Title: Colliding beam physics at Budker Institute of Nuclear Physics, Novosibirsk.

Speaker: Dr. Dmitry Grigoriev

Time: May 12, 14:00, 2014

Place: Room B 326

Chair: Hai-Bo LI

Abstract：

Budker Institute of Nuclear Physics (BINP) is the cradle of the colliding beams. The founder of the Institute, G.I. Budker, developed the conception of the colliders. The first collider in the world had been built at BINP. It was electron-electron machine VEP-1. The first circulated beam was obtained at 20th of August 1963. The first collision happened at 19th of May 1964. The next collider, VEPP-2, was first electron –positron machine with sufficient luminosity to study production of hadrons.

The VEPP-2M collider was a most efficient electron-positron machine in energy range from hadron production threshold till 1.4 GeV in CM. Only in small region around the phi-meson peak DAFNE has higher luminosity. Recently the new collider, VEPP-2000, starts operation. It is based on novel technic of round beams which was developed in BINP. The energy range is from hadron production threshold till 2 GeV in CM. The CMD-3 and SND detectors start data taking at 2010.

In this talk the VEPP-2000, detectors and physics will be presented. Also the perspectives of the colliding beam physics at BINP will be discussed.

About the speaker：

Dr. Dmitry Grigoriev graduated Novosibirsk State University in 1996. He works at Budker Institute of Nuclear Physics from this time. At first he joined calorimeter group of the CMD-2 detector and got his PhD on BGO endcap calorimeter. Then he became one of the active members of the CMD-3 collaboration. In this detector D. Grigoriev took responsibility for the endcap calorimeter and integration with the VEPP-2000 collider. The other field of his interest is the precision muon experiments. D. Grigorev participates in (g-2) experiment at BNL and MEG experiment at PSI from very beginning. Now he is an active member of MEG-2 and COMET collaborations.