Sergey Levonian

A member of the Collaboration

I can be found at one of the following sites:

DESY, Hamburg
P.N. Lebedev Physical Institute, Moscow

Location	DESY (1c-EG.311)	Moscow
	DESY, Notkestr. 85, 22607 Hamburg, GERMANY	HEP Department, LPI R.A.S., Leninsky pr.53, 117924 Moscow, RUSSIA
	levonian@mail.desy.de	Retired as of July 2018
	+49 40 8998 3767	+7 499 132-61-68
	+49 40 8998 3093	+7 495 938-22-51

Selection of research topics

Physics of particle accelerators
Experiments on 2m bubble chamber "Ludmila" (Dubna-Serpukhov)
H1 Experiment at HERA
HERA-III project
LHeC project (Until 2014; Since 2015)
Physics at the Terascale
Belle II

Fields of interst & activity in H1

luminosity measurements
photoproduction physics
diffraction
L4 trigger (Farm)
General H1 software
H1 publications: editor of 8 and referee of 14 papers.
Major talks
- H1 Detector. Status report. 30^th session of PRC meeting at DESY, Hamburg, October 8, 1991.
- Total Photoproduction Cross Section Measurement at HERA. Proceedings of the Workshop "Physics at HERA", Hamburg, 29-30 Oct, 1991.
- Luminosity Measurements with H1 Luminosity Monitor. Bad Lautenberg, Feb 1992, DESY-HERA-92-07 (1992) 247-270.
- First results on photoproduction at HERA. Fest-Kolloquium "Start-up of the Experimental Program at HERA", DESY, Hamburg, October 1, 1992.
- Low and Medium p_T Photoproduction at HERA. 28^th Rencontres de Moriond, Les Arcs, France, 20-27 March, 1993 (writeup)
- Rapidity Gap Physics at H1. Talk given at Mini-school "Diffraction at HERA", DESY, May 5, 1994
- Hard scattering in diffractive dissociation of quasi-real photons at HERA. Invited talk at the workshop "Two-Photon Physics at LEP and HERA", Lund, Sweeden, May 26-28, 1994.
- Rapidity Gap Physics at HERA. Talk at the HEP Kolloquium of Heidelberg University, May 31, 1994.
- Physics at HERA. Invited talk at the International Conference on 50-th anniversary of the Phase Stability Principle, Dubna-Moscow, Russia, July 12-15, 1994.
- Recent results in QCD at HERA. Talk on the HEP seminar in Ecole Polytechnique, Paris, France, November 14, 1994.
- Rapidity Gaps in Photoproduction. Topical Conference on Hard Diffractive Processes, Eilat, Israel, February 18-23, 1996.
- Soft Interactions and Diffractive Phenomena. Plenary talk on the 28-th ICHEP, Warsaw, Poland, July 25-31, 1996.
- a) Introduction to gamma-p physics; b) Outlook. H1-OPAL discussion "gamma-p meets gamma-gamma", CERN, Geneva, January 19-20, 1998.
- From Soft to Hard Diffraction. Plenary talk on the LISHEP 98 Workshop on Diffractive Physics, Rio-de-Janeiro, Brasil, February 16-20, 1998.
- Total and Diffractive Cross Sections in Photon-Proton Collisions at HERA. Workshop "Pomeron and Odderon in Theory and Experiment", Heidelberg, Germany, March 19-21, 1998.
- Hard Diffraction. Plenary talk on PIC-99 Conference, Ann Arbor, Michigan, USA, June 24-26, 1999.
- HERA at the turn of the Millenium. 48^th session of the Extended Scientific Council, DESY, Hamburg, October 28, 1999.
- Structure Functions at low x and low Q2 from HERA. CIPANP-2000, Quebec, Canada, May 22-28, 2000.
- Diffractive Physics at HERA. CIPANP-2000, Quebec, Canada, May 22-28, 2000.
- F₂ at low Q² and total gamma-p cross section ICHEP-2000, Osaka, Japan, July 27 - August 2, 2000 (writeup)
- Pomeron under the HERA microscope ISMD-2000, Tihany, Hungary, October 9-15, 2000.
- HERA-III QCD-N'02, Ferrara, Italy, April 3-6, 2002.
- Understanding p-induced background HERA backgrownd review meeting, DESY, Hamburg, January 16, 2003.
- Diffractive structure functions and QCD fits New Trends in HERA Physics, Ringberg, Germany, Sep.28-Oct.3, 2003 (writeup)
- Recent results from H1 at HERA XVIII Int. Workshop QFTHEP, Peterhof, Russia, June 17-23, 2004.
- Inclusive Photoproduction of Mesons and Anti-Deuterons at HERA 32nd ICHEP, Beijing, China, August 16-22, 2004.
- Factorisation and factorisation breaking in diffraction at HERA ISMD-2005, Kromeriz, Czech Republic, August 9-15, 2005.
- H1 measurements on F2D(3) and F2D(4) and diffractive PDF Low-x Workshop, Lisbon, Portugal, June 28 - July 1, 2006.
