Double Beta decays and Related Subjexts by Ultra Rare-process Nuclear Spectroscopy

1.双测试版和中性（1）中性双测试版的中性双测试版年份^<100>Mo已经对研究中性的基本性质和电子弱标准模型在电子V探测器中的有效性进行了测量。（2）双测试版的日期与两个中性的^<100>Mo和^<116>Cd在研究中，两个核核人都被观察到了一半。（3）新类型的漂移室，是因为它们非常敏感地从永久放射活性剂发射了Alpha粒子，并已安装在ElegANTS V探测器中。搜索暗物质的新粒子的暗物质已被搜索为以ELGANTS V探测器中的总质量为0.76吨的大NaI。Nai探测器被发现对自旋耦合的黑暗物质样本非常敏感。粒子和核物理学保护法测试电子稳定性和核核稳定性已经通过使用NaI检测器本身在ELEGANTS V检测器中进行了检查。These stabilities give the highest upperlimits of charge nonconserving decay of electron， breakings of Pauli principle， and mode independent nucleon decays。超稀有核反应ElegANTS III探测器和中子散射器表示，在房间温度下对稀有中子事件进行非常敏感的搜索，如d-d fusion。观察到的融合率为&lt;1.6·10^&lt;-24&gt; （ddn）融合/（dd）对/第5节。MeteoritesGamma射线中的放射性活动来自MeteoritesGamma射线中的放射性活动是由ELEGANTS III探测器的平均值测量的。Concentration of ^<26>Al in large meteorites with total mass of several hundred gram can be measured nondestructively in an order of dpm/kg。

1. Double beta decays and neutrino(1) Neutrinoless Double beta decays of ^<100>Mo have been measured for studying fundamental properties of neutrino and the validity of electro-weak standard model means of ELEGANT V detector. (2) Double beta decays with two neutrino of ^<100>Mo and ^<116>Cd were studied and the finite half lives for both nuclei were observed. (3) New type drift chambers, which are very sensitive to alpha particles emitted from residual radioactivities, have been installed in the ELEGANTS V detector.2. Search for dark matterNew particles of dark matter candidates have been searched by means of large NaI with the total mass of 0.76ton in ELEGANTS V detector. NaI detector was found to be very sensitive to spin-coupled dark matter candidates.3. Test of Conservation Laws of Particle and Nuclear PhysicsElectron stability and nucleon stability have been checked by using the electron and nucleon in NaI detector itself in ELEGANTS V detector. These stabilities give one of the highest upperlimits of charge nonconserving decay of electron, breakings of Pauli principle, and mode independent nucleon decays.4. Ultra-rare Nuclear reactionsELEGANTS IIIs detector with neutron scatterer was shown to be very sensitive in the search for rare neutron events such as d-d fusion at room temperature. The observed fusion rate was obtained as <1.6・10^<-24> (ddn) fusions/(dd)pair/sec.5. Radioactivity in MeteoritesGamma rays from radioactivities in meteorites were measured by means of ELEGANTS IIIs detector. Concentration of ^<26>Al in large meteorites with total mass of several hundred gram can be measured nondestructively in an order of dpm/kg.