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- M Haghighat, S M Zebarjad, F Loran
- 2001

We obtain positronium Hyperfine Splitting owing to the non-commutativity of space and show that, in the leading order, it is proportional to θα 6 where, θ is the parameter of non-commutativity. It is also shown that spatial non-commutativity splits the spacing between n = 2 triplet excited levels E(2 3 S 1) → E(2 3 P 2) which provides an experimental test… (More)

We consider the Lorentz invariant non-commutative QED and complete the Feynman rules for the theory up to the order θ 2. In the Lorentz invariant version of the non-commutative QED the particles with fractional charges can be also considered. We show that in the parton model, even at the lowest order, the Bjorken scaling violates as ∼ θ 2 Q 4 .

- M. Haghighat
- 2002

In the context of the field theory we show that for particles with opposite non-commutativity, in QED, there is no correction for the two-body bound state at the tree level. Consequently, the Helium atom is considered in the non-commutative space. It is shown that the effects of spatial non-commutativity appear at the tree level and they are of the order α

- M. Haghighat
- 2002

The Bethe-Salpeter equation in non-commutative QED (NCQED) is considered for three-body bound state. We study the non-relativistic limit of this equation in the instantaneous approximation and derive the corresponding Schrödinger equation in non-commutative space. It is shown that the experimental data for Helium atom puts an upper bound on the magnitude of… (More)

- M Haghighat, M Savabieasfahani, Y Nikpour, H Pashazanoosi
- Bulletin of environmental contamination and…
- 2011

Total mercury in muscle and liver of Oriental sole from the largest inlet in the Persian Gulf was evaluated. Fish were collected from three channels of Moses Inlet near a chlor-alkali plant. Ahamdi and Jafari channels were closest to this plant and Ghanam was farther away. We sampled in August 2007 and February 2008. The overall estimated marginal mean for… (More)

- S M Zebarjad, M Haghighat
- 2002

We derive Spinless Salpeter equation for the positronium using the NRQED La-grangian. Consequently, we consider the Spinless Salpeter wavefunction instead of the Schrodinger wavefunction to show that the NRQED calculation can be done easier. We also discuss that the singularity of the Spinless Salpeter wavefunction at the origin is necessary to cancel the… (More)

- M. Haghighat
- 2001

Bethe-Salpeter equation in the non-commutative space for a scalar-scalar bound state in the ladder approximation with instantaneous interaction is considered. We show that spatial non-commutativity leads to the normal Zeeman effects on the spectra of two body bound state.

- M. Haghighat
- 2001

Bethe-Salpeter equation in the non-commutative space for a scalar-scalar bound state is considered. It is shown that in the non-relativistic limit, the effect of spatial non-commutativity appears as if there exist a magnetic dipole moment coupled to each particle.

- M. Haghighat, A. Dadkhah
- 2003

The Klein-Gordon equation with scalar potential is considered. In the Feshbach-Villars representation the annihilation operator for a linear potential is defined and its eigenstates are obtained. Although the energy levels in this case are not equally-spaced, depending on the eigenvalues of the annihilation operator, the states are nearly coherent and… (More)

In the current world, sports produce considerable statistical information about each p layer, team, games, and seasons. Traditional sports science believed science to be o wned by experts, coaches, team managers, and analyzers. However, sports organizations have recently realized the abundant science available in their data and sought to take advantage of… (More)

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