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Effective field theory techniques for New Physics searches
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05 - Effective field theory techniques for New Physics searches
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Academic year 2021/2022
- Teacher
- Prof. Martin Jung
- Degree course
- PhD in Physics
- Teaching period
- Second semester
- Credits/Recognition
- 5 20 hrs
- Delivery
- Formal authority
- Language
- English
- Attendance
- Obligatory
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Sommario del corso
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Program
"Effective field theories (EFTs) constitute an essential technique in physics, allowing for the systematic separation of largely different scales in a problem, i.e. for exploiting hierarchies. Such hierarchies occur everywhere in physics; in the Standard Model (SM) examples are the hierarchy between the masses of the massive gauge bosons and the top quark compared to those of all other fermions, or the mass of the bottom quark compared to typical hadronic scales. Importantly, the absence of indications for new states beyond the SM ones indicates that such states might be very heavy. As a consequence, their impact on low-energy observables can be treated in an EFT framework; precision measurements at much lower energies can then be used to constrain New Physics models strongly, even if the corresponding states cannot be produced at existing colliders.
The plan of the course is to introduce EFT techniques in general, discussing their applicability and restrictions. The developed methods are then applied to specific classes of observables relevant to the discourse of NP, in order to explicitly demonstrate how constraints on NP scenarios are obtained.
Suggested readings and bibliography
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Note
Students wishing to take this course must register with the teacher via email
Period
April-May 2022
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