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Unification and Supersymmetry

2013-06-29 Science
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Release : 2013-06-29
Genre : Science
Kind : eBook
Book Rating : 280/5 ( reviews)

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Book Synopsis Unification and Supersymmetry by : Rabindra N. Mohapatra

Download or read book Unification and Supersymmetry written by Rabindra N. Mohapatra. This book was released on 2013-06-29. Available in PDF, EPUB and Kindle. Book excerpt: The theoretical understanding of elementary particle interactions has under gone a revolutionary change during the past one and a half decades. The spontaneously broken gauge theories, which in the 1970s emerged as a prime candidate for the description of electro-weak (as weIl as strong) interactions, have been confirmed by the discovery of neutral weak currents as weIl as the w- and Z-bosons. We now have a field theory of electro-weak interactions at energy scales below 100 GeV-the Glashow-Weinberg-Salam theory. It is a renormalizable theory which enables us to do calculations without en countering unnecessary divergences. The burning question now is: Wh at lies ahead at the next level of unification? As we head into the era of supercolliders and ultrahigh energy machines to answer this question, many ap, pealing possi bilities exist: left-right symmetry, technicolor, compositeness, grand unifica ti on, supersymmetry, supergravity, Kaluza-Klein models, and most recently superstrings that even unify gravity along with other interactions. Experi ments will decide if any one or any combination of these is to be relevant in the description of physics at the higher energies. As an outcome of our con fidence in the possible scenerios for elementary particle physics, we have seen our understanding of the early uni verse improve significantly.

Unification and Supersymmetry

1986 Grand unified theories (Nuclear physics)
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Release : 1986
Genre : Grand unified theories (Nuclear physics)
Kind : eBook
Book Rating : 307/5 ( reviews)

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Book Synopsis Unification and Supersymmetry by :

Download or read book Unification and Supersymmetry written by . This book was released on 1986. Available in PDF, EPUB and Kindle. Book excerpt: The theoretical understanding of elementary particle interactions has under gone a revolutionary change during the past one and a half decades. The spontaneously broken gauge theories, which in the 1970s emerged as a prime candidate for the description of electro-weak (as weIl as strong) interactions, have been confirmed by the discovery of neutral weak currents as weIl as the w- and Z-bosons. We now have a field theory of electro-weak interactions at energy scales below 100 GeV-the Glashow-Weinberg-Salam theory. It is a renormalizable theory which enables us to do calculations without en countering unnecessary divergences. The burning question now is: Wh at lies ahead at the next level of unification? As we head into the era of supercolliders and ultrahigh energy machines to answer this question, many ap,pealing possi bilities exist: left-right symmetry, technicolor, compositeness, grand unifica ti on, supersymmetry, supergravity, Kaluza-Klein models, and most recently superstrings that even unify gravity along with other interactions. Experi ments will decide if any one or any combination of these is to be relevant in the description of physics at the higher energies. As an outcome of our con fidence in the possible scenerios for elementary particle physics, we have seen our understanding of the early uni verse improve significantly.

Supersymmetry, Supergravity, and Unification

2017 Science
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Release : 2017
Genre : Science
Kind : eBook
Book Rating : 023/5 ( reviews)

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Book Synopsis Supersymmetry, Supergravity, and Unification by : Pran Nath

Download or read book Supersymmetry, Supergravity, and Unification written by Pran Nath. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive discussion of developments at the interface of particle physics, supergravity, and cosmology, for graduates and researchers.

Supersymmetric Grand Unified Theories

2017-04-29 Science
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Release : 2017-04-29
Genre : Science
Kind : eBook
Book Rating : 554/5 ( reviews)

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Book Synopsis Supersymmetric Grand Unified Theories by : Stuart Raby

Download or read book Supersymmetric Grand Unified Theories written by Stuart Raby. This book was released on 2017-04-29. Available in PDF, EPUB and Kindle. Book excerpt: These course-tested lectures provide a technical introduction to Supersymmetric Grand Unified Theories (SUSY GUTs), as well as a personal view on the topic by one of the pioneers in the field. While the Standard Model of Particle Physics is incredibly successful in describing the known universe it is, nevertheless, an incomplete theory with many free parameters and open issues. An elegant solution to all of these quandaries is the proposed theory of SUSY GUTs. In a GUT, quarks and leptons are related in a simple way by the unifying symmetry and their electric charges are quantized, further the relative strength of the strong, weak and electromagnetic forces are predicted. SUSY GUTs additionally provide a framework for understanding particle masses and offer candidates for dark matter. Finally, with the extension of SUSY GUTs to string theory, a quantum-mechanically consistent unification of the four known forces (including gravity) is obtained. The book is organized in three sections: the first section contains a brief introduction to the Standard Model, supersymmetry and the Minimal Supersymmetric Standard Model. Then SUSY GUTs in four space-time dimensions are introduced and reviewed. In addition, the cosmological issues concerning SUSY GUTs are discussed. Then the requirements for embedding a 4D SUSY GUT into higher-dimensional theories including gravity (i.e. String Theory) are investigated. Accordingly, section two of the course is devoted to discussing the so-called Orbifold GUTs and how in turn they solve some of the technical problems of 4D SUSY GUTs. Orbifold GUTs introduce a new set of open issues, which are then resolved in the third section in which it is shown how to embed Orbifold GUTs into the E(8) x E(8) Heterotic String in 10 space-time dimensions.

Grand Unification With And Without Supersymmetry And Cosmology Implications

1985-02-28 Science
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Release : 1985-02-28
Genre : Science
Kind : eBook
Book Rating : 066/5 ( reviews)

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Book Synopsis Grand Unification With And Without Supersymmetry And Cosmology Implications by : Antonio Masiero

Download or read book Grand Unification With And Without Supersymmetry And Cosmology Implications written by Antonio Masiero. This book was released on 1985-02-28. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the present status of art of grand unification with and without supersymmetry (gravity), including cosmological consequences. It is addressed to graduate students and researchers interested in this fastly developing field. But without necessarily any previous experience, however, at least some parts of the book and, in particular, those concerning the most recent developments, are of interest to actively involved researchers in the field.

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