IIT Guwahati researchers find similarities between dark matter and neutrinos
Tuesday, August 16, 2022
  • Circulation
  • Advertise
  • About Us
  • Contact Us
Organiser
  • ‌
  • Bharat
  • World
  • Editorial
  • Analysis
  • Opinion
  • Defence
  • Sports
  • Business
  • More
    • RSS in News
    • Special Report
    • Culture
    • Sci & Tech
    • Entertainment
    • Education
    • Books
    • Interviews
    • Travel
    • Health
    • Obituary
SUBSCRIBE
No Result
View All Result
Organiser
  • ‌
  • Bharat
  • World
  • Editorial
  • Analysis
  • Opinion
  • Defence
  • Sports
  • Business
  • More
    • RSS in News
    • Special Report
    • Culture
    • Sci & Tech
    • Entertainment
    • Education
    • Books
    • Interviews
    • Travel
    • Health
    • Obituary
No Result
View All Result
Organiser
No Result
View All Result
  • Home
  • Bharat
  • World
  • Editorial
  • Opinion
  • Analysis
  • Culture
  • Defence
  • RSS in News
  • Subscribe
Home Bharat

IIT Guwahati researchers find similarities between dark matter and neutrinos

WEB DESK by WEB DESK
Jan 29, 2022, 09:00 am IST
in Bharat, Assam, Sci & Tech
Share on FacebookShare on TwitterTelegramEmail

New Delhi: Researchers at the Indian Institute of Technology (IIT), Guwahati, have found distinctive similarities between the nature of Dark Matter and Neutrinos. In the endeavour to unfold the nature of dark matter, a trio of theoretical physicists, Professor of Physics ArunansuSil and two of his Ph.D. students ArghyajitDatta and RishavRoshan of IIT Guwahati, Physics Department find that the origin and production of dark matter can be connected to the origin of neutrino mass. The work has recently been published in the leading international journal, Physical Review Letters.

For decades, physicists speculate about the presence of ‘dark matter’ in our Universe. Though its existence is inferred from its gravitational effect on visible matter, supposed to make up 27 % 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 late 90s, 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 that is of ’left-handed’ type, related to its spin projection. The mystery of neutrino mass may be related to the lack of its right-handed counterpart. The present work of the team 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.

Download Organiser App

Highlighting the unique aspect of their work, Prof. ArunansuSil, Department of Physics, IIT Guwahati said, “Although strongly hinted by several astrophysical observations, the lack of any direct evidence of dark matter particles suggests that it has a very feeble interaction with ordinary matter. Our proposal provides a clue to such a miniature interaction by showing that its smallness is connected to the lightness of the neutrino mass (smallest one) which is uniquely predicted to be in the pico electron-volt range.”

ArghyajitDatta added “Apart from explaining the dark matter and tiny neutrino mass, the same construction also addresses the third mystery: why there is more matter than anti-matter in the Universe? The two remaining sterile neutrinos, other than the dark matter one in the model, are responsible for such an asymmetry.”

RishavRoshan elaborated on it saying “We here take an interesting step ahead by showing for the first time that in fact the entire dark matter content of the Universe can be produced from the decay of the mediators of the weak force in nature and the Higgs boson in the early Universe and can easily obey cosmological bounds.”

Prof. Sil explained the importance of the work saying “The work 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.”

Attempts were there in the past also to use such sterile neutrinos as dark matter; however, those are currently under severe constraints from the non-observance of X-ray signal and cannot satisfy the observed dark matter density due to the difficulty associated with their production in the early Universe. 
 

ShareTweetSendShareSend
Previous News

China steps up info war against India in Maldives ahead of next year’s elections

Next News

Jammu and Kashmir: Indian Army recovers Chinese grenades, pistols in Ganderbal, 3 apprehended

Related News

Is Pak Army Chief’s visit to UK a strategic shift towards the Western Block?

Is Pak Army Chief’s visit to UK a strategic shift towards the Western Block?

Bharatiya Scientists’ Role in Swatantrata

Bharatiya Scientists’ Role in Swatantrata

Swarajya@75: Introspect, deliberate and move ahead!

[email protected]: Introspect, deliberate and move ahead!

Achieving Aatmanibharta through Swadeshi

Achieving Aatmanibharta through Swadeshi

How Atal Bihari Vajpayee turned a traditional Congress family into Jan Sangh voters over a meal?

How Atal Bihari Vajpayee turned a traditional Congress family into Jan Sangh voters over a meal?

Organiser e-copy – 21 August 2022

Organiser e-copy – 21 August 2022

Comments

The comments posted here/below/in the given space are not on behalf of Organiser. The person posting the comment will be in sole ownership of its responsibility. According to the central government's IT rules, obscene or offensive statement made against a person, religion, community or nation is a punishable offense, and legal action would be taken against people who indulge in such activities.

Latest News

Is Pak Army Chief’s visit to UK a strategic shift towards the Western Block?

Is Pak Army Chief’s visit to UK a strategic shift towards the Western Block?

Bharatiya Scientists’ Role in Swatantrata

Bharatiya Scientists’ Role in Swatantrata

Swarajya@75: Introspect, deliberate and move ahead!

[email protected]: Introspect, deliberate and move ahead!

Achieving Aatmanibharta through Swadeshi

Achieving Aatmanibharta through Swadeshi

How Atal Bihari Vajpayee turned a traditional Congress family into Jan Sangh voters over a meal?

How Atal Bihari Vajpayee turned a traditional Congress family into Jan Sangh voters over a meal?

Indian Army hoist Tricolour at world’s highest battlefield at Siachen Glacier celebrating India’s 76th Independence Day

Indian Army hoist Tricolour at world’s highest battlefield at Siachen Glacier celebrating India’s 76th Independence Day

7,500 sq ft Tricolour weighing 80-85 kg displayed at Dal Lake in Srinagar on Independence Day

7,500 sq ft Tricolour weighing 80-85 kg displayed at Dal Lake in Srinagar on Independence Day

5 crore plus selfies with tricolour uploaded on ‘Har Ghar Tiranga’ website

5 crore plus selfies with tricolour uploaded on ‘Har Ghar Tiranga’ website

Sri Lanka gives clearance to Chinese “spy” vessel Yuan Wang 5, now docked at Hambantota Port

Sri Lanka gives clearance to Chinese “spy” vessel Yuan Wang 5, now docked at Hambantota Port

“PM Modi’s I-Day speech inspires every Indian to contribute towards making of a Golden India,” says Amit Shah

“PM Modi’s I-Day speech inspires every Indian to contribute towards making of a Golden India,” says Amit Shah

  • Privacy
  • Terms
  • Cookie Policy
  • Refund and Cancellation
  • Delivery and Shipping Policy

© Bharat Prakashan (Delhi) Limited.
Tech-enabled by Ananthapuri Technologies

No Result
View All Result
  • Home
  • Bharat
  • World
  • Editorial
  • Analysis
  • Opinion
  • Defence
  • Culture
  • Sports
  • Business
  • RSS in News
  • Special Report
  • Sci & Tech
  • Entertainment
  • Education
  • Books
  • Interviews
  • Travel
  • Health
  • Obituary
  • Subscribe
  • Advertise
  • Circulation
  • About Us
  • Contact Us
  • Privacy Policy
  • Cookie Policy
  • Terms of Use
  • Refund and Cancellation

© Bharat Prakashan (Delhi) Limited.
Tech-enabled by Ananthapuri Technologies