Benutzer:Hedermann/Dima Bardin

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Dmitri Yurievich (Dima) Bardin (19. April 1945, Region Moskau; 30. Juni 2017, Dubna, Russia) war ein russischer Physiker, der vornehmlich auf den Gebieten der Quantenfeldtheorie und der Phaenomenologie der Elementarteilchen arbeitete.

Herkunft und Leben

I was married in 1974. My wife, Anna Bardina, was born in 1950. 2 Kinder. Bardin lebte in Dubna und in Genf.

Studium und Ausbildung

1952 - 1962: Secondary school CV: 1962 - 1968: Studies at the Moscow State University. Graduation in 1968 with honours. Graduation thesis in JINR (Dubna); supervisor: Prof. S.M. Bilenky. His teachers were S. M. Bilenky and Bruno Pontecorvo.

Tätigkeit als Wissenschaftler

1968 and started research work at JINR.

in 2004: Dzhelepov Laboratory of Nuclear Problem, Joint Institute for Nuclear Research

1968 - 1974

Work in the Laboratory of Theoretical Physics where, in 1970, I was offered a staff member position. My scientific interests were in the fields of elastic pion-electron scattering and rare pion and kaon decays. At that time I worked together with S.M. Bilenky, N.M. Shumeiko and G.V. Mitselmakher. Our results on radiative corrections for elastic pion-electron scattering were used in the data analysis of a Soviet-American collaboration which was measuring, over the years, the pion electromagnetic form factor. The results on rare decays were used for my PhD thesis, which I defended at a scientific Council of JINR in April 1974. The supervisor of my PhD thesis was Prof. S.M. Bilenky.

1974 - 1980

In 1974 I started to work independently. 1974 - 1980: After my PhD, I completely reoriented my work on the calculation of the Radia- tive Corrections (RC) to be used in modern and future experiments in high-energy physics. At that time, our group started complete calculations of the electroweak radiative corrections (EWRC) in the Standard Model (SM). This work was being performed together with O.M. Fedorenko (1951-1994) and P. Christova. We developed a self-consistent on-the-mass-shell renormalization procedure in the unitary gauge. Together with A.A. Akhundov, I started a comprehensive analysis of QED RC for deep inelastic lepton-nucleon scattering. The latter was motivated by the needs of CERN experiment NA4 (BCDMS collaboration), which was approved around that time and in which some JINR experimental groups were heavily involved.

1980 - 1984

In 1980, at the age of 35, I was for the first time allowed to go abroad on a scientific mission. It was related to the NA4 experiment. In these years, my colleagues and myself were performing a calculation of QED radiative corrections to deep inelastic scattering of charged leptons and neutrinos on nucleons and nuclei. We collaborated with several CERN experiments: BCDMS, NMC, CHARM-I, CDHSW, and later on with CHARM-II, on the elastic neutrino-electron scattering. I then worked at CERN every year for 1-2 months per year. In 1983, I began to work together with Tord Riemann, who had spent four years in JINR: from September 1983 to September 1987. During these years, we laid the foundation of our long-term collaboration, which would later be known as the Dubna-Zeuthen Radiative Correction Group (DZRCG). 1984 - 1986: During this period, I was not allowed to go abroad again. We used this ‘confinement’ to better prepare our group for a future work related to LEP1 physics. In these years, we laid the grounds of our future ZFITTER project. We continued collaboration with several experimental groups. With different groups of authors, I was rewarded in the years 1984- 1987 with the four sequential first prizes of the Joint Institute for Nuclear Research.

1987 - 1989

Those years were basically devoted to LEP1 physics. The DZRCG attended the 1989 Workshop on ”Z-Physics at LEP1”; we had published a lot of papers on Z-resonance physics. At the time of the workshop, I spent two months in the CERN Theory Division as a short-term visitor. Together with W. Hollik, B. Ward and T. Riemann, we presented at CERN a course of lectures on ”Radiative Corrections for Experimenters”. 1989 - 1991: This period saw the completion of the ZFITTER project. The DZRCG took an active part in the Workshop on ”Physics at HERA”, DESY, 1990-1991. Within this Workshop, we created the code TERAD91, which was used later for the analysis of the first data from the HERA detectors. I spent several months at DESY, Hamburg, and at the IfH, Zeuthen (currently DESY-IfH, Zeuthen). In April-May 1991, I spent two months at CERN TH again. 1991 - 1994: From August 1991, I stayed continuously at CERN during about three years. At the beginning of this period, I worked in the DELPHI experiment; then, for two months, I stayed at the University of Lyon, and from 1 September 1993 to 31 October 1994, I accepted a PA position at CERN TH.

