LHC Seminar

Probing electroweak symmetry breaking using vector boson scattering in ATLAS

by Tairan Xu (University of Michigan (US))

Europe/Zurich
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Description
 
Vector boson scattering (VBS) is a key process to study at the high-energy frontier. In particular longitudinal polarisation states of the boson have an intrinsic connection to the electroweak symmetry breaking and the Brout-Englert-Higgs mechanism. The Large Hadron Collider provides an unprecedented high-statistics dataset at the highest energy scale, enabling a comprehensive study of VBS, and search for deviations from Standard Model predictions. In this seminar, the first evidence of longitudinal boson polarisation in VBS through the study of electroweak production of same-sign W boson pairs obtained by ATLAS will be presented.  The analysis techniques and innovations important for achieving this result will be discussed. In addition, the seminar will recap several ATLAS measurements of (longitudinal) boson polarization with inclusive diboson processes, which shared the path to establish the methodology of boson polarization measurement as well as to pursue next-level precision tests of the Standard Model.

 

Refreshments will be served at 10h30

Organised by

Tancredi Carli, Jan Fiete Grosse-Oetringhaus and Michelangelo Mangano

Webcast
There is a live webcast for this event
Zoom Meeting ID
66018073680
Host
EP Seminars and Colloquia
Alternative hosts
Benoit Loyer, Tancredi Carli, Jan Fiete Grosse-Oetringhaus
Passcode
12847088
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