Previous talks

Title : Collinear anomaly and formalism of scalar SCET

Speaker : Ratan Sarkar

Date and Time : 25th October, Friday, 3:00 p.m.

Venue : LH3

Reference : Sections 2 and 3 of the review https://arxiv.org/abs/1410.1892.

Talk Slides

Title : New physics implications of recent search for K_L→π_0 ν ̄ ν at KOTO

Speaker : Priyanka Lamba

Date and Time : 18th October, Friday, 11:30 a.m.

Venue : D1-06

Reference : arXiv:1909.11111

Title : Dark matter and Collider signals in supersymmetric U(1)' models with non-universal Z' couplings

Speaker : Rahool Kumar Barman

Date and Time : 27th September, Friday, 3:00 pm

Venue : LH3

Reference : arXiv:1909.07176

Talk Slides

Cut Feynman diagrams : unitary cuts to coproducts and residue algebra

Speaker : Abhijit B. Das

Date and Time : 20/09/2019(Friday), 3:00 pm

Venue : LH3

References :

https://arxiv.org/abs/1702.03163

https://arxiv.org/abs/1401.3546

Talk Slides

Effective field theories for heavy quarkonium states

Speaker : MSA Alam Khan

Date and Time : 12th September, Thursday, 3:00 pm

Venue : LH3

References :

https://arxiv.org/abs/1908.11699

https://arxiv.org/abs/hep-ph/9907240

Talk Slides

The Differential Equation Method of Evaluating Feynman Diagram

Speaker : Souvik Bera

Date and Time : 5th September, Thursday, 3:00 pm

Venue : LH3

Reference : arXiv:0707.4037

A Practical and Consistent Parametrization of Dark Matter Self-Interactions

Speaker : Rhitaja Sengupta

Date and Time : 29th August, Thursday, 3:00 pm

Venue : LH3

Reference: https://arxiv.org/pdf/1908.06067.pdf

Talk Slides

Dark matter seeping through dynamic gauge kinetic mixing

Speaker : Shiuli Chatterjee

Date and Time : 22/08/2019, Thursday, 3:00 pm

Venue : LH3

Reference : arXiv:1905.11407

Talk Slides

Active and sterile neutrino phenomenology with A4 based minimal extended seesaw

Speaker: Pritam Das (Department of Physics, Tezpur University, Assam)

Date and Time: 13/08/2019, 3:00 p.m.

Venue: LH-3

Abstract:

We study a model of neutrino within the framework of minimal extended seesaw (MES), which plays an important role in active and sterile neutrino phenomenology in (3+1) scheme. The A4 flavor symmetry is augmented by additional Z4×Z3 symmetry to constraint the Yukawa Lagrangian of the model. We use non-trivial Dirac mass matrix, with broken μ−τ symmetry, as the origin of leptonic mixing. Interestingly, such structure of mixing naturally leads to the non-zero reactor mixing angle θ13. Considering non-degenerate mass structure for right-handed neutrinos , we have also shown three different cases for sterile neutrino mass, to check the viability of this model, within the allowed 3σ bound in this MES framework.

Talk Slides

Dark Matter and CP-violation in the Three-Higgs Doublet Model

Speaker : Najimuddin Khan

Date and Time : 08/08/2019, Thursday, 3:00 pm

Venue : LH3

Reference : DM and CP-violation in 3HDM

Talk Slides

Higgs Effective Field Theory

Speaker : Amit Adhikary

Date and Time : 01/08/2019, 3:00 pm

Venue : LH3

Reference: HEFT

Zero electron double beta decay In Xenon nuclei

And

A model of sequential Higgs Doublets

Speaker : Sudhir Vempati

Date - 09/05/2019

Reference :

https://arxiv.org/abs/1904.04257

https://www.nature.com/articles/s41586-019-1124-4.pdf

Effective field theory analysis of Higgs naturalness

Speaker : Matthew Arun Thomas

Date - 29/03/2019

Reference : arXiv : 1405.2924

Which EFT

Speaker : Ashwani Kushwaha

Date - 14/03/2019

Reference : https://arxiv.org/abs/1902.05936

The Supersymmetric R-Parity Violating Dine-Fischler-Srednicki-Zhitnitsky Axion Model

Speaker : Priyanka Lamba

Date - 04/02/2019

References :

https://arxiv.org/pdf/1807.02530.pdf

https://arxiv.org/abs/1104.0692

https://arxiv.org/abs/1402.5977

Neutrino Dark Matter and Collider Signatures

Speaker : Najimuddin Khan

Date - 10/01/2019

References :

https://arxiv.org/pdf/1812.06505.pdf

https://arxiv.org/pdf/1810.12920.pdf

BCFW Recursion Relation: Understanding Boundary Contributions

Speaker : Rhitaja Sengupta

Date - 19/12/2018

Reference:

https://arxiv.org/abs/hep-th/0412308

https://arxiv.org/abs/0801.2385

https://arxiv.org/abs/0911.0301

Expansion by Regions of massive multi-loop Feynman integrals near threshold

Speaker : Ratan Sarkar

Date -13/12/2018

Reference:

https://arxiv.org/pdf/hep-ph/9711391.pdf

Non-resonant and electroweak corrections to top pair production near threshold

Speaker : Ratan Sarkar

Date -15/11/2018

References:

https://pos.sissa.it/303/004/pdf

https://arxiv.org/abs/1711.10429v2

https://arxiv.org/pdf/1307.4337.pdf

The decay h → γγ in the Standard-Model Effective Field Theory

Speaker : Ashwani Kushwaha

Date - 30/08/2018

Reference:

https://arxiv.org/abs/1805.00302

https://arxiv.org/abs/1704.03888

https://arxiv.org/abs/1507.03568

https://arxiv.org/abs/1312.2014

Status of the tth production in h->bb channel at 13 TeV LHC

Speaker : Amit Adhikary

Date - 16/08/2018

Reference:

https://cds.cern.ch/record/2231510/files/HIG-16-038-pas.pdf

https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.072016