scholarly journals String Theory and Particle Physics: An Introduction to String PhenomenologyString Theory and Particle Physics: An Introduction to String Phenomenology, Luis E. Ibáñez and Angel M. Uranga, Cambridge U. Press, New York, 2012. $80.00 (673 pp.). ISBN 978-0-521-51752-2

Physics Today ◽  
2013 ◽  
Vol 66 (5) ◽  
pp. 51-52
Author(s):  
Senarath P. de Alwis
2002 ◽  
Vol 17 (supp01) ◽  
pp. 70-83
Author(s):  
MARY K. GAILLARD

The weakly coupled vacuum of E8 ⊗ E8 heterotic string theory remains an attractive scenario for particle physics. The particle spectrum and the issue of dilaton stabilization are reviewed. A specific model for hidden sector condensation and supersymmetry breaking, that respects known constraints from string theory, is described, and its phenomenological and cosmological implications are discussed.


2019 ◽  
Author(s):  
Adib Rifqi Setiawan

Lisa Randall is a theoretical physicist working in particle physics and cosmology. She was born in Queens, New York City, on June 18, 1962. Lisa Randall is an alumna of Hampshire College Summer Studies in Mathematics; and she graduated from Stuyvesant High School in 1980. She won first place in the 1980 Westinghouse Science Talent Search at the age of 18; and at Harvard University, Lisa Randall earned both a BA in physics (1983) and a PhD in theoretical particle physics (1987) under advisor Howard Mason Georgi III, a theoretical physicist. She is currently Frank B. Baird, Jr. Professor of Science on the physics faculty of Harvard University, where he has been for the past a decade. Her works concerns elementary particles and fundamental forces, and has involved the study of a wide variety of models, the most recent involving dimensions. She has also worked on supersymmetry, Standard Model observables, cosmological inflation, baryogenesis, grand unified theories, and general relativity. Consequently, her studies have made her among the most cited and influential theoretical physicists and she has received numerous awards and honors for her scientific endeavors. Since December 27, 2010 at 00:42 (GMT+7), Lisa Randall is Twitter’s user with account @lirarandall. “Thanks to new followers. Interesting how different it feels broadcasting on line vs.via book or article. Explanations? Pithiness? Rapidity?” is her first tweet.


2016 ◽  
Vol 25 (14) ◽  
pp. 1630027 ◽  
Author(s):  
John Ellis

The plethora of recent and forthcoming data on the cosmic microwave background (CMB) data are stimulating a new wave of inflationary model-building. Naturalness suggests that the appropriate framework for models of inflation is supersymmetry. This should be combined with gravity in a supergravity theory, whose specific no-scale version has much to commend it, e.g. its derivation from string theory and the flat directions in its effective potential. Simple no-scale supergravity models yield predictions similar to those of the Starobinsky [Formula: see text] model, though some string-motivated versions make alternative predictions. Data are beginning to provide interesting constraints on the rate of inflaton decay into Standard Model particles. In parallel, LHC and other data provide significant constraints on no-scale supergravity models, which suggest that some sparticles might have masses close to present experimental limits.


2021 ◽  
Author(s):  
Andrey Chernov

Abstract In this study, a new concept is introduced - gravitational cells. The body of a black hole consists of a huge number of such cells. This hypothesis from particle physics has been organically built into string theory. As a result, using the formula for the Schwarzschild radius and the Coulomb formula, a formula was obtained to determine the gravitational constant in the region of black holes and its value was determined. The value of the usual gravitational constant has been confirmed. Also, a new physical constant was obtained - the mass of the gravitational cell of a black hole. The introduction of the hypothesis of gravitational cells into string theory allowed us to apply Planck's formula to gravitational interaction. As a result, the formula for the quantum of the gravitational field was obtained and the frequency of vibrations of gravitational strings was calculated. Based on this, a formula was obtained to determine the mass of an electron. The electron mass calculated by the new formula coincided with the known experimental value. In this work, it was also proved that the vibration frequency of gravitational strings is directly proportional to the ratio of the mass of an electron and a proton inside the gravitational cell (and inside the atom). The formula for the dependence of the gravitational constant on the magnitude of the electron mass was obtained and confirming calculations were made.


2021 ◽  
Vol 2105 (1) ◽  
pp. 012002
Author(s):  
Pascal Anastasopoulos

Abstract The present research proceeding aims at investigating/exploring/sharpening the phenomenological consequences of string theory and holography in particle physics and cosmology. We rely on and elaborate on the recently proposed framework whereby four-dimensional quantum field theories describe all interactions in Nature, and gravity is an emergent and not a fundamental force. New gauge fields, axions, and fermions, which can play the role of right-handed neutrinos, can also emerge in this framework. Preprint: UWThPh 2021-8


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