3 t → bW in NonCommutative Standard Model

Singlet scalar dark matter in noncommutative space

In this paper, we examine the singlet scalar dark matter annihilation to becoming the Standard Model particles in the non-commutative space. In the recent decades, many candidates of dark matter have been offered,  but our information about  the nature of dark matter is still limited. There are such particle candidates as  scalar matetr, fermion, boson, gauge boson, etc.; however, they have nei...

ضریب گشتاور مغناطیسی لپتون باردار در فضا- زمان ناجابه‌جایی

 The g-factor of the charged leptons has always been considered by many physicists, both experimentaly as well as theoretically. In fact the electron and muon g-factor play the main role in testing the QED as well as the standard model. Meanwhile, there is a discrepancy between the standard model prediction of the muon anomalies magnetic moment and its experimental determination as large as (25...

Lorentz Conserving Noncommutative Standard Model

We consider Lorentz conserving noncommutative field theory to construct the Lorentz conserving noncommutative standard model based on the gauge group SU(3)×SU(2)×U(1). We obtain the enveloping algebra-valued of Higgs field up to the second order of θ. We derive the action at the leading order and find new vertices which are absent in the ordinary Standard Model as well as the minimal noncommuta...

CP - violation from Noncommutative Geometry ∗

If the geometry of space-time is noncommutative, i.e. [x µ , x ν ] = iθ µν , then noncommutative CP violating effects may be manifest at low energies. For a noncommutative scale Λ ≡ θ −1/2 ≤ 2 T eV , CP violation from noncommutative geometry is comparable to that from the Standard Model (SM) alone: the noncommutative contributions to ǫ and ǫ ′ /ǫ in the K-system, and to sin 2β in the B-system, ...

ar X iv : h ep - t h / 03 10 14 5 v 1 1 5 O ct 2 00 3 Noncommutative geometry and the standard model