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| Leader: | Z. Tsamalaidze |
Participating countries and international organizations:
Belarus, Czech Republic, Georgia, Germany, France, Kazakhstan, Russia, United Kingdom, Japan.
Issues addressed and main goals of research:
The goal of the COMET experiment at the J-PARC accelerator is the search for the neutrinoless muon-electron conversion µ - N
e - N, in which the lepton number in the charged sector does not conserve. Within the SM modified with allowance for the neutrino oscillations, the expected rate is less than 10 -50, and therefore any observation of the conversion would be a clear signal of new physics beyond the SM. Conversion measurement at the level of 10 -17, which is the COMET goal, is a factor of 10000 better than the current experimental limit B(µ -+ Auµ e - + Au) < 7·10 -13 from SINDRUM-II at PSI.Expected results in the current year:
- R&D of thin-wall straw tubes for COMET. Development, production and tests of the straw detector and electromagnetic calorimeter prototype.
- Calibration of LYSO crystals.
| List of Activities | |||||
| Activity or Experiment | Leaders | ||||
| Laboratory or other Division of JINR Responsible person |
Main researchers | ||||
| 1. | Experiment COMET | Z. Tsamalaidze |
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| DLNP | K. Abylay, V.N. Duginov, P.G. Evtukhovich, I.L. Evtukhovich, K.I. Gritsai, V.A. Kalinnikov, Kh. Khubashvili, E.S. Kaneva, M.D. Kravchenko, A.S. Moiseenko, A.V. Pavlov, B.M. Sabirov, A.G. Samartsev, N. Tsverava, E.P. Velicheva, A.D. Volkov | ||||
| LIT | G. Adamov, D. Goderidze, Yu.L. Kalinovsky, A. Khvedelidze | ||||
| BLTP | D. Aznabaev, A. Issadykov, G.A. Kozlov | ||||
| VBLHEP | D. Baigarashev, V.V. Elsha, T.L. Enik, S.A. Movchan, S.N. Shkarovsky | ||||
| Collaboration | |||
| Country or International Organization |
City | Institute or Laboratory | |
| Belarus | Minsk | BSU | |
| IP NASB | |||
| Czech Republic | Prague | CU | |
| France | Paris | IN2P3 | |
| Georgia | Tbilisi | GTU | |
| HEPI-TSU | |||
| UG | |||
| Germany | Dresden | TU Dresden | |
| Japan | Fukuoka | Kyushu Univ. | |
| Osaka | Osaka Univ. | ||
| Tsukuba | KEK | ||
| Kazakhstan | Almaty | INP | |
| Russia | Moscow | ITEP | |
| NNRU "MEPhI" | |||
| Novosibirsk | BINP SB RAS | ||
| NSU | |||
| United Kingdom | London | Imperial College | |
| Didcot | RAL |
