

When CP asymmetries in B(t) → ππ are combined using broken flavor SU(3) with those from B → Kπ and/or B → Kπ, one can obtain stringent limits on the weak phase γ which are consistent with those obtained from other CKM constraints. Experimental data in the past few years have improved to the extent that systematic errors associated with uncertainty in SU(3) symmetry breaking dominate the determi...

ar X iv : 0 80 4 . 36 29 v 1 [ he p - th ] 2 3 A pr 2 00 8 UT - 08 - 10 M 5 from M 2

Recently an action based on Lie 3-algebras was proposed to describe M2-branes. We study the case of infinite dimensional Lie 3-algebras based on the Nambu-Poisson structure of three dimensional manifolds. We show that the model contains self-dual 2-form gauge fields in 6 dimensions, and the result may be interpreted as the M5-brane world-volume action. 1 e-mail address: [email protected] 2 e...

ar X iv : n uc l - th / 0 50 40 62 v 1 2 1 A pr 2 00 5 1 Structure of 8 B and astrophysical S 17 factor

ar X iv : 0 80 3 . 26 77 v 1 [ he p - th ] 1 8 M ar 2 00 8 SQED 4 and QED 4 on the null - plane

We studied the scalar electrodynamics (SQED4) and the spinor electrodynamics (QED4) in the null-plane formalism. We followed the Dirac’s technique for constrained systems to perform a detailed analysis of the constraint structure in both theories. We imposed the appropriated boundary conditions on the fields to fix the hidden subset first class constraints which generate improper gauge transfor...