Energy
Frontier Conveners' meeting
April 25: 11:00 PDT
/ 2:00 EDT
We will start the meeting promptly and end promptly after 1 hour.
Agenda
items
1. How did Vidyo work for you at Brookhaven? What do you
require from the Seattle organizers?
2. We need to propose
sessions of general interest for the parallel-session days at Minnesota.
Michael started a list below. Please add to it. We've attached the
first-pass block schedule discussed in the Snowmass conveners' meeting
last week.
3. We need to propose questions to the other
frontiers. These should in particular address issues that were not
covered by the Cosmic Frontier's list. Some examples are given below.
Please add more. We'll read them and briefly discuss them.
4.
And, in turn we will devote time in these meetings to discussing how we
will respond to the questions to us from Cosmic Frontier and others.
Today, we will discuss the two questions below. For the moment, it
would be good to know if we are on track to answer these questions or,
if not, what studies are needed.
Thank you,
Chip and
Michael
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Titles for Sessions of General Interest at
Minnesota:
1. Dark Matter -- attempt a perspective
including all detection methods including direct searches, and
comparison of their reach (needs to be organized with CF)
2.
Lepton Flavor Violation -- what new physics models are accessed by mu-e
conversion, mu-> e gamma, and tau-> ell gamma experiments now
being planned? How are these compared to direct search capabilities?
Can we see lepton flavor violation at colliders? (needs to be organized
with IF)
3. Future of the Higgs -- To what extent have we
already ruled out models of the Higgs field beyond the simple Standard
Model. What are examples of models that require precision measurements
at different levels? What should be the goal in precision Higgs
measurement?
4. Instrumentation for High-Luminosity Hadron
Colliders -- what are the emerging technologies for confronting the
problems of triggering, heavy flavor ID, and precision measurement with
high pileup? (needs to be organized with Inst. F.)
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Pump-priming questions to other frontiers:
EF-IF1: We would like to understand
the increase in sensitivity to new particles in loops as a function of
time for the g-2, mu-e conversion, tau -> ell gamma, and EDM
experiments. Can we plot this evolution along with the evolution in
sensitivity predicted for direct searches for new particles at the LHC?
EF-InstF1: High luminosity running
will depend on efficient triggering in a difficult environment.
Isolation requirements will likely be compromised which may place a
premium on tracking for lepton triggering. What are the few most
promising enabling technologies for electron/photon/tau triggers in an
environment, considering luminosities up to 10^{35} cm^{-2}s^{-1}? What
are likely R&D paths to realizing these technologies?
EF-CF1: If dark matter has no SM
interactions stronger than gravitational, are there any prospects for
discovering its particle nature?
[Daniel Whiteson also proposed the question:
EF-EF!: What is our best guess at the
probability that a 33 TeV (100 TeV) pp machine will discover nothing
new? [ note: this may be unanswerable, but it's sort of the big
elephant in the room ]
We think that this must be discussed in some way in our reports.
Another way to ask the question is, if there is no BSM physics at the
HL-LHC, what is the motivation to go to higher energy? ]
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Questions to us from the Cosmic Frontier, to
be discussed today:
"HE1": • The message from the LHC
seems to be that with data in hand, we consistently outperform
expectations for extraction of Higgs properties. How much is there
really for an ILC to contribute? What key assumptions are we making now
that we could relax with ILC inputs?
"HE2": • How much do we
gain from searches for e.g. triple-gauge-couplings in light of precision
electroweak data? Is there any kind of theory where we expect to
naturally have SM-like precision measurements, but large deviations in
the TGCs?
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