پديد آورنده :
اتفاقي، محمد مهدي
عنوان :
جنبه هاي پديده شناسي نظريه ميدان در فضاي ناجابجايي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده فيزيك
صفحه شمار :
[نه]، 135، [II]ص.
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
منصور حقيقت
توصيفگر ها :
نظريه پيمانه اي , قضيه هيچ راه , استاندارد نابجايي , ضرب ستاره اي , نوترينوها , تقارن لورنتس , نگاشت هاي سايبرگ-ويتن
تاريخ نمايه سازي :
19/01/87
استاد مدعو :
محمد مهدي شيخ جباري، ندا صادقي، رسول ركني زاده
تاريخ ورود اطلاعات :
1396/03/08
كد ايرانداك :
ID189 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
Abstract In this thesis rst we give a brief review on two versions of noncommutative standard model NCSM which are NCSM based on SU 3 SU 2 U 1 gauge group and Seiberg Witten maps for the eld contents of the theory NCSM based on U 3 U 2 U 1 gauge symmetry which can be reduced to the standard gauge group by an appropriate Higgs mechanism Then we complete the Seiberg Witten maps for the Higgs and non Abelian gauge elds up to secondorder of the parameter of noncommutativity We extend the noncommutative standard modelbased on the minimal SU 3 SU 2 U 1 gauge group to include the interaction of photon withneutrinos We show that in the gauge invariant manner only the right handed neutrino can directlycouple to the photon Consequently we calculate the photon neutrino scattering cross section andshow that it is comparable with the commutative counterpart provided that the noncommutativescale is of the order of 113 GeV It is also shown that the massive Dirac neutrinos through theHiggs mechanism can not accommodate in this extension of the standard model while the massiveMajorana neutrinos are consistent with the gauge symmetry of the model The electromagneticproperties and the dispersion relations for the neutrino in the noncommutative standard modelis examined These properties is compared with the noncommutative standard model based onU U U Since is constant there is a preferred direction in a given particle Lorentzframe which leads to the Lorentz symmetry violation Therefore we construct the Lorentz conservingNCSM based on SU 3 SU 2 U 1 In this model we obtain the vector and the axial vectorcouplings and then by comparing with experimental data we obtain the lower bound on the Lorentzconserving noncommutative scale in the order of 112 GeV Finally we study the parton model inthe Lorentz conserving NCSM In this model the Bjorken scaling is violated but the Callan Grossrelation still holds Comparing the Bjorken scaling violation with experimental data we nd thatthe lower bound on the Lorentz conserving no commutative scale must be of the order of 300 GeV
استاد راهنما :
منصور حقيقت
