Advanced School & Workshop on Multiloop Scattering Amplitudes

15 Jan 2024, 07:30 → 19 Jan 2024, 18:00 Asia/Kolkata

Homi Bhabha Hall (NISER Bhubaneswar)

Narayan Rana (NISER Bhubaneswar)

 

The aim of this advanced school-cum-workshop is to provide an introductory overview of the techniques for multi-loop computation to the young researchers working in theoretical precision physics. In addition to the introductory lectures, the event will also highlight recent state-of-the-art developments in Feynman integral computation, infrared subtraction techniques, resummation and other topics, covering primarily the foundational, mathematical and phenomenological aspects. This event will also enhance direct exchange of scientific information among members of the perturbative QCD community in India. 

Monday, 15 January

07:30 → 09:00 Breakfast and registration

09:15 → 10:00 Inauguration

09:30 Inaugural lecture by the Director, NISER

Speaker: Prof. H. N. Ghosh

10:00 → 11:00 Basics of perturbative QCD

10:00 Basics of Perturbative QCD: Introduction

Speaker: Ravindran Vajravelu (The Institute of Mathematical Sciences)

NISERQCD_Ravi.pdf

11:00 → 11:30 Tea-break

11:30 → 12:30 Electroweak physics

11:30 Electroweak physics: Precision studies

Speaker: Alessandro Vicini (University of Milano)

Vicini-EWphysics-Bhubaneswar.pdf

12:30 → 14:00 Lunch

14:00 → 15:00 Basics of perturbative QCD

14:00 Basics of perturbative QCD: Deep Inelastic Scattering

Speaker: Kay Schönwald (University of Zurich)

slides1_2023.pdf

15:00 → 16:00 Techniques for multi-loop computation

15:00 Techniques for multi-loop computation: Introduction

Speaker: Peter Marquard

16:00 → 16:30 Tea-break

16:30 → 18:00 Special topics

16:30 Special topics: Jet physics

Speaker: Meduri Chakravartula Kumar (IIT Guwahati)

MCKumar_NISER.pdf

17:30 NLP corrections to H+jet

Speaker: Satyajit Seth (Physical Research Laboratory)

niser_seth.pdf

19:30 → 22:00 Dinner

Tuesday, 16 January

07:30 → 09:00 Breakfast

09:00 → 10:00 Basics of perturbative QCD

09:00 Basics of perturbative QCD: Massive DIS

Speaker: Kay Schönwald (University of Zurich)

slides2_2023.pdf

10:00 → 11:00 Basics of perturbative QCD

10:00 Basics of perturbative QCD: The proton structure in the LHC era

Speaker: Sven-Olaf Moch

niser-pdfs.pdf

11:00 → 11:30 Tea-break

11:30 → 12:30 Electroweak physics

11:30 Electroweak physics: Renormalization

Speaker: Alessandro Vicini (University of Milano)

Vicini-EWcorrections.pdf

12:30 → 14:00 Lunch

14:00 → 15:00 Techniques for multi-loop computation

14:00 Techniques for multi-loop computation: Parametric representations of Feynman integrals

Speaker: Peter Marquard

15:00 → 15:30 Break

15:30 → 16:30 Techniques for multi-loop computation

15:30 Techniques for multi-loop computation: Method of differential equations

Speaker: Stefan Weinzierl (Universität Mainz)

feynman_bhubaneswar.pdf

16:30 → 17:00 Tea-break

17:00 → 17:45 Evening talk

17:00 Evening talk: Joy of discovery in the modern era - Some reflections and directions

Speaker: Ananthanarayan B

joy_niser.pdf

19:30 → 22:00 Dinner

Wednesday, 17 January

07:30 → 09:00 Breakfast

09:00 → 10:00 Techniques for multi-loop computation

09:00 Techniques for multi-loop computation: Applications of computer algebra in perturbative QCD

Speaker: Sven-Olaf Moch

niser-sums.pdf

10:00 → 11:00 Subtraction formalisms

LIII_HandsOn_MATRIX.pdf

10:00 Subtraction formalisms: Introduction

Speaker: Luca Buonocore (CERN)

