Sunday, December 22, 2013
Sunday, December 08, 2013
Sunday, November 24, 2013
Saturday, November 23, 2013
Friday, November 22, 2013
My editorial on the 2013 Physics Nobel Prize
My editorial on the 2013 Nobel Physics prize in Current Science
Vol. 105, No. 10, November 25, 2013 issue.
Friday, November 15, 2013
Thursday, November 14, 2013
Monday, November 11, 2013
Friday, November 08, 2013
Thursday, October 31, 2013
Monday, October 21, 2013
Monday, October 14, 2013
Nobel Prize colloquia
Tuesday, October 08, 2013
Tuesday, September 10, 2013
Institute Colloquium on 24th September, 2013, 4 pm, Faculty Hall, IISc, `Vistas in Elementary Particle Physics'
I have been invited by my employer to deliver the `Institute Colloquium' which is said to be a once in a career honour. It will take place on the 24th of this month at 4 pm at Faculty Hall. The title is: Vistas in Elementary Particle Physics.
I give the abstract below.
In this colloquium, we will take a quick tour through some of the most exciting developments in the field of elementary particle physics, in an accessible manner, including an introduction to the Higgs Mechanism and the recent discovery. By discussing in general the challenges, we will also highlight some of our own research results in several branches of particle physics. An effort will be made to reach all the research students in the Institute, irrespective of the branch of study as well as undergraduate students.
Update: the link has been deposited here.Wednesday, July 31, 2013
Monday, July 29, 2013
Sunday, July 28, 2013
Wednesday, July 24, 2013
Monday, July 22, 2013
Thursday, July 18, 2013
Tuesday, July 16, 2013
Friday, July 05, 2013
Thursday, July 04, 2013
Vistasp Karbhari officially named President of University of Texas at Arlington - Parsi Khabar
Vistasp Karbhari officially named President of University of Texas at Arlington - Parsi Khabar
My old buddy from Delaware makes it to the big leagues!
My old buddy from Delaware makes it to the big leagues!
Thursday, June 20, 2013
Saturday, June 15, 2013
Thursday, June 13, 2013
Tuesday, June 11, 2013
Sunday, June 09, 2013
Friday, May 31, 2013
Tuesday, May 14, 2013
Thursday, April 18, 2013
Sunday, April 14, 2013
Thursday, April 04, 2013
Wednesday, April 03, 2013
Tuesday, April 02, 2013
Monday, April 01, 2013
Convocations and convocation robes
Thursday, March 21, 2013
Friday, March 15, 2013
Thursday, February 28, 2013
QOTD
Monday, January 21, 2013
Tuesday, January 08, 2013
Our research featured in IISc Research Highlights.
It is given below for fear of link-rot in the future.
Research Highlights
Determination of the strong coupling constant at high precision using renormalization group and Borel summation methods
- B. Ananthanarayan, Gauhar Abbas, CHEP
The determination of the strong coupling constant, which is the analog of the Sommerfeld fine structure constant of elecrodynamics, is one of the most important issues in elementary particle physics. The problem is a very subtle and difficult one due to the inherent uncertainties of renormalization group methods. Recently, an important new development has been advanced by a student, Gauhar Abbas (now a post-doctoral fellow at the Institute of Mathematical Sciences, Chennai) and B. Ananthanarayan (Professor and Chairman, CHEP) from the Centre for High Energy Physics of the Indian Institute of Science, working in collaboration with Irinel Caprini from Bucharest, Romania, in the use of a particular method of resumming renormalization group effects in the extraction of the strong coupling constant from the decays of the tau-lepton, a superheavy cousin of the electron. This result was published in Phys.Rev. D85 (2012) 094018 some months ago, and has already been cited in an influential review by Siegfried Bethke in his `World Summary' for this constant for the year 2012. The trio above has more recently collaborated with Jan Fischer from Prague, Czech Republic, to accelerate the convergence of the relevant perturbation expansion in the Borel plane, as the theory is known to have a zero radius of convergence. F. Dyson had addressed the corresponding problem in electrodynamics over a half century ago. These authors have presently put together powerful tools of complex analysis and Borel summation methods and have obtained impressive results by combining these with renormalization group summation and have provided an excellent determination of the strong coupling constant with reduced errors. This work has been published in Phys. Rev. D 87 (2013) 014008 on January 7, 2013. The CHEP group has thus broken new ground and have contributed in a fundamental manner to the advance of elementary particle physics.
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