- Azimuthal asymmetries, Subjets and Event shapes in DIS at HERA 33rd ICHEP, Moscow, Russia, July 27 - August 2, 2006.
- Hard photoproduction at HERA Workshop on Photoproduction at collider energies: from RHIC and HERA to LHC, ECT* - Trento, Italy, January 15-19, 2007.
- Jet Production at low Bjorken-x from HERA 3rd International Conference on Hard and Electro-Magnetic Probes of High-Energy Nuclear Collisions, Illa da Toxa, Galicia, Spain, June 8-14, 2008.
- Search for new physics at HERA using combined H1 and ZEUS data 45^th Rencontres de Moriond, La Thuile, Italy, 13-20 March, 2010 (writeup)
- Luminosity Measurement at the LHeC XVIII International Workshop DIS 2010, Firenze, Italy, 19-23 April, 2010.
- Luminosity Measurement and e-tagging at the LHeC. 3rd CERN-ECFA-NuPECC Workshop on the LHeC, Chavannes-de-Bogis, Switzerland, 12-13 November, 2010.
- Draft of the Luminosity chapter for the LHeC CDR (28-June-2011).
- Recent results from HERA Collider. 15-th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, August 18-24, 2011 (writeup)
- Physics at HERA Collider. Part II New Trends in High Energy Physics, Alushta, Ukraine, September 3-10, 2011.
- Isolated photons production at HERA Low-x Workshop, Paphos, Cyprus, June 27 - July 1, 2012.
- The legacy of HERA. (short version) Invited talk at the Symposium in honor of Robert Roosen. VUB, Brussel, October 19, 2012.
- The legacy of HERA. (long version) Invited lecture in the Institute of Physics of Czech Academy of Sciences. Prague, February 12, 2013.
- Recent H1 results on Diffraction. EPS-2013, Stockholm, Sweeden, July 18-24, 2013. (writeup)
- Inclusive DIS at high Q² at HERA. New Trends in High Energy Physics, Alushta, Ukraine, September 23-29, 2013. (writeup)
- Exclusive Photoproduction of ρ⁰ Meson with Leading Neutron at HERA. XXII International Workshop DIS14, Warsaw, Poland, 28 April - 2 May, 2014. (writeup)
- Recent HERA Results with very Forward Neutrons and Photons. International Workshop on Diffraction in High-Energy Physics, Primosten, Croatia, 10-16 September, 2014.
- Diffraction and Forward Physics at HERA. International Wilhelm and Else Heraeus Physics School, Bad Honnef, Germany, 17-21 August, 2015.
- Diffractive Dijet Production in ep Collisions at HERA. Low-x Meeting 2015, Sandomierz, Poland, 1-5 September, 2015.
- Exclusive ρ⁰ Meson Photoproduction with a Leading Neutron at HERA. Low-x Meeting 2015, Sandomierz, Poland, 1-5 September, 2015.
- Discussion session on VM at Low-x Meeting 2015.
- Exclusive ρ⁰ Meson Photoproduction with a Leading Neutron at HERA. XXIV International Workshop DIS16, DESY, Hamburg, 11-15 April, 2016. (writeup)
- New HERA Results on Diffraction. 19-th International Conference on QCD, Montpellier, France, 4-8 July, 2016. (writeup)
- Recent Results on Diffraction at HERA. 18-th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, August 24-30, 2017 (writeup)
- Exclusive ρ⁰ and ρ' Photoproduction at HERA. Diffraction and Low-x 2018, Reggio Calabria, Italy, 26 August - 1 September, 2018.
- Diffractive Vector Meson production at HERA. CFNS workshop "Open Questions in Photon-Induced Interactions", USA (online), 26-28 April, 2021.
- Measurement of exclusive π⁺π^- and ρ⁰ meson photoproduction at HERA. 12^th workshop on MPI at the LHC, Lisbon, Portugal 11-25 October, 2021.
- Diffractive Vector Meson production at HERA. Experimental summary CFNS workshop "Hera 4 EIC", USA (online), 8-10 June, 2022.
H1 software:
- Preservation through modernisation: The software of the H1 experiment at HERA (D.Britzger et al)
- Introduction to the general H1 s/w and data structure
- H1 Detector Simulation (lecture for H1 students)
- gen/sim/rec for LUMI system (see e.g. H1-04/93-287)
- graphics
  - H1 Event Display(1989-1994)
  - LOOK (1990-1995)
upgrade programs
- extention of the tagging acceptance: H1-09/94-383)
- lumi upgrade 2000: DESY PRC 98/05
- HERA-3 project (2002-2003): home page with further links

DESY Open Day (7-Nov-2015)

Last update: 10.06.2022