Tony Gherghetta
A5017696669- Particle physics theoretical and experimental studies
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
- Computational Physics and Python Applications
- Noncommutative and Quantum Gravity Theories
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- International Science and Diplomacy
- Relativity and Gravitational Theory
- Astrophysics and Cosmic Phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Electrodynamics and Casimir Effect
- High-pressure geophysics and materials
- Pulsars and Gravitational Waves Research
- Quantum many-body systems
- Astronomy and Astrophysical Research
- Quantum chaos and dynamical systems
- Galaxies: Formation, Evolution, Phenomena
- Atomic and Subatomic Physics Research
- Mathematical Dynamics and Fractals
- Advanced Mathematical Physics Problems
- Experimental and Theoretical Physics Studies
University of Minnesota System
2024-2025
University of Minnesota
2015-2024
ARC Centre of Excellence for Particle Physics at the Terascale
2012-2015
The University of Melbourne
2008-2015
Stanford University
2011-2013
Lawrence Berkeley National Laboratory
2008
European Organization for Nuclear Research
1998-2006
University of Lausanne
2000-2002
University of Michigan
1995-1998
The University of Western Australia
1991-1996
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements 721 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All search limits are listed in Summary Tables. also give numerous tables, figures, formulae, reviews...
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,873 new measurements 758 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews...
This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2658 new measurements 644 papers, we list, evaluate, and average measured properties gauge bosons, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as Higgs heavy neutrinos, supersymmetric particles. All the search limits are listed in Summary Tables. also give numerous tables, figures, formulae, reviews topics Standard Model, detectors, probability,...
Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,143 new measurements 709 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae,...
Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements 878 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae,...
The summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements 869 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews topics...
We examine the theoretical motivations for long-lived particle (LLP) signals at LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are common prediction wide range theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, represent natural generic possibility physics beyond SM (BSM). In most cases LLP lifetime can be treated free parameter from $\mu$m scale up to Big Bang Nucleosynthesis limit $\sim 10^7$m....
We present a metric solution in six dimensions where gravity is localized on four-dimensional singular string-like defect. The corrections to from the bulk continuum modes are suppressed by ${\cal O}(1/r^3)$. No tuning of cosmological constant brane tension required order cancel constant.
We show how to incorporate chiral-symmetry breaking in the soft-wall version of anti-de Sitter/QCD model by using a modified dilaton profile and quartic term bulk scalar potential. This allows one separate dependence on spontaneous explicit breaking. Moreover, our 5D automatically incorporates linear trajectories non restoration for highly excited radial states. compare resulting mass spectra scalar, vector, axial-vector sectors with respective QCD resonances find reasonable agreement known...
We consider four-dimensional UV descriptions of composite Higgs models without elementary scalars, in which four-fermion interactions are introduced to an underlying gauge theory like the gauged NJL model. When anomalous dimension fermion bilinear is large, these drive spontaneous global symmetry breaking model, with identified as a Nambu-Goldstone boson. The support top partner operators, also large dimensions, thereby providing explicit realisation idea partial compositeness. In...
Author(s): Contino, R; Curtin, D; Katz, A; Mangano, ML; Panico, G; Ramsey-Musolf, MJ; Zanderighi, Anastasiou, C; Astill, W; Bambhaniya, Behr, JK; Bizon, Dev, PS Bhupal; Bortoletto, Buttazzo, Cao, Q-H; Caola, F; Chakrabortty, J; Chen, C-Y; S-L; Florian, D de; Dulat, Englert, Frost, JA; Fuks, B; Gherghetta, T; Giudice, Gluza, Greiner, N; Gray, H; Hartland, NP; Issever, Jelinski, Karlberg, Kim, JH; Kling, Lazopoulos, Lee, SJ; Liu, Y; Luisoni, Mazzitelli, Mistlberger, Monni, P; Nikolopoulos, K;...
We consider the possibility of an enlarged QCD color group, $\mathrm{SU}(3+{N}^{\ensuremath{'}})$ spontaneously broken to $\mathrm{SU}(3{)}_{c}\ifmmode\times\else\texttimes\fi{}\mathrm{SU}({N}^{\ensuremath{'}})$ with extra vectorlike quarks transforming in fundamental representation. When heavy are integrated out below PQ-breaking scale, they generate axion coupling which simultaneously solves strong $CP$ problem for both gauge groups. However, mass now receives a new nonperturbative...
We consider both "bottom-up" and "top-down" approaches to the origin of gauge kinetic mixing. focus on possibilities for obtaining mixings $\epsilon$ which are consistent with experimental constraints much smaller than naive estimates ($\epsilon \sim 10^{-2} - 10^{-1}$) at one-loop level. In bottom-up approach, we possible suppression from multi-loop processes. Indeed argue that mixing through gravity alone, requires least six loops could be as large $\sim 10^{-13}$. top-down approach...
We present a solution of the five-dimensional gravity-dilaton-tachyon equations motion with pure ${\mathrm{AdS}}_{5}$ metric and quadratic dilaton linear tachyon in conformal coordinates. This leads to an infrared soft-wall model where profile gives rise Regge trajectories for four-dimensional mass spectrum dual gauge theory. Even though our approach is phenomenological scalar fields resemble closed string noncritical Interestingly, has correct imply that chiral symmetry not restored highly...