1994 - 1996

From 1 November 1994 till December 1996 I was staying at DESY IfH, Zeuthen, as a guest scientists in the theory group of the Institute. My scientific interests in this period were in: - particle physics phenomenology; - precision tests of the SM; - EWRC and QCD RC for experiments at LEP1, LEP2, NLC, HERA, SPS and the LHC. For LEP1, in 1994-1995, I was coordinating work at CERN within the LEP1 Precision Cal- culation Working Group, together with W. Hollik and G. Passarino. This group prepared and published CERN Yellow Report 95–03 which contains an update of precision calculations of Z- resonance observables. Fifty-three scientists from eight countries had contributed to the report. After publication of this report in April 1995, the working group had completed its task and was dissolved. For LEP2 and NLC, together with A. Leike, D. Lehner and T. Riemann, a study of the four-fermion production in e + e − annihilation is being carried out. We calculated analytically the initial-state QED radiative corrections for the off-shell W + W − production in a gauge-invariant way. We performed complete analytical calculations of some four-fermion processes with all the ‘background’ contributions. Our four-fermion project was integrated into the LEP2 Workshop (1995) framework, where I was one of conveners of the working group on event generators for the SM processes. Some results of this investigation were also presented at the following Workshops: - DELPHI Workshop on LEP2, 1992; - LEPC Workshop on LEP2, November 1992; - Physics with e + e − linear collider at 500 GeV, Munich-Annecy-Hamburg, 1993. For HERA, together with A. Arbuzov, P. Christova, L. Kalinovskaya and T. Riemann, a study of radiative corrections to deep inelastic scattering is being continued. An important step of this work was completed by publishing a large review paper on this subject (DESY-94-115). Another project, named HECTOR, was completed on November 17th 1995. HECTOR com- prises the well known codes TERAD91 and HELIOS within one super-code, which is supposed to be used in HERA collaborations for an evaluation of QED, EW and QCD radiative corrections to deep inelastic scattering. In February 1996 I gave a talk about HECTOR project within on- going Workshop on Physics at HERA. Furthermore, we kept close contacts with experimenters of H1 and ZEUS on problems related to radiative corrections to deep inelastic scattering. Al- though the HECTOR version 1.00 was relased in 1995, its subsequent development was done in the year 1996. This included model-independent and quark-parton model calculations of the ra- diative corrections in new variables, both for NC and CC reactions (together with L. Kalinovskaya P. Christova and T. Riemann), enrichment of HECTOR by new options which would accumulate world experience in deep inelastic scattering, including radiative corrections for polarised DIS, (together with P. Chrisova, L. Kalinovskaya and J. Bluemlein). 2For SPC, together with L. Kalinovskaya, a study of radiative corrections for μ − e polarised scattering is being completed. On March 14th 1996, the first version of our new program μela was presented at SMC Polarimeter group meeting at CERN and transferred to the collaboration.

1996 - 1997

I worked at Torino University (Italy). Together with G. Passarino the work on the book “The Standard Model in the Making” has been started. The book was finished in 1998 and published by “Oxford University Press”.

1999 - 2000

Work within the “Precision Calculation Project” (hep-ph/9902452) — my last project for LEP1. Then I worked within 1.5 years last Workshop on LEP2 physics (CERN Yellow Report 2000–009).

1998 - till now (2004)

Work in Dzhelepov Laboratory of Nuclear Problems. Completion of work on LEP physics. In 2000, I was awarded first JINR price for papers related to ZFITTER project. In December 2000, I defended the degree of doctor of physics and in 2001 became full professor. In the year 2001 I and L.V. Kalinovskaya founded SANC group (presently counting 7 senior physicists and 6 students).

