Probing the Electroweak Phase Transition with a Next Generation PP Collider

Date: 
Thursday, September 17, 2015 - 9:00am to Saturday, September 19, 2015 - 2:00pm
Location: 

Lederle Graduate Research Tower (LGRT) 419B, UMass Amherst

This will be the first in a series of workshops focusing on the physics opportunities with a next generation proton-proton collider.

The goal of the workshop is to identify the high energy collider signatures associated with different scenarios for the electroweak phase transition, focusing on opportunities for a next generation pp collider. Exploring the thermal history associated with electroweak symmetry breaking is a question at the forefront of particle physics and cosmology. In the Standard Model, EWSB is associated with a cross over transition. However, in a variety of well-motivated SM extensions, the nature of the EWSB transition may be different. Of particular interest is the possibility of a first order electroweak phase transition that would provide conditions needed for electroweak baryogenesis.

The format will involve a mixture of informal talks and discussions including both theorists and experimentalists. We anticipate that the workshop will lead to new dedicated studies to identify the physics reach of a ~ 100 TeV pp collider with respect to the electroweak phase transition. Among the questions to be addressed are:

1. What are the implications of BSM scenarios that address the hierarchy problem(s) for the EW phase transition?

2. What BSM scenarios could lead to a first order EW phase transition as needed for electroweak baryogenesis?

3. What are the signatures at a next generation pp collider of these scenarios and how are they related to the character of the EW phase transition?

4. To what extend might these scenarios be probed with a next generation hadronic collider and would such studies complement those
anticipated at the LHC and future e+e- colliders?

Co-organizers:
Andrey Katz (U. Geneva & CERN)
Ashutosh Kotwal (FNAL & Duke U.)
Tao Liu (Hong Kong U. Science & Technology)
Michelangelo Mangano (CERN)
Michael Ramsey-Musolf (U. Mass. Amherst)
Shufang Su (U. Arizona)

Workshop Photos: 

Schedule

2015-09-17
Thursday, September 17
9:00am
Welcome

Michael Ramsey-Musolf & Rory Miskimen

UMass Amherst

File acfi_100tev_welcome.pptx
Thursday, September 17
9:15am
Thursday, September 17
10:45am
Thursday, September 17
11:15am
Thursday, September 17
12:00pm
General Discussion

All Participants

Thursday, September 17
12:30pm
Thursday, September 17
2:00pm
Singlet Extensions I

Peter Winslow

UMass Amherst

PDF icon nextgenppewpt_talk.pdf
Thursday, September 17
2:45pm
Singlet Extensions III

Chien-Yi Chen

University of Victoria

PDF icon chen_acfi.pdf
Thursday, September 17
3:30pm
Thursday, September 17
4:00pm
Thursday, September 17
4:45pm
General Discussion

All Participants

Thursday, September 17
6:00pm
2015-09-18
Friday, September 18
9:00am
Naturalness Motivated Models

Andrew Cohen

Boston University

PDF icon ewpt_naturalness.pdf
Friday, September 18
9:45am
Friday, September 18
10:30am
Friday, September 18
11:00am
Friday, September 18
11:45am
General Discussion

All Participants

Friday, September 18
12:30pm
Friday, September 18
2:00pm
Electroweak Phase Transition Beyond the MSSM

Carlos Wagner

U. Chicago & Argonne National Laboratory

PDF icon wagner_amherst.09.18.15.pdf
Friday, September 18
2:45pm
Friday, September 18
3:30pm
Friday, September 18
4:00pm
Friday, September 18
4:45pm
General Discussion

All Participants

Friday, September 18
5:30pm
2015-09-19
Saturday, September 19
9:00am
Saturday, September 19
9:45am
Saturday, September 19
10:30am
Saturday, September 19
11:00am
Saturday, September 19
11:45am
Saturday, September 19
1:00pm