تقرير
Search for neutrinoless quadruple beta decay of $^{136}$Xe in XMASS-I
| العنوان: | Search for neutrinoless quadruple beta decay of $^{136}$Xe in XMASS-I |
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| المؤلفون: | XMASS Collaboration, Abe, K., Hiraide, K., Ichimura, K., Kato, N., Kishimoto, Y., Kobayashi, K., Kobayashi, M., Moriyama, S., Nakahata, M., Sato, K., Sekiya, H., Suzuki, T., Takeda, A., Tasaka, S., Yamashita, M., Yang, B. S., Kim, N. Y., Kim, Y. D., Kim, Y. H., Ishii, R., Itow, Y., Kanzawa, K., Masuda, K., Martens, K., Mason, A., Suzuki, Y., Miuchi, K., Takeuchi, Y., Lee, K. B., Lee, M. K., Fukuda, Y., Ogawa, H., Nishijima, K., Fushimi, K., Xu, B. D., Nakamura, S. |
| المصدر: | Physics Letters B 833 (2022) 137355 |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Experiment Nuclear Experiment Physics (Other) |
| مصطلحات موضوعية: | Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors |
| الوصف: | A search for the neutrinoless quadruple beta decay of $^{136}$Xe was conducted with the liquid-xenon detector XMASS-I using $\rm 327\; kg \times 800.0 \; days$ of the exposure. The pulse shape discrimination based on the scintillation decay time constant which distinguishes $\gamma$-rays including the signal and $\beta$-rays was used to enhance the search sensitivity. No significant signal excess was observed from the energy spectrum fitting with precise background evaluation, and we set a lower limit of the half life of 3.7 $\times$ 10$^{24}$ years at 90$\%$ confidence level. This is the first experimental constraint of the neutrinoless quadruple beta decay of $^{136}$Xe. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2022.137355 |
| URL الوصول: | http://arxiv.org/abs/2205.05231 |
| رقم الأكسشن: | edsarx.2205.05231 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2022.137355 |
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