mSUGRA base point modified from the 0802'2968 paper

1
6/26/09
2
First Attempt
8/13/09

• mSUGRA base point (modified from the 0802.2968
  paper)
• m0250 GeV m1/2350 GeV tanb40 A00 mgt0
• Ngen 200,000 events1) M(c20) - M(c10) ? M(tt)
  endpoint 124 GeV for the
• 2) M(t1/-) - M(c10) 49 GeV.
• Leshouches spectrum and decay file by Shpeno
• ("Spheno_Bhaskarscenario.spc")
• Cross section about 7pb (200,000 events ??
  about 30fb-1
• Event Selections
• N(hadronic taus) gt 2 (1) for di-tau (tau-muon)
  case
• With pTvis gt 40 and 20 GeV and h lt 2.5
• N(j) gt 2 with with pT gt 10 GeV and h lt 2.5
• tau detection efficiency of 90 fake jet rate
  of 5
• MET gt 180 GeV
• sum of E_T's of two first Jets and MET gt 400 GeV
• muons with pT gt 1 GeV (no isolation cut)

3
8/13/09
No LFV
1a
1b
OS
Di-tau
LS
OS-LS
End Point 124 GeV
2a
2b
tau-muon_diff
tau-muon
Q1 Is the 2nd bump real effect?
4
8/13/09
LFV
2a
OS-LS
LFV_di-tau
Q2 The blue curve is from 1b. This mass
distribution should be the same as 2a. But not
Why?
3a
OS-LS
OS-LS
LFV_LFV_tau-muon_diff
LFV_tau-muon_diff
5
Proposed Changes (in red)
8/14/09

• mSUGRA base point (modified from the 0802.2968
  paper)
• m0250 GeV m1/2350 GeV tanb40 A00 mgt0
• Ngen 200,000 events1) M(c20)-M(c10) ? M(tt)
  endpoint 124 GeV for the
• 2) M(t1/-)-M(c10) 49 GeV.
• Leshouches spectrum and decay file by Shpeno
• ("Spheno_Bhaskarscenario.spc")
• Cross section about 7pb (200,000 events ??
  about 30fb-1
• Event Selections (modified)
• N(hadronic taus) gt 2 (1) for di-tau (tau-muon)
  case
• With pTvis gt 40 and 20 GeV and h lt 2.5
• N(j) gt 2 with with pT gt 30 GeV and h lt 2.5
  two leading jets with 150 GeV and 100 GeV ?
  Example if we have 4-jet event, those jets
  should be gt150, gt100, gt30, gt30 GeV.
• tau detection efficiency of 50 fake jet rate
  of 1
• MET gt 180 GeV
• sum of E_T's of two first Jets and MET gt 400 GeV
• muons with pT gt 10 GeV (with isolation cut using
  DR 0.5)