LISTSERV mailing list manager LISTSERV 16.5

Help for SNOWMASS-EF Archives


SNOWMASS-EF Archives

SNOWMASS-EF Archives


SNOWMASS-EF@LISTSERV.SLAC.STANFORD.EDU


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

SNOWMASS-EF Home

SNOWMASS-EF Home

SNOWMASS-EF  June 2013

SNOWMASS-EF June 2013

Subject:

agenda and HOMEWORK for the Thursday EF conveners' meeting

From:

"Peskin, Michael E." <[log in to unmask]>

Reply-To:

snowmass-ef Snowmass 2013 Energy Frontier conveners <[log in to unmask]>

Date:

Tue, 4 Jun 2013 14:06:49 -0700

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (139 lines)

Folks:

Here are the agenda and phone meeting coordinates for our meeting this Thursday.

Please note under item #2 that each working group should circulate 1 slide in 
advance. 

Thanks,

Michael and Chip

========================================================

We will have our weekly EF Convener's phone call on Thursday, June 6.

Energy Frontier Conveners' meeting

June 6: 11:00 PDT / 2:00 EDT
       Contact information:

      You call:    domestic...     (877) 287-0283
                   international...(303) 433-0165

      participant code: 290-043


We will start the meeting promptly and end promptly after 1 hour.

Agenda 

0.  The Education and Outreach group will organize a Physics Slam in Minnesota.  Any 
volunteers?  Please suggest younger members of your group who would be great at this.

1. Seattle meeting:   How many from your group will attend?  How much more 
       publicity is needed?

2.  Your working group's status by Seattle:

 ->   Please make 1 slide reporting

      a. What work can you reliably predict will be reported at Seattle?
      b. What work will not be completed by Seattle but will be completed before
             Minnesota?

   and email it to the snowmass-ef mailing list.  We will go over the lists on 
        Thursday and then update them each week.

   Chip and Michael anticipate that there is much work that will not come in until 
        after Seattle.  This is especially true for work that will be done within
         ATLAS and CMS for their white papers.  We will need to provide frameworks
          for our reports and then hang the new information at the appropriate place
            on the framework when it is available.

3.  Begin discussion of our conclusions for Seattle.   In our opinion, the most 
uncertain aspect of what we will present is the physics case for the HL-LHC,  
ie. LHC from 300 fb-1 to 3000 fb-1.   We list some elements of this case below.  
Chip and Michael would like to discuss: (a) what items should be added to this list  
(b) to what extent will you be prepared to discuss these items in detail at Seattle?

We will discuss other aspects of our "4 questions" in subsequent weeks.

Thank you,

   Chip and Michael 

=============================================================

Elements of the case for 3000 fb-1:  

   This is just a first draft; thanks to Ashutosh for correpondence

 1. Higgs:  

            Higgs mass from  gamma gamma and ZZ*
            general expectations for Higgs branching ratios
            Very accurate, low systematics measurements, e.g.   
                   Gamma(gamma gamma)/Gamma(ZZ*)
            Rare SM branching fractions  (mu mu, Z gamma) 
            Exotic branching fractions  (invisible, e mu, mu tau,  )

 2. W, Z physics:

            Light Higgs "resolves" the unitarity problem, but still there
               can be W,Z resonances in the TeV region.  These are searched for
                in vector boson scattering and studies of 3-vector couplings

3. Precision measurement:

          Are there special strategies for mW, mt, alphas  that can take advantage of 
               very high statistics by selecting special classes of events?

          Improvement in parton distributions, especially in gluon and antiquark 
                distributions

4. New particle searches:

          The ancient wisdom is:  a factor of 10 in luminosity gives a factor of 2 
                in energy .   But this fails to be true when the current limits are 
                already accessing the tails of parton distributions.

          Certain searches can take full advantage of the improvement in 
                luminosity:

             electroweakino searches in SUSY
             searches for Drell-Yan resonances
             searches for t tbar resonances, and for di-top or 4-top final states
             searches involving long-lived lepton partners
             heavy Higgs decay to Higgs(125), with one Higgs tagged in gamma gamma

          We should make a general picture of LHC searches that highlights these 
            opportunities.

          Some people would argue that no discovery at LHC with 3000 fb-1 excludes
            "naturalness".  Do we have an attitude toward this question?

5. Followup to discovery:

          The opportunity for new particle discovery at LHC 300 fb-1 is high.  What 
              measurements will then be needed?

             rare leptonic and multilepton decay paths
             tests of flavor-degenerate spectrum or flavor-changing decays
             what is the full mass spectrum of the decay products of new particles?

=============================================================================
     
-------------------------------------------------------------------------------------------
  Michael E. Peskin                           [log in to unmask]
  HEP Theory Group, MS 81                       -------
  SLAC National Accelerator Lab.        phone: 1-(650)-926-3250
  2575 Sand Hill Road                       fax:     1-(650)-926-2525
  Menlo Park, CA 94025 USA              www.slac.stanford.edu/~mpeskin/
---------------------------------------------------------------------------------------------
########################################################################
Use REPLY-ALL to reply to list

To unsubscribe from the SNOWMASS-EF list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=SNOWMASS-EF&A=1

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

March 2014
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
October 2012

ATOM RSS1 RSS2



LISTSERV.SLAC.STANFORD.EDU

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager

Privacy Notice, Security Notice and Terms of Use