تقرير
Search for muon catalyzed $d^3He$ fusion
| العنوان: | Search for muon catalyzed $d^3He$ fusion |
|---|---|
| المؤلفون: | Fotev, V. D., Ganzha, V. A., Ivshin, K. A., Kravchenko, P. V., Kravtsov, P. A., Maev, E. M., Nadtochy, A. V., Solovev, A. N., Solovyev, I. N., Vasilyev, A. A., Vorobyov, A. A., Voropaev, N. I., Vznuzdaev, M. E., Kammel, P., Muldoon, E. T., Ryan, R. A., Salvat, D. J., Prindle, D., Hildebrandt, M., Lauss, B., Petitjean, C., Gorringe, T., Carey, R. M., Gray, F. E. |
| سنة النشر: | 2020 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | This report presents the results of an experiment aimed at observation of the muon catalyzed $^3\!He\;d$ fusion reaction $^3\!He + \mu\;d\to^3\!He\;\mu\;d\to^4\!He(3.66MeV)+p(14.64MeV)+\mu$ which might occur after a negative muon stop in the $D_2+^3\!He$ gas mixture. The basic element of the experimental setup is a Time Projection Chamber (TPC) which can detect the incoming muons and the products of the fusion reaction. The TPC operated with the $D_2 + ^3\~He (5%)$ gas mixture at $31K$ temperature. About $10^8$ $^3\!He\;\mu\;d$ molecules were produced with only 2 registered candidates for the muon catalyzed $^3\!He\;d$ fusion with the expected background $N_{bg}=2.2\pm 0.3$ events. This gives an upper limit for the probability of the fusion decay of the $^3\!He\;\mu\;d$ molecule $P_{F}(^3\!He\;\mu\;d)\leq 1.1\cdot 10^{-7}$ at 90% C.L. Also presented are the measured formation rate of the $^3\!He\;\mu\;d$ molecule $\lambda_{d3He}=192(3)\cdot 10^6 s^{-1}$ and the probability of the fast muon transfer from the excited to the ground state of the $\mu\;d$ atom $q_{1S}=0.80(3)$. Comment: 13 pages, 8 figures |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2001.09927Test |
| رقم الانضمام: | edsarx.2001.09927 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |