Live
- Nagula Chavithi: Lord rides on Pedda Sesha Vahanam
- Redefining Skincare
- TGBIE announces due dates for exam fee payment
- Man, daughter held for killing 60-year-old woman
- India’s Mandeep Jangra wins WBF’s world title
- Tirupati: Hygiene concerns soar at eateries in pilgrim city
- Minister Sridhar Babu poses ten questions to BRS
- YSRCP suffers a big blow in Kuppam as municipal chairman joins TDP
- Congress Government's Special Focus on Unemployed Youth
- TG govt all set to procure record 91L metric tonnes paddy: Uttam
Just In
IIT-G explores mystery of dark matter
Researchers at the Indian Institute of Technology (IIT) Guwahati have found distinctive similarities between the nature of dark matter and neutrinos - one of the most abundant particles in the universe.
Researchers at the Indian Institute of Technology (IIT) Guwahati have found distinctive similarities between the nature of dark matter and neutrinos - one of the most abundant particles in the universe.
The team's findings published in the leading international journal Physical Review Letters, showed that the origin and production of dark matter can be related to the origin of neutrino mass.
For decades, physicists have speculated about the presence of adark matter' in our Universe.
Though its existence is inferred from its gravitational effect on visible matter, supposed to make up 27 per cent of the Universe, very little is known about it as no direct evidence in support of dark matter could be found so far indicating it as an exotic type of matter.
At the same time, among all the known particles in nature, neutrinos are perhaps the most elusive particles.
There are three flavours of neutrinos according to the Standard Model of particle physics, the immensely successful theoretical framework describing matter and interactions in nature.
This Standard Model predicts the neutrinos as massless. However, during the late 90's, it was found that neutrinos do have a tiny mass, the exact magnitude of which is still unknown.
Neutrinos are somewhat distinctive from other particles in the Standard Model as it is the only fermion which is of 'left-handed' type, related to its spin projection.
The study shows that the lightest right-handed or sterile neutrino, provided it exists as a part of a popular neutrino mass generation mechanism, having a mass of order a kilo to a mega electron-volts can be the dark matter candidate.
"The study bridges the three most prominent and long-standing mysteries of particle physics and cosmology within the most minimal extension of the Standard Model which can be falsifiable in ongoing and future experiments," Sil explained.
© 2024 Hyderabad Media House Limited/The Hans India. All rights reserved. Powered by hocalwire.com