LI-subtractions.pdf

11:00 → 11:30 Tea-break

11:30 → 12:30 Techniques for multi-loop computation

11:30 IBP reduction and Finite fields

Speaker: Samuel Abreu (CERN/Edinburgh University)

abreu2.pdf

12:30 → 14:30 Lunch

19:30 → 22:00 Dinner

Thursday, 18 January

07:30 → 09:00 Breakfast

09:00 → 10:00 Special topics

09:00 Resummation

Speaker: Ravindran Vajravelu (The Institute of Mathematical Sciences)

Niser2024.pdf

10:00 → 11:00 Subtraction formalisms

LIII_HandsOn_MATRIX.pdf

10:00 Subtraction formalisms: Advanced

Speaker: Luca Buonocore (CERN)

LII-SlicingNdPheno.pdf

11:00 → 11:30 Tea-break

11:30 → 12:30 Techniques for multi-loop computation

11:30 Techniques for multi-loop computation: Elliptic integrals

Speaker: Stefan Weinzierl (Universität Mainz)

12:30 → 14:00 Lunch

14:00 → 15:00 Techniques for multi-loop computation

14:00 Techniques for multi-loop computation: Discussion session

Speaker: Samuel Abreu (CERN/Edinburgh University)

abreu2.pdf

15:00 → 16:00 Techniques for multi-loop computation

15:00 Techniques for multi-loop computation: Series solution of differential equations

Speaker: Tommaso Armadillo (UClouvain)

NISER_armadillo.pdf

16:00 → 16:30 Tea-break

16:30 → 17:30 Special topics

16:30 Special topics: Radiative corrections and BSM physics

Speaker: Ambresh Shivaji (IISER Mohali)

Higgs-properties.pdf

17:30 → 18:15 Evening talk

17:30 Evening talk: Asymptotic symmetries in gauge theories and gravity

Speaker: Shamik Banerjee (National Institute of Science Education and Research, Bhubaneswar, India)

19:30 → 22:00 Dinner

Friday, 19 January

07:30 → 09:00 Breakfast

09:00 → 09:50 Special topics

09:00 Tree-level triple-collinear splittings involving massive particles

Speaker: Prasanna Kumar Dhani (IFIC, University of Valencia - CSIC, Spain)

Dhani@NISER_19.1.24.pdf

09:25 TBA

Speaker: Biswajit Das (The Institute of Mathematical Sciences, Chennai)

aswmsa_niser_24.pdf

09:50 → 10:30 Subtraction formalisms: Hands-on session

LIII_HandsOn_MATRIX.pdf

10:30 → 11:00 Tea-break

11:00 → 12:40 Special topics

11:00 Exploring New Physics in the Electroweak Gauge Sector: Spin Observables and Machine Learning at Future Electron-Positron Colliders

Speaker: Amir Subba (indian institute of science education and research, kolkata)

NISER_2024.pdf

11:20 NNLO QCD corrections to SIDIS - I

Speaker: Mr Saurav Goyal (The Institute of Mathematical Sciences, Chennai)

Saurav_19Jan.pdf

11:40 NNLO QCD corrections to SIDIS - II

Speaker: Vaibhav Pathak (The Institute of Mathematical Sciences)

NISER_Talk__2024_.pdf

12:00 Exploring GKZ hypergeometric systems for Feynman integral calculus

Speaker: Sudeepan Datta (Indian Institute of Science, Bengaluru)

ASWMSA_Sudeepan.pdf

12:20 Regions in multi-scale multi-loop Feynman integrals

Speaker: Ratan Sarkar (IMSc Chennai)

NISER_ASWMSA.pdf

12:40 → 14:30 Lunch

14:30 → 16:30 Special topics

14:30 Series expansion of hypergeometric functions about their parameters using MultiHypExp

Speaker: Souvik Bera (Indian Institute of Science)

MultiHypExp_talk_NISER.pdf

14:50 Colour building blocks of Cwebs in multiparton scattering

Speaker: Aditya Srivastav

talk.pdf

15:10 Effects of NLP Radiation on Angular Ordering

Speaker: Sourav Pal (Physical Research Laboratory)

NISER_Pal.pdf

15:30 Tea-break

15:50 Threshold enhanced cross sections for colorless productions

Speaker: Chinmoy Dey (Indian Institute of Technology Guwahati)

presentation.pdf

16:10 Precision studies of Golden decay channel of the Higgs boson

Speaker: Mandeep Kaur (Indian Institute of Science Education and Research Mohali)

NISER-MandeepKaur.pdf

16:30 → 16:45 Vote of thanks