Higgs pair production in [beta][beta][tau][tau] final states at the HL-LHC

A measurement of standard model Higgs pair production in [beta][beta][tau][tau] final states at the High Luminosity LHC is investigated. Higgs pair production can be used to measure the Higgs trilinear coupling constant, which uniquely determines the shape of the Higgs potential. The doubly hadronic, hadron-muon, and hadron-electron di-[tau] final states are considered, with a shape analysis on either the stransverse mass (doubly hadronic) or a BDT discriminant (hadron-muon, hadron-electron) distribution performed to extract expected significances. The expected 95% CL upper limit on the cross section times branching ratio from a combination of all three channels is 2.2 times the SM value, with an expected +1[sigma] uncertainty on the measured cross section of 67%, indicating this measurement is feasible.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Physics.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2015

Author dc:creator

• Lawhorn, Jay Mathew

Advisor dc:contributor.advisor

• Markus Klute.

• Physics.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/100335

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/100335