Course on Grand Unification

Senjanović, Goran

doi:10.1007/978-3-540-73621-9_6

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…They incorporate right-handed neutrinos in the fermionic multiplets and realise the idea of family unification -each Standard Model family snugly fits into an irreducible multiplet, in addition to gauge coupling unification. These theories can be made supersymmetric to achieve gauge coupling unification after crossing the desert [4,5], but, may also -at least in the SO (10) case-lead to nonsupersymmetric unification, if intermediate symmetry breaking scales (oases are thus created in the desert) are introduced between the electroweak scale and the GUT scale [6,5]. In view of all the results obtained so far, and reviewed in [4,5], that GUTs may be relevant in the understanding of the data which will come out of the LHC is a thought that one cannot be rid of easily.…”

Section: Introductionmentioning

confidence: 99%

“…These theories can be made supersymmetric to achieve gauge coupling unification after crossing the desert [4,5], but, may also -at least in the SO (10) case-lead to nonsupersymmetric unification, if intermediate symmetry breaking scales (oases are thus created in the desert) are introduced between the electroweak scale and the GUT scale [6,5]. In view of all the results obtained so far, and reviewed in [4,5], that GUTs may be relevant in the understanding of the data which will come out of the LHC is a thought that one cannot be rid of easily. A thought that is also prompted by the fact that SO (10) and E 6 GUTs arise naturally F-theory [7].…”

Section: Introductionmentioning

confidence: 99%

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Yukawa terms in noncommutative SO(10) andE6GUTs

Martı́n

2010

Phys. Rev. D

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We propose a method for constructing Yukawa terms for noncommutative SO(10) and E 6 GUTs, when these GUTs are formulated within the enveloping-algebra formalism. The most general noncommutative Yukawa term that we propose contains, at first order in θ µν , the most general BRS invariant Yukawa contribution whose only dimensionful parameter is the noncommutativity parameter. This noncommutative Yukawa interaction is thus renormalisable at first order in θ µν .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Yukawa terms in noncommutative SO(10) andE6GUTs

Martı́n

2010

Phys. Rev. D

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“…The huge abundance of neutrinos left over in the universe from the big bang (336/cm 3 ) and their contribution to structure formation [2] as well as the key role of neutrino masses in finding the new Standard Model of particle physics [3,4] make the absolute value of the neutrino mass one of the most urgent questions of astroparticle physics and cosmology as well as of nuclear and particle physics.…”

Section: Introductionmentioning

confidence: 99%

Direct determination of Neutrino Mass from Tritium Beta Spectrum

Weinheimer

2009

Preprint

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The investigation of the endpoint region of the tritium β decay spectrum is still the most sensitive direct method to determine the neutrino mass scale. In the nineties and the beginning of this century the tritium β decay experiments at Mainz and Troitsk have reached a sensitivity on the neutrino mass of 2 eV/c 2 . They were using a new type of high-resolution spectrometer with large sensitivity, the MAC-E-Filter, and were studying the systematics in detail. Currently, the KATRIN experiment is being set up at Forschungszentrum Karlsruhe, Germany. KATRIN will improve the neutrino mass sensitivity by one order of magnitude down to 0.2 eV/c 2 , sufficient to cover the degenerate neutrino mass scenarios and the cosmologically relevant neutrino mass range.

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