According to the QSPIRES data base, I am a co-author of about 450 publications. On the results of many of them, I held seminars at JINR (Dubna), CERN/TH and CERN/PPE, DESY (Hamburg), DESY-IfH (Zeuthen), Bielefeld University, Lyon University, Karlsruhe University, Torino University and many International Conferences and Workshops including Rochester Con- ferences and Europhysics HEP Conferences. Under my supervision, several MSc Diplomas and six PhD theses were defended. In September 1993, I lead discussion sessions at the 1993 European School of High-Energy Physics, Zakopane, Poland, and in September 1995 — at the similar school in Dubna. In 1999, I presented a course of lectures “Field Theory and The Standard Model”, published in CERN Yellow Report 2000–007. During several last years I was presenting lectures on Field Theory in the JINR University Center. I was married in 1974. My wife, Anna Bardina, was born in 1950. Present address: Dzhelepov Laboratory of Nuclear Problem Joint Instuture for Nuclear Research Joliot Curie 6; Moscow region; RU-141980 Dubna Russian Federeation

Quote from Kuzemsky's article

He was Doctor of Physical and Mathematical Sciences (Dr.Sci.) and professor at the Moscow State University. Bardin worked at the Department of Colliding Beams of the Laboratory of Nuclear Problems of the Joint Institute for Nuclear Research (JINR), Dubna, Russia. He was the scientific leader of numerous international projects and collaborations. His notable results and contributions were recognized widely by the scientific community around the world. He was internationally known for his distinguished and highly original contribution in fundamental theoretical questions and techniques in the physics of elementary particles. The approach of his ground-breaking works to the theory of quantum electrodynamics, quantum chromodynamics, physics of colliders, quantum field theory, etc. was characterized by deep and systematic treatment of the problems under consideration. He belonged to persons whose works contributed substantially to all these scientific disciplines and led to creation of the new scientific directions. Mainly involved in fundamental issues in the foundation and confirmation of Standard Model, he contributed much to the experimental justification of that Model by creating the invaluable codes for numerical modelling of the processes at highest energies. These his results penetrated at many areas of the physics of elementary particles. Many of his ideas and methods enriched the physics of elementary particles greatly and are now disseminated in hundred of publications of many authors. He was also active on the national and international scene, as chairman and editor of the numerous Conference Proceedings and as a visiting professor at many Universities and Scientific Centers, especially at CERN, Geneve. He gave numerous invited talks at conferences and workshops and at colloquia and seminars. His list of publication includes 700 items. These works have a highest Index of Citation, some of them have Index of Citation in a few thousands of References.

Dmitry Yu. Bardin graduated with honors at Moscow State University in 1968 and started research work at JINR. His teachers were S. M. Bilenky and Bruno Pontecorvo. First scientific interests of D. Yu. Bardin were devoted to elastic pion-electron scattering and rare decays of pions and kaons. The results of his calculation of radiative corrections were used in the analysis of data of the Soviet-American collaboration for the study of the electromagnetic form factor of the pion. Based on these results, in 1974 Bardin defended his Ph.D. thesis under the guidance of Professor S. M. Bilenky.

