To contents
Theoretical Physics
01-3-1135-2019/2023
01-3-1136-2019/2023
01-3-1137-2019/2023
01-3-1138-2019/2023
01-3-1117-2014/2023
Elementary Particle Physics
02-2-1123-2015/2022
    02-2-1123 - RUS
02-0-1081-2009/2024
02-2-1144-2021/2023
02-2-1099-2010/2023
02-0-1108-2011/2021
02-2-1125-2015/2023
02-1-1106-2011/2022
02-1-1096-2010/2022
02-0-1083-2009/2022
02-0-1085-2009/2022
02-1-1086-2009/2023
02-0-1065-2007/2023
02-0-1127-2016/2023
02-1-1097-2010/2021
02-1-1087-2009/2023
02-0-1066-2007/2023
02-1-1088-2009/2022
02-1-1107-2011/2021
Nuclear Physics
03-0-1129-2017/2021
03-5-1130-2017/2021
03-2-1100-2010/2021
03-4-1128-2017/2022
Condensed Matter Physics
04-4-1142-2021/2025
04-4-1105-2011/2022
04-4-1143-2021/2025
04-4-1133-2018/2023
04-4-1140-2020/2022
04-4-1141-2020/2022
04-5-1131-2017/2021
04-9-1077-2009/2023
04-9-1112-2013/2022
04-2-1132-2017/2022
04-2-1126-2015/2023
Networking, Computing
05-6-1118-2014/2023
05-6-1119-2014/2023
05-8-1037-2001/2024
Educational Programme
06-0-1139-2019/2023

02-2-1123-2015/2022

 

Priority:

1

 

 

Status:

In-progress


Study of Fundamental Interactions in  e   + e   -  Collisions

Leader:

A.S. Zhemchugov

Deputy:   

A.V. Guskov


Participating countries and international organizations:

CERN, China, Germany, Poland, Russia, Sweden.


Issues addressed and main goals of research:

The Standard Model (SM) provides the most accurate and universal description of the physics phenomena on a microscale nowadays. However, it is not free from a number of shortcomings. Some predictions of the Standard Model still have not been observed experimentally. In many cases the accuracy of the predictions is limited by the experimental knowledge of the key free parameters of the theory. At the same time, the search for New Physics beyond the Standard Model may show the way to further develop the theory and to get rid of its shortcomings. The main tool for these studies is the collider experiments using both proton-proton (LHC) and electron-positron collisions. The latter are most suitable for the precision studies of elementary particles with obvious advantages from well-defined kinematics of the initial state and the absence of the large QCD background typical of hadronic colliders.

Precision test of SM predictions and search for new phenomena beyond the SM in charmonium and tau lepton decays are fulfilled in the scope of this theme using the world best facility in this energy domain - the unique electron-positron collider BEPC-II and the BES-III detector. At the same time, preparation for experiments at the future electron-positron colliders (ILC, CLIC, CEPC, FCC-ee) is under way.


Expected results in the current year:

  • BES-III data analysis.

  • Development of offline software and analysis tools.

  • Development of a multipurpose MC event generator to describe the main processes of e +e - annihilation including radiative corrections at a level of more than one loop. The generator will take into account the particle polarization for both initial and final states.

  • Development of standard program codes to calculate radiation corrections at a level of 2 (for EW interactions) and 3 (for strong interactions) loops.

  • Study of the research potential of the experiments at the CLIC collider in the domain of precision measurements and search for new physics on the basis of full detector simulation.

List of projects:


 

Project

Leader

Priority
(period of realisation)

1.

BES-III

A.S. Zhemchugov

2   (2007-2022)



2.

ARIeL

L.Y. Kalinovskaya

3   (2019-2021)




List of Activities:


 

Activity or Experiment

Leaders

Status

 

    Laboratory or other
    Division of JINR
Responsible person

Main researchers

1.

BES-III Project

A.S. Zhemchugov

Realization



 

DLNP

O.V. Bakina, I.R. Boyko, D.V. Dedovich, I.I. Denisenko, A.V. Guskov, Yu.A. Nefedov, G.A. Shelkov



 

BLTP

V.V. Bytev



 

LIT

V.V. Korenkov, G.A. Ososkov, I.S. Pelevanyuk



2.

ARIeL Project

L.V. Kalinovskaya

Realization



 

DLNP

I.R. Boyko, E.V. Dydyshko, Yu.A. Nefedov, N.E. Pukhaeva, L.A. Rumyantsev, A. Rymbekova, A.A. Sapronov, R.R. Sadykov, P.V. Shvydkin, A.S. Zhemchugov, V. Yermolchyk, Yu. Yermolchyk



 

BLTP

A.B. Arbuzov, C.G. Bondarenko



 

LIT

I.S. Pelevanyuk


Collaboration

Country or International Organization

City

Institute or laboratory

Belarus

Minsk

INP BSU

CERN

Geneva

CERN

China

Beijing

IHEP CAS

Germany

Hamburg

DESY

 

Hannover

LUH

Poland

Katowice

US

 

Krakow

INP PAS

Russia

Gatchina

NRC KI PNPI

 

Novosibirsk

BINP SB RAS

Sweden

Lund

LU