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In particle physics, proton decay is a hypothetical form of particle decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron. [1] The proton decay hypothesis was first formulated by Andrei Sakharov in 1967. Despite significant experimental effort, proton decay has never been observed.
During 1984, Naba Kumar Mondal, TIFR, and Prof. Ito, Osaka City University, Japan, performed experimental studies on proton decay and indirectly observed the scatter of muons. Murali and Balasubramaniam briefly assisted Mondal and Ito as research assistants.
The Super-Kamiokande (SK) is a Cherenkov detector used to study neutrinos from different sources including the Sun, supernovae, the atmosphere, and accelerators. It is also used to search for proton decay. The experiment began in April 1996 and was shut down for maintenance in July 2001, a period known as "SK-I".
A simulated particle collision in the LHC. The safety of high energy particle collisions was a topic of widespread discussion and topical interest during the time when the Relativistic Heavy Ion Collider (RHIC) and later the Large Hadron Collider (LHC)—currently the world's largest and most powerful particle accelerator—were being constructed and commissioned.
The Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo (神岡 宇宙 素粒子 研究 施設, Kamioka Uchū Soryūshi Kenkyū Shisetsu, Japanese pronunciation: [kamioka ɯtɕɯː soɾʲɯꜜːɕi keŋkʲɯː ɕiseꜜtsɯ]) is a neutrino and gravitational waves laboratory located underground in the Mozumi mine of the Kamioka Mining and Smelting Co. near the Kamioka ...
Soudan 2 was the successor to the Soudan 1, a similar 30 ton detector also intended to search for proton decay. [2] The excavation for Soudan 2 was done in 1984–1985. Installation was started in 1986 and was completed in 1993. The experiment was run from April 1989 to June 2001, beginning with a partial detector of 275 tons. [3]
The Biden administration ended the China Initiative in February 2022 after a strategic review determined that it fueled a “harmful perception” of bias in Justice Department investigations and ...
Studies of supernovae and the formation of a neutron star or black hole, even though the detector is 1,490 meters (0.93 mi) deep underground with no direct view of the sky. [8] Search for proton decay, which has never been observed but is predicted by theories that unify the fundamental forces. [9]