Since 1975, all the scientific work of Bardin was devoted to the phenomenology of elementary particle physics, precision physics, calculation of electroweak and QCD radiative corrections in the framework of the Standard Model for experiments at LEP1, LEP2, ILC, HERA, SPS and LHC. From 1980 to 1986 Bardin together with N. M. Shumeiko and A. A. Akhundov developed a semi-analytical formalism for the calculation of QED corrections to deep inelastic scattering of charged leptons and neutrinos on nucleons and nuclei. At the same time, in co-authorship with O. Fedorenko and P. Christova he developed the pioneering approach to renormalization in the unitary gauge, which became classical. The applications of these complete radiative corrections in the Standard Model were done in close cooperation with deep-inelastic scattering experiments at CERN: BCDMS, NMC, CHARM-I, CDHSW, and later with CHARM-II in elastic nu e scattering. Since 1979 and throughout his further scientific career, Bardin collaborated with Pena Christova from the Academy of Sciences of the Republic of Bulgaria, and since 1983 with Tord Riemann from DESY in Germany (till 1989 at the Institute for High Energy Physics of the Academy of Sciences, Zeuthen). In the nineteen eighties D. Yu. Bardin and T. Riemann laid the foundation for a long-term cooperation between JINR and the Zeuthen institute, which became known as the Dubna-Zeuthen Radiative Corrections Group -- DZRCG: D. Bardin, A. Akhundov, A. Arbuzov, M. Bilenky, P. Christova, L. Kalinovskaya, T. Riemann, J. Biebel, M. Jack, D. Lehner, A. Leike, S.~Riemann, M.~Sachwitz. Bardin's scientific activity was devoted to the physics of LEP1. The DZRCG took part in the workshop "Z Physics at LEP1`` in 1989. Together with W. Hollik, B. Ward, T. Riemann and R. Kleiss Bardin gave a course of lectures on "Radiation corrections for experimentalists" at CERN. In 1994-1995 Bardin, together with W. Hollik and G.~Passarino coordinated, in the framework of the project LEP1, the work of the Precision Calculations Working Group at CERN. This group prepared and published a report on LEP1 physics for CERN, which contains an analysis of the accuracy of calculations for the Z boson resonance. Between 1990 and 1994 Bardin created in collaboration with A. Akhundov, C. Burdik, L. Kalinovskaya, T. Riemann the code TERAD91, which later was used to analyze the data of the HERA detectors at Hamburg. At this time, Bardin worked for several months at DESY in Hamburg and Zeuthen, as well as in the Theoretical Physics Department of CERN. For three years, from 1991 to 1994, Bardin participated in the theoretical support for the DELPHI experiment at CERN. For LEP2 and NLC, together with J. Biebel, M. Bilenky, A. Leike, D. Lehner and T. Riemann, Bardin investigated four-fermion processes in e^+ e^- annihilation. They calculated QED corrections in a gauge-invariant manner for W^+ W^- and for other reactions. Dmitry Yurievich was a convener of the Working Group on Event Generators for Standard Model processes in LEP2 in 1995. In the nineteen nineties Bardin, in collaboration with C. Burdik, P. Christova and T. Riemann, calculated the complete semi-analytical electroweak corrections for deep inelastic $ ep $ scattering at HERA energies. Together with A. Arbuzov, J. Blumlein, L. Kalinovskaya, P. Christova and T. Riemann, Bardin created in 1996 the software package HECTOR -- for the calculation of deep inelastic scattering cross-sections of electrons and protons at HERA. This project includes model-independent calculations of radiative corrections in various variables for neutral and charged current scattering with unpolarized and polarized electrons. The basis of the by now famous project ZFITTER was created from 1984 to 1986. The classical results of Bardin on the realistic description of the Z peak (together with M. Bilenky, G.~Mitselmakher, T. Riemann and M. Sachwitz), on the description of electroweak one-loop corrections to the decay of the neutral vector boson (together with A. Akhundov and T. Riemann), and also the description of QED corrections in e^+ e^- annihilation (together with M. Bilenky, A. Chizhov, A. Sazonov, O. Fedorenko, T. Riemann and M. Sachwitz) formed the basis of the project ZFITTER. The ZFITTER project was one of the main codes for the LEP1 and LEP2 data analysis, and it is state of the art until now. The authors of the main version D. Bardin and A. Arbuzov, P.