Fields of research interest

Weak interactions, with specific emphasis on neutrino physics
Beyond the standard model, including left-right symmetric model and grand unification
Particle properties in material medium, commonly (and inappropriately) known as finite temperature field theory
Particle properties in background magnetic fields
Astrophysics and Cosmology related to Particle Physics
Linearized theory of gravity

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Publications

(Click on the thumbnails for a larger view of the covers)

Books on Science

Academic books

Massive neutrinos in Physics and Astrophysics (with Rabindra N. Mohapatra): A book on neutrino physics for researchers and students in the field. World Scientific, Singapore, 1991. [Enlarged editions: 1998, 2004.] ISBN: 978-981238071-5.
Contents Index Publisher's page Online ordering

A first book of Quantum Field Theory (with Amitabha Lahiri): A beginning level text book on Quantum Field Theory. Narosa Publishing House, New Delhi, 2000. [Second edition 2005.] ISBN: 978-81-7319-654-6
Contents Index Publisher's page Online ordering Errata & Addenda

An introductory course of Statistical Mechanics : A text book on Statistical Mechanics for post-graduate as well as advanced undergraduate students. ISBN: 978-1842654361. Narosa Publishing House, New Delhi, 2007 [Reprint 2013].
Contents Index Publisher's page Online ordering Errata

An introductory course of Particle Physics : A text book on Particle Physics for post-graduate students as well as beginning researchers. ISBN: 978-1-48221698-1. CRC Press, July 2014.
Contents Index Publisher's page Online ordering Errata

A physicist's introduction to Algebraic Structures : A text book on various topics of algebra which are useful for physicists. Detailed discussion of vector spaces, groups and topological spaces. Short introduction to many other algebraic structures like metric spaces, rings, fields, measure spaces, Boolean algebra. Intended for post-graduate students as well as beginning researchers. ISBN: Hardback 978-1-108-49220-1; Paperback 978-1-108-72911-6. Cambridge University Press. March 2019.
Poster Contents Index Publisher's page Online ordering Errata

Popular-level books

Ki diyé samastô-kichu gorhā (What is everything made of): Popular book on particle physics in Bengali. West Bengal State Book Board, Calcutta, 1988. [Second edition 1997.]
Contents

Sa̅l-ta̅rikhér itihās (A history of dates and years): A book in Bengali on the development of calendars in various civilizations and its relation to the development of Astronomy. Samatat Prakashan, Calcutta, 1994. [Second edition, Sarat Book Distributors, Calcutta, 2003; Third edition 2015]
Contents Publisher's page

Sutrôpāt (Bengali translation of Isaac Asimov's "Beginnings", done in collaboration with Shekhar Guha): Anustup, Calcutta, 1997. [Edition: 2020].
Contents 1st edition cover

Ālôr kathā (On light): A book for children in Bengali on light. Shishu Sahitya Samsad, Calcutta, 1999. [Second edition 2005.]
Contents Online ordering

Bigyān: byakti jukti somoy somāj (Science: persons, arguments, time and society): A collection of popular scientific articles in Bengali. Anustup, Calcutta, 2001. [Editions: 2010, 2017]
Contents (pdf file) Jacket flaps

Māpjôker itihās (A history of measurements): A book in Bengali on the evolution of various units of measurement. Anustup, Calcutta, 2002. [Reprints, Sarat Book Distributors, Calcutta, 2003, 2018. Second edition, Levant Books, 2019.]
Contents (pdf file) Back cover Online ordering

Journey through time: a history of dates and years: English translation of my Bengali book Sāl-tarikhér itihās, listed above. Translated by Sushan Konar. Scholastic, New Delhi, January 2008. [Revised reprint April 2008]
Contents (pdf file) Errata

Rong-berong (Colors) (in collaboration with Shekhar Guha): A book in Bengali on the science of colors and color perception, the technology of color production and reproduction. Jnan Bichitra, Agartala, 2010. [2nd edition 2017]
Contents (pdf file) Jacket flaps

Einstein-er uttorādhikār (Einstein's legacy): Nine essays in Bengali, discussing various aspects of Einstein's work, his predecessors from whom he derived inspiration, and his impact on society and science. Bangiya Bijnan Parishad, Calcutta, 2011.
Contents (pdf file)

At the root of things : English translation of my Bengali book Ki diyé samastô-kichu gorhā, listed above. Translated by Sushan Konar. CRC Press, August 2014.
Publisher's page (with Table of Contents) Online ordering Errata

Bigya̅n ebong : 12 essays on the relation of science with other aspects of human life and thoughts, e.g., Science and superstitions, Science and religion, Science and mathematics, Science and imagination. Ababhash, Calcutta, 2016.
Table of Contents Online ordering

Sonkhya̅r jogot (The world of numbers) : On numbers: their definition, classification, writing systems, uses and abuses. Nirjhar, Calcutta, 2022.
Table of Contents Online ordering
All other kinds of publications:
1. Research publications click here
  - Refereed articles click here
  - Conference contributions and unpublished articles click here
  - To view the publication list directly from the SLAC InSpire database, click below:
    - Full publication list
    - Citesummary only
2. Popular and pedagogical scientific articles click here
3. Books not related to science click here
4. Contribution in edited collections click here

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Conferences, talks and other public appearances

Click here for a list of conference activity, delivered talks (approximately) since mid-1997.

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Teaching and PhD supervision

Click here for a list of courses taught and for names of students who got their PhD under my supervision.

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Software help

Those who use the natural system of units, click here to see a conversion table which shows how various conventional units (like GeV, cm, erg) are related in the natural units.
I have created a package for typesetting documents in Bangla using the Tex/Latex systems. It is called bangtex. You can click on the name to find out more about it, see a small sample of the output, and instructions for downloading it.
I have created a Latex-based package for talk presentation. It is called pptalk. You can click on the name to find out more about it and instructions for downloading it.
Click here to see a list of all unicode characters.

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Professional and Educational History

Degrees :
- B.Sc. (1972–1975) Presidency College, Calcutta University, Calcutta, India
- M.Sc. (1975–1977) Calcutta University, Calcutta, India
- Ph.D. (1979–1983) Carnegie-Mellon University, Pittsburgh, USA
Post-doctoral Research Associateships :
- (1984–1986) University of Maryland, College Park, USA
- (1986–1989) University of Massachusetts, Amherst, USA
- (1989–1992) University of Oregon, Eugene, USA
- (1992–1994) University of Texas, Austin, USA
Extended visitorships (One month or more):
- University of Puerto Rico, Río Piedras, Puerto Rico
- École Polytechnique, Palaiseau, France
- International Centre for Theoretical Physics, Trieste, Italy
- Instituto Superior Técnico, Lisboa, Portugal
Faculty positions :
- Associate Professor (1994–1997), Indian Institute of Astrophysics, Bangalore, India
- Associate Professor (1997–1999), Saha Institute of Nuclear Physics, Calcutta, India
- Professor (1999–2007), Saha Institute of Nuclear Physics, Calcutta, India
- Senior Professor (2007–2017), Saha Institute of Nuclear Physics, Calcutta, India
Emeritus positions :
- Emeritus Professor (2017–present), Physics Department, Calcutta University, India