High Energy Physics Group

Universidad de los Andes

Bogotá, Colombia

wwwprof.uniandes.edu.co/~inffisic/hep.htm

 

Summary information

(1988 – 2002)

 

People involved since 1988

N. Afanador; C. Avila, PhD; J.A. Benitez; A. Berenstein; R. Botero; I. Caballero; J.O. Castaño; H. Castro; A. Collantes, ME; J.A. Convers;  J.P. Fernández; F. García; B. Gómez, PhD; J. Gómez; R. Gómez; I.F. Gonzalez; M.F. Gonzalez; R. Gonzalez; M. Guerrero; B. Hoeneisen, PhD; J.C. Hurtado; J.F. Lizarazo; M. Loboguerrero; L.N. Granda, PhD; J. Magnin, PhD; C. Marín, MS; D. Mendoza; L.M. Mendoza; J. López; J. Millán; V. Montealegre; L.A. Montes; P. Mooney, PhD; P. Nechev, PhD; J.P. Negret, PhD; M. Nowakowski, PhD; P. Olaya; A.F. Osorio; R. Panqueva; F. Pasmay; D. Pinto; E. Pontón; O. Ramirez; MS; R. Ramirez; L.C. Reyes; J.L. Ríos; J.M.R. Roldán, PhD; D.F. Rodríguez; R. Rodríguez; A. Romero; A. Serna, PhD; J.C. Sanabria, PhD; R. Silva; P. Soto; S. Vargas; J. A. Villamil; C. Yepes; M. Zanabria, PhD.

Total: 58 people: 13 physicists at the PhD level; 5 engineers and 40 undergraduate and graduate students and research assistants.

 

Research Areas and Topics

- p-pbar elastic scattering at the Tevatron collider.

- Diffractive scattering of p and pbar at the Tevatron collider. Pomeron physics.

- p-pbar interactions at 2 TeV with the general-purpose central D0 detector.

- Heavy quark physics. Effective models. Phenomenological calculations of B hadrons.

- Muon and b quark cross sections at the Tevatron collider. Simulations and data analysis.

- B decays at the Tevatron collider. Simulations and data analysis.

- B-Bbar mixing and CP violation. Phenomenological computations.

- Experimental studies of B-Bbar mixing and CP violation at the Tevatron collider.

- Dimuon charge asymmetries at the Tevatron collider.

- Design and testing of silicon and fiber optic detectors. Physics and engineering work for the D0 detector upgrade at the Tevatron collider.

- High-speed electronics data acquisition systems. Engineering design and testing for the D0 detector upgrade.

- Hardware and software-level trigger systems at the D0 detector.

- Testing and calibration of scintillation muon detectors for the D0 upgrade.

- Solenoidal magnetic field computations at the upgraded D0 detector.

- Experimental studies of meson photoproduction of protons at Jefferson Lab.

- Experimental studies of light nuclei photoreactions at Jefferson Lab.

- Phenomenological studies of parton distributions in nucleons and other hadrons.

- Theoretical studies of long-range forces in cosmological scales.

- Theoretical studies of kaon systems applied to fundamental quantum mechanics.

- Theoretical studies in supersymmetry.

- Other topics for research by undergraduate students in Bogotá: quantum electrodynamics; quantum chromodynamics; relativistic kinematics; Monte Carlo simulations of B decays; high energy astrophysics, general relativity and cosmology; cosmic rays; detector testing with a cosmic ray beam; accelerator data analysis.

 

Publications

- 108 articles in international indexed journals, including 61 in Physical Review Letters.

- Over 3300 citations (SLAC Spires database).

- More that five dozen proceedings of international physics conferences have been published with several articles each.

- About 100 internal reports in research collaborations at Fermilab and elsewhere.

 

Highlight: "Observation of the Quark Top", D0 Collaboration, 1995. Over 800 citations.

- A listing of publications by the Group is here.

 

Material Resources

- At Uniandes, a High Energy Physics Laboratory with detectors, data acquisition, diagnostic and computing equipment. Emphasis in instrumentation with a cosmic ray test beam setup.

- Very sophisticated experimental and engineering resources available as users of Fermilab and Jefferson Lab.

- For exclusive use by the Group, over a dozen PCs at Uniandes and Fermilab for data and simulation analysis, phenomenological computation, engineering and other computational resources with high speed internet connections.

- Very powerful computational resources at Fermilab and Jefferson Lab, available to users in Bogotá through remote logins.

- At Fermilab, an office for the Uniandes Group, and a house at the Fermilab Village.

- Over 1.2 million dollars received from institutions and agencies through approved research grants and programs.

Institutions and Agencies that have given support: Universidad de los Andes (Colombia), Colciencias (Colombia), Universidad San Francisco de Quito (Ecuador), Fermilab (USA), Department of Energy (USA), National Science Foundation (USA), Jefferson Lab (USA), Michigan State University (USA), University of Texas (USA), Cornell University (USA), Centro Internacional de Física (Colombia), Instituto de Asuntos Nucleares (Colombia), Universidad Tecnológica de Pereira (Colombia), CBPF (Brasil), and other agencies in Italy, Spain and elsewhere.