Manibrata Sen

Assistant Professor @iitbombay in Theoretical HEP | Former fellow @MPIK & UC Berkeley | PhD @TIFRScience | Research interests: Neutrinos, Dark Matter.

[Manibrata Sen @manibrata_sen]

Paper day : https://t.co/Hf7xVY3IJJ
What if the neutrinos we observe are actually massless particles, and the effect of neutrino mass that oscillation experiments see is just due to neutrinos scattering off dark matter? A question I try to address here with Alexei Smirnov.
🧵🧵

[Manibrata Sen @manibrata_sen]

We had quite a few interesting discussions on Day 1. Looking forward to Day 2.

[Walter Tangarife @waltertangarife]

Excited to be in Mumbai for a DM and neutrinos workshop organized by @manibrata_sen at IIT-Bombay

[DSTIndia @IndiaDST]

Hon’ble Union Minister @DrJitendraSingh visited the #ESTIC2025 innovation showcase, interacting with startups & encouraging young innovators. With #RDIF boosting private participation, the path to #AtmanirbharBharat grows stronger—driving innovation towards #ViksitBharat2047.

[Manibrata Sen @manibrata_sen]

By fostering collaboration across disciplines, ESTIC celebrates transformative ideas shaping the future of science, technology, and innovation in India. The Conclave runs from 3rd to 5th November 2025.

Keep watching this space for updates and reflections from ESTIC-2025.

[Manibrata Sen @manibrata_sen]

ESTIC-2025 begins today. India’s flagship platform bringing together ministries, researchers, and innovators to advance the vision of “Viksit Bharat 2047.” 

As a nominated Young Science & Technology Leader, I’m excited to be part of ESTIC-2025.
#estic2025 @ANRFIndia @iitbombay

[Manibrata Sen @manibrata_sen]

@thebdasgupta Credit to you for your mentorship which provided the relativistic boost, Basu da 😃.

[Manibrata Sen @manibrata_sen]

@AmartyaMitra @iitbombay Thanks a lot, gurudeb 😉

[Manibrata Sen @manibrata_sen]

Feels great to have received the Prime Minister Early Career Research Grant from @anrf_india! I would like to thank all my mentors, and collaborators for their invaluable support.
Hope to do some exciting science with this added incentive 😉. @iitbombay #EarlyCareerScientist

[Manibrata Sen @manibrata_sen]

@srubabati @iitbombay Thank you 🙂

[Manibrata Sen @manibrata_sen]

Interesting week for neutrino enthusiasts! 😃
The KM3Net collaboration reports  the detection of a muon with an estimated energy of around 120 PeV (although the error bar is fairly large) !
https://t.co/8a0szEYceu

[Manibrata Sen @manibrata_sen]

@thebdasgupta Yeah, I quoted the article, so this is the author's viewpoint :) .

[Manibrata Sen @manibrata_sen]

This, if confirmed, will be exciting 🙂

-- On February 6, 2025, something unprecedented occurred: a gravitational wave signal that was accompanied by the arrival of neutrinos.
This could turn out to be the most important gravitational wave event ever seen.

[Ethan Siegel @StartsWithABang]

Did LIGO just see its most important gravitational wave ever?

On February 6, 2025, LIGO saw a gravitational wave event that must've involved a neutron star.

IceCube saw a neutrino arriving from the place, simultaneously.

What could that mean?
https://t.co/ewriDNavTy

[ICTS @ictstifr]

ICTS-TIFR, Bengaluru is inviting applications from academically bright and motivated students for the ICTS - Long Term Visiting Students Program 2025.

For more information, please visit https://t.co/FuZHg1KRh7

Application Deadline: 28 February 2025
Contact: [email protected]

[Manibrata Sen @manibrata_sen]

This is precisely the effect that gets imprinted on the DSNB. With sufficient experimental precision and handle on the astro uncertainties, one can actually probe this directly. This remains the only way to test such cases in the near future 🙂.

[Manibrata Sen @manibrata_sen]

Paper day: https://t.co/qCmTXkJnTa
Suppose the nu mass-orderings were actually smaller/different in the past. This scenario receives encouragement from the recent DESI survey. Can this be tested? @yuberfpg and I claim that an observation of the DSNB can do exactly that! 🙂

[Manibrata Sen @manibrata_sen]

This can lead to scenarios where the MSW resonance takes place for either nus or antinus, depending on the sign of the mass-squared difference in the past. Furthermore, smaller mass-squared difference can lead to the resonance being crossed non-adiabatically!

[Manibrata Sen @manibrata_sen]

Attending the XXVI DAE-BRNS HEP symposium at the amazing Banaras Hindu University, Varanasi. Good to see our results on pseudo-Dirac neutrinos being advertised in the plenary session 😃 @yuberfpg .

[Manibrata Sen @manibrata_sen]

A huge and irreparable loss for the Physics community. I have been fortunate enough to learn from her during the various occasions that we met. Gone too soon.

[Centre for High Energy Physics, IISc @CHEP_IISc]

We are saddened to share the passing of Padma Shri Prof. Rohini Godbole. A renowned scientist, leader, mentor, and champion for women in science. A memorial service will be held today at 4 PM in the Physical Sciences Auditorium.
https://t.co/pnoXxeLALl
ID: 94124015220
Pswd:075905

[Tata Institute of Fundamental Research @TIFRScience]

We are deeply saddened by the passing of Mr Ratan Tata. The nation has lost one of its most inspirational figures. @TIFRScience is deeply indebted to him for being a major guiding force to the institute and for his unwavering support over the decades.

We will miss you Mr. Tata.

[Manibrata Sen @manibrata_sen]

In Otranto for the next few days, attending this amazing workshop.
Always in awe of how the organisation does such a perfect job of getting everything right - breathtaking location, delightful food, and of course, fantastic talks 😉