Internal symmetry breaking in NN-interaction.

Kolat, Aydın


Spontaneous symmetry breaking and higgs mechanism
Kahraman, Işınsu; Turan, İsmail; Department of Physics (2017)
The relevance of Higgs mechanism to nature has been verified recently by two experiments, CMS and ATLAS at Large Hadron Collider. Therefore, a detailed understanding of the mechanismis mportant more than ever.The details of Higgs potential, its stability and mass generation mechanism are going to be explored and the Higgs particle which is the quantum fluctuation of the field will be discussed within the sponteneous symmetry breaking notion. The one loop corrections to the effective potential for various toy m...
Discrete symmetries in quantum theory
Taşdan, İsmail Ufuk; Pak, Namık Kemal; Department of Physics (2015)
In this thesis, one of the most central problems of modern physics, namely the discrete symmetries, is discussed from various perspectives ranging from classical mechanics to relativistic quantum theory. The discrete symmetries, namely charge conjugation (C), parity (P), time reversal (T), which are connected by the so-called CPT Theorem are studied in detail. The anti-particles with a view to matter-anti-matter symmetry is also addressed and the anti-unitarity nature of the time reversal, as well as the CP...
Linearization instability of chiral gravity
Altas, Emel; Tekin, Bayram (American Physical Society (APS), 2018-6-27)
Carrying out an analysis of the constraints and their linearizations on a spacelike hypersurface, we show that topologically massive gravity has a linearization instability at the chiral gravity limit about AdS(3). We also calculate the symplectic structure for all the known perturbative modes (including the log-mode) for the linearized field equations and find it to be degenerate (noninvertible); hence, these modes do not approximate exact solutions and so do not belong to the linearized phase space of the...
Hidden sector through dark higgs: a nonminimal extension
Çıngıloğlu, Kıvanç Yiğit; Turan, İsmail; Department of Physics (2018)
In this thesis, a non-minimal extension of the SM with an additional non-abelian SU(2) symmetry is studied. Hidden sector opens innumerable portals for apprehension of theories beyond the SM, hence there is a wide set of gauge extensions with their own symmetries, providing viable DM candidates. Higgs mechanism and Higgs particle play a crucial role to understand how DM weakly interacts with the SM particles. There may exist unrevealed intensity frontiers in Higgs’ decay modes, and the DM can show up throug...
Colliding gravitational plane waves : bell-szekeres solution
Cambaz, Efsun; Karasu, Atalay; Department of Physics (2005)
The collision of pure electromagnetic plane waves with collinear polarization in Einstein-Maxwell theory and the collision of gravitational plane waves in vacuum Einstein theory are studied. The singularity structure of the Bell-Szekeres and the Szekeres solutions is examined by using curvature invariants. As a final work, the collision of the plane waves in dilaton gravity theory is studied and also the singularity structure of the corresponding space-time is examined.
Citation Formats
A. Kolat, “Internal symmetry breaking in NN-interaction.,” Ph.D. - Doctoral Program, Middle East Technical University, 1982.