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Introduction to on-shell amplitudes

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06-Introduction to on-shell amplitudes

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Academic year 2021/2022

Teacher
Prof. Simon David Badger
Degree course
PhD in Physics
Teaching period
Second semester
Type
Elective
Credits/Recognition
6, 24 hrs
Course disciplinary sector (SSD)
FIS/02 - theoretical physics, mathematical models and methods
Delivery
Formal authority
Language
English
Attendance
Obligatory
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Sommario del corso

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Program

Scattering amplitudes can be seen as fundamental building blocks for Gauge, Gravity and String theories. The study of their mathematical structure has led to many new insights into connections between seemingly unrelated topics as well as enabling new computations unfeasible with conventional techniques. In this course I will cover some of the new methods that are now being used to provide efficient and precise predictions for higher order corrections at colliders. 1) Spinor-helicity methods for massless and massive particles. 2) Tree-level techniques: on-shell and off-shell recursion. 3) Loop amplitude techniques: unitarity, integrand reductions, IBPs and finite fields, differential equations and special functions. 4) New methods for gravity amplitudes: the double-copy and applications to gravitational waves.

Suggested readings and bibliography

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Notes

Students wishing to take this course must register with the teacher via email

Timetable:

16.00-18.00

4/4, 6/4, 7/4, 11/4, 13/4, 25/4, 27/4, 28/4,

2/5, 4/5, 5/5, 9/5

The course may be attended in person or online.

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Last update: 11/03/2022 09:01
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