Home Page of Juan Pablo Negret

Experience in scientific research since 1973. In experimental high energy physics since 1977, having participated in several experimental projects with colleagues from the United States, Europe, Asia and Latin America at the Fermilab and Brookhaven accelerators and the HPW underground experiment. Author or co-author of 96 articles published in leading physics journals, and a total of twelve dozen scientific writings, with over 3300 citations. Since 1991 with the D0 Collaboration at Fermilab, where the top quark was discovered in 1995. Has participated in a dozen research projects approved by financing agencies in the United States and Colombia. In 1994 the government of Colombia chose him as one of the leading physics researchers in the country.

Working since 1989 at the Department of Physics of Universidad de los Andes (Uniandes) in Bogotá, Colombia, where he is a Full Professor and where he has been a leader of the High Energy Physics Group. This group is the pioneering group in the Andean Region and one of the most important in Latin America, at present, with the participation of ten PhD physicists from Colombia and elsewhere. The activities of the group under his coordination received support from Uniandes, Colciencias (the Colombian Government Science Funding Agency), Fermilab and NSF, among others, at the level of one million dollars. As a recognition to the labor of the Group, Fermilab permanently displays the Colombian flag in front of its main building. He is one of the principal Colombian investigators with the D0 Collaboration at Fermilab, where he works since 1991, in areas of hardware, software and physics analysis, in particular the physics of the b quark. D0 is a large general-purpose proton-antiproton collider detector, with Harry Weerts (Michigan State University) and John Womersley (Fermilab) as spokespersons.

Between 1986 and 1992 he participated in the E710 collider experiment at Fermilab, studying elastic, diffractive scattering and the pbar-p total cross section. This experiment had Jay Orear (Cornell) and Roy Rubinstein (Fermilab) as spokespersons. He worked on this experiment as a Uniandes professor (1989 - 1992) and as a postdoc with the Physics Department at Fermilab (1986 - 1988), in areas of hardware (installation and calibration of roman pot drift chambers), software (data acquisition and calibration) and physics analysis, in particular elastic and diffractive analysis.

As a PhD student at Purdue University, between 1980 and 1986 he participated in the HPW underground detector, with Carlo Rubbia (Harvard), James Gaidos (Purdue) and David Cline (Wisconsin) as spokespersons. This large water Cherenkov detector was an experiment that searched for proton decay and did cosmic ray physics and astrophysics. He worked on hardware and software (detector development, testing, calibration and data acquisition) and physics analysis, in particular atmospheric neutrinos.

TEACHING AND OTHER ACTIVITIES

Teaching experience since 1970, at Universidad del Cauca (1970 - 1975), University of Illinois (1976 - 1978), Purdue University (1979 - 1986) and Universidad de los Andes (1989 - present). Has taught or assisted in teaching many courses and laboratories for engineering and science students and for undergraduate and graduate physics students. Author of several writings, including a textbook in photography. Has developed new curriculum and was one of the leading designers of a physics PhD program at Uniandes. He introduced in Colombian material developed at Fermilab for the teaching of topics of modern physics at the high school level.

Has worked as coordinator of high energy physics programs at the Centro Internacional de Física (CIF) in Bogotá, Colombia, where he also was President of the Association pro-CIF. At Uniandes he has held several administrative responsibilities, including Coordinator of the High Energy Physics Group, and has been member of several academic counseling bodies at Uniandes and elsewhere.

SELECTED SCIENTIFIC ARTICLES

"Search for Charged Higgs Bosons in Decays of Top Quark Pairs", (D0 Collaboration), Physical Review Letters, 82:4975-4980 (1999, USA).

"The Inclusive Jet Cross Section in pbar-p Collisions at sqrt s = 1.8 TeV", (D0 Collaboration), Physical Review Letters, 82:2451-2456 (1999, USA).

"A Measurement of the W Boson Mass", (D0 Collaboration), Physical Review Letters, 80:3008 (1998, USA).

"Limits on WWZ and WW Gamma Couplings from p-pbar -> e + Neutrino + Jet + Jet + X Events at sqrt s = 1.8 TeV", D0 Collaboration, Physical Review Letters, 79:1441-1446 (1997, USA).

"Search for Diphoton Events with Large Missing Transverse Energy in pbar-p Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 78:2070-2074 (1997, USA).

"J/Psi Production in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physics Letters B, 370:239-248 (1996, Europe).

"Search for Light Top Squarks in p-pbar Collisions at sqrt s = 1.8 TeV"", D0 Collaboration. Physical Review Letters, 76:2222-2227 (1996, USA).

"Search for Right-Handed W Bosons and Heavy W-prime in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 76:3271-3276 (1996, USA).

"Jet Production via Strongly-Interacting Color-Singlet Exchange in pbar-p Collisions", D0 Collaboration. Physical Review Letters, 74:734-739 (1996, USA).

"W and Z Boson Production in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 75:1456-1461 (1995, USA).

"Search for Squarks and Gluinos in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 75:618-623 (1995, USA).

"Observation of the Top Quark", D0 Collaboration. Physical Review Letters, 74:2632-2637 (1995, USA

"Inclusive Mu and b-Quark Production Cross-Sections in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 74:3548-3552 (1995, USA).

"A Search for Jet Events with Rapidity Gaps in p-pbar Collisions at sqrt s = 1.8 TeV", D0 Collaboration. Physical Review Letters, 72:2332-2336 (1994, USA).

"Diffraction Dissociation in pbar-p Collisions at sqrt s = 1.8 TeV", E710 Collaboration. Physics Letters B, vol. 301, 313 (1993, Europe).

"Measurement of rho, the Ratio of the Real to Imaginary Part of the pbar-p Forward Elastic Scattering Amplitude, at sqrt s=1.8 TeV", E710 Collaboration. Physical Review Letters, 68:2432-2436 (1992, USA).

"A Luminosity-Independent Measurement of the pbar-p Total Cross Section at sqrt s=1.8 TeV" E710 Collaboration. Physics Letters B. vol. 243, no. 1,2, p. 158 (1990, Europe).

"A Search for Nucleon Decay with Multiple Muon Decays", HPW Collaboration. Physics Letters B, vol. 224, no. 3, p. 348, (1989, Europe).

Link to a detailed vita (in Spanish) is HERE.

Link to a personal page (in Spanish) is HERE.