Research Interests:
Research Interests:
A summary is given of the results obtained by the Superstring working group. New physics phenomena arising from superstring models that might be detected at the SSC as well as their possible backgrounds were investigated. Topics examined... more
A summary is given of the results obtained by the Superstring working group. New physics phenomena arising from superstring models that might be detected at the SSC as well as their possible backgrounds were investigated. Topics examined were models with extra Z bosons and right handed W bosons, detection of Winos, Zinos and gluinos and production of heavy squarkonium.
Research Interests:
We give explicit formulas for the decays of the Higgs bosons of the minimal supersymmetric model to neutralinos and charginos. The important features of these decays are illustrated and their phenomenological implications discussed. When... more
We give explicit formulas for the decays of the Higgs bosons of the minimal supersymmetric model to neutralinos and charginos. The important features of these decays are illustrated and their phenomenological implications discussed. When phase space allowed, this class of two-body decays is at least as important as, and often dominates, other types of Higgs decay modes, such as WW or ZZ and heavy fermion anti-fermion channels.
Research Interests:
In this paper we consider the Casimir energy and force of massless Majorana fermions and vector bosons between parallel plates. The vector bosons satisfy perfect electric conductor boundary conditions, while the Majorana fermions satisfy... more
In this paper we consider the Casimir energy and force of massless Majorana fermions and vector bosons between parallel plates. The vector bosons satisfy perfect electric conductor boundary conditions, while the Majorana fermions satisfy bag and chiral boundary conditions. We consider various piston configurations containing one vector boson and one fermion. We make use of supersymmetry, broken on the boundaries, to explain the number of fields that appear in all the studied cases. The effect of chiral boundary conditions in a fermion–boson system is investigated. Concerning the supersymmetry issue and the vanishing of the Casimir energy, we study a massive Dirac fermion–scalar boson system with bag and specific Robin type boundary conditions for which the Casimir energy vanishes. Finally, a two-scalar-boson system between parallel plates is presented in which the singularities vanish in the total Casimir energy.
Research Interests: Physics, Nuclear Physics, Particle Physics, Supersymmetry, Modern physics, and 15 moreExtension, Model, Zero Point Energy, Elementary Particle Physics and Field Theory, Casimir Effect, Spacetime, Dirac Fermion, Plates, Fermion, Boolean Satisfiability, Regularization, Boson, Boundary Condition, Finite Temperature, and Majorana
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
... In the most general case one may define the following scales (i) Mu, where a4=azL= a2R ate; ( ii ) MA, where the anomalous U,(1) breaks and a number of fields acquire masses through some singlet fields developing nonzero VEVs. ... [71... more
... In the most general case one may define the following scales (i) Mu, where a4=azL= a2R ate; ( ii ) MA, where the anomalous U,(1) breaks and a number of fields acquire masses through some singlet fields developing nonzero VEVs. ... [71 S. Kalara, JL Lopez and DV Nanopoulos ...
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests: Physics, Theoretical Physics, Quantum Physics, Particle Physics, Dust (Astronomy & Astrophysics), and 14 moreSupersymmetry, Effective Field Theory, Cosmology, Gravity, Standard Model, Low Energy Buildngs, Physical, Change process, Spectrum, Renormalization Group, Yukawa Potential, Gauge Symmetry, Elementary Particles, and Gauge invariance
ABSTRACT We calculate the three-loop β function for the Gross-Neveu model, showing explicitly the techniques used to minimize the number of diagrams needed to be evaluated. The lack of a term quadratic in N suggests that an N-independent... more
ABSTRACT We calculate the three-loop β function for the Gross-Neveu model, showing explicitly the techniques used to minimize the number of diagrams needed to be evaluated. The lack of a term quadratic in N suggests that an N-independent coupling rescaling could possibly eliminate all but the first two terms of the β function.
Research Interests:
Research Interests: Mathematical Physics, Physics, Nuclear Physics, Quantum Physics, Particle Physics, and 11 moreSupersymmetry, Phenomenology of Particle Physics, Supersymmetry breaking, Superstring Theory, Production Process, Cross Section, Quark, Lower Bound, University of Southern California, Lepton, and Lawrence Berkeley Laboratory
We explore the sensitivities of e+e− colliders (LEP, CLIC) and hadron-hadron colliders (CERN [Formula: see text], FNAL [Formula: see text], LHC pp and SSC pp) to the indirect effects of virtual scalar particles with superstring-inspired... more
We explore the sensitivities of e+e− colliders (LEP, CLIC) and hadron-hadron colliders (CERN [Formula: see text], FNAL [Formula: see text], LHC pp and SSC pp) to the indirect effects of virtual scalar particles with superstring-inspired leptoquark and diquark couplings. We find that e+e− colliders have better sensitivities via total cross section measurements of [Formula: see text] than via asymmetry measurements, and that LEP 2 is much more sensitive than LEP 1. Hadron-hadron colliders are sensitive via lepton-pair production cross sections ( [Formula: see text]μ+μ−, τ+τ−).
Research Interests:
We study the renormalization group equations of the gauge couplings in theSU(4)×O(4)~SU(4)×SU(2)L×SU(2_R string model, derived in the context of the free fermionic formulation of the four dimensional superstring. We calculate the... more
We study the renormalization group equations of the gauge couplings in theSU(4)×O(4)~SU(4)×SU(2)L×SU(2_R string model, derived in the context of the free fermionic formulation of the four dimensional superstring. We calculate the effective string unification scale taking into account string threshold corrections and we consider the consequences of thenL andnR fractionally charged states, sitting in the (1, 2, 1) and (1,
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
The International Particle Physics Outreach Group (IPPOG) is a network of scientists, science educators and communication specialists working across the globe in informal science education and outreach for particle physics. Members... more
The International Particle Physics Outreach Group (IPPOG) is a network of scientists, science educators and communication specialists working across the globe in informal science education and outreach for particle physics. Members initiate, develop and participate in a variety of activities in classrooms, public events, festivals, exhibitions, museums, institute open days, etc. The IPPOG Resource Database was designed to provide a central location hosting written and multimedia material, tools, recipes, and other content to serve these activities. Objects in the database are categorised by language, target audience, age group, media type, and physics topics. Current efforts include porting the database to the new CERN web infrastructure and improving the interface to serve a public audience. We present our efforts to update procurement and categorisation of educational content, in addition to implementation of a redesigned user interface.
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
... Phys. B 241 (1984) 406; S. Ferrara, D. Lust, A. Shapere and S. Theisen, Phys. Lett. B 255 (1989) 363. References. ... Phys. B 241 (1984), p. 406. Abstract | PDF (979 K) | View Record in Scopus | Cited By in Scopus (73) S. Ferrara, D.... more
... Phys. B 241 (1984) 406; S. Ferrara, D. Lust, A. Shapere and S. Theisen, Phys. Lett. B 255 (1989) 363. References. ... Phys. B 241 (1984), p. 406. Abstract | PDF (979 K) | View Record in Scopus | Cited By in Scopus (73) S. Ferrara, D. Lüst, A. Shapere and S. Theisen. Phys. Lett. ...
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
We present a lowest-order calculation of the inclusive cross section for a prompt photino to be produced in association with either an ordinary QCD jet or a photon in pp collisions. If the gluino and squark masses are not too large (m... more
We present a lowest-order calculation of the inclusive cross section for a prompt photino to be produced in association with either an ordinary QCD jet or a photon in pp collisions. If the gluino and squark masses are not too large (m <~ ETtrigger), so that the supersymmetric content of the proton - controlling the subprocesses considered - is plausibly