~Christova, M. Jack, L. Kalinovskaya, A. Olshevsky, S. Riemann, T. Riemann created a unique, creative analysis tool. The leaders of the project were D. Yu. Bardin and T. Riemann. A huge, invaluable, painstaking work of support, both in physics and in programming lay on the shoulders of the ZFITTER authors for more than 25 years. Together with P. Christova and L. Kalinovskaya, Bardin actively participated in the work of two LEP2MC Workshops. The theoretical support for predicting the mass of the top quark and the mass of the Higgs boson was done using ZFITTER . In Peter Higgs' Nobel lecture of 2013 a world data fit was shown, the blue band plot``. Its theoretical prediction of the mass of the Higgs boson relies on ZFITTER. So far ZFITTER is a basic software of the ATLAS and CMS collaborations for Z boson production. Bardin made a decisive contribution to the development of techniques for calculating complete electroweak radiative corrections in the framework of the Standard Model. In 1999, together with G. Passarino, D. Yu. Bardin published the fundamental monograph: ``The Standard Model in the Making, Precision Study of the Electroweak Interactions (Clarendon Press, Oxford, 1999), which became a classic textbook on the technique of calculating single-loop radiative corrections and their extensive analysis. Since 2000 D. Yu. Bardin, in collaboration with P. Christova, C. Bondarenko, L. Kalinovskaya, A. Arbuzov, A. Andonov, G. Nanawa, V. Kolesnikov, R. Sadykov, L. Rumyantsev, A. Sapronov and E. Uglov, was creating the software system SANC for calculations of QCD and electroweak radiative corrections in the framework of the Standard Model. The results of the MC integrator MCSANC are actively used in the ATLAS collaboration at the LHC. Particularly successful is here the cooperation with S. Jadach , Z. Was, W. Placzek, M. Klein. Under the guidance of Bardin several by now classical software packages were created and are used until today: ZFITTER - a powerful package for data analysis LEP and LHC; muela - a package for theoretical support of experiments on elastic polarized $ \mu e $ scattering, GENTLE - a package for 4-fermion background to the signal processes W^+W^-, ZZ and ZH for the LEP2 data analysis. Based on his vast experience Professor D. Yu. Bardin developed a course of lectures for students at the Lomonosov Moscow State University on ``Standard Theory and Precision Calculations". From 2009 Bardin was professor at the Moscow State University and experienced great respect from colleagues and students. Under the guidance of Dmitry Yu. Bardin 12 Ph.D. theses were defended. Dmitry Yu. Bardin is on the list of the Top 100 most cited Russian scientists according to the RINC. According to the database INSPIRE D. Yu. Bardin is co-author of more than 700 scientific publications. He presented his work at numerous seminars at JINR, CERN/TH, CERN/PPE, DESY, IfH, Universities of Bielefeld, Lyon, Karlsruhe, and acted at numerous world-class conferences like ACAT, CALC, RADCOR, Loops and Legs. He gave main lectures at several schools jointly organized by CERN and JINR. Groups headed by Dmitry Bardin were awarded six times with the prestigeous First Research Prize of the Joint Institute for Nuclear Research. It is difficult to count here all the scientists with whom Dmitry Bardin actively collaborated. Let us name besides those mentioned Bruno Pontecorvo, Samuel Bilenky, Barbara Badelek, Konstantin Chetyrkin, Ansgar Denner, Stefan Dittmaier, Valya Dokuchaeva, Fred Jegerlehner, Martin Grunewald, Andrei Kataev, Johann Kuhn, Bernd Kniehl, Wolfgang Friedrich Lohmann, Lew Okun, Dorothee Schaile, Dmitri Shirkov, Alberto Sirlin, Hubert Spiesberger, Oleg Tarasov and others.

Bardin has authored or co-authored about 700 publications on physics of elementary particles and Standard model.

Wichtige Quellen

BARDINCV2004

Obituary CERN Courier: /home/tord/link-latex/2019-obituaries/bardin-dima/Obituaries – CERN Courier.html https://cerncourier.com/wp-content/uploads/2019/04/CERNCourier2017Nov-digitaledition.pdf

https://ru.wikipedia.org/wiki/%D0%91%D0%B0%D1%80%D0%B4%D0%B8%D0%BD,_%D0%94%D0%BC%D0%B8%D1%82%D1%80%D0%B8%D0%B9_%D0%AE%D1%80%D1%8C%D0%B5%D0%B2%D0%B8%D1%87

http://theor.jinr.ru/~kuzemsky/bardinbio.html (2017)

http://theor.jinr.ru/~kuzemsky/BIOGRAPHY_Dmitry_BARDIN.pdf

Einzelnachweise

Kategorie:Autor Kategorie:Literatur (20. Jahrhundert) Kategorie:Literatur (Deutsch) Kategorie:Erzählung Kategorie:Lehrer Kategorie:Person (Wiesbaden) Kategorie:Deutscher Kategorie:Geboren 1952 Kategorie:Frau