τ → e γ,   τ → μ γ

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Links

Signal Modes

: Mode : Decfile               : Generator : Filter : Run Type                                :
: 3982 : tau_kk2f_0_1_25_1.tcl : continuum :        : tau+ -> generic tau- -> e-gamma (KK2F) :
: 3983 : tau_kk2f_0_1_25_2.tcl : continuum :        : tau+ -> generic tau- -> mu-gamma (KK2F) :
: 3984 : tau_kk2f_25_1_0_1.tcl : continuum :        : tau+ -> e+gamma tau- -> generic (KK2F) :
: 3985 : tau_kk2f_25_2_0_1.tcl : continuum :        : tau+ -> mu+gamma tau- -> generic (KK2F) :

Cuts

• 1-1 or 1-3 topology based on number of GoodTracksVeryLoose
• At least 1 photon with CM energy > 200 MeV in the hemisphere with the one GTVL
• -0.76 < cos(theta_gamma) < 0.92
• Signal track passes eMicroVeryTight (muNNTight) for e (μ) search
• Highest CM momentum track on other side fails eMicroLoose (muNNVeryLoose) [This is called the tag track]
• Signal and tag tracks have CM momentum < 4.5 GeV
• No extra photons with lab energy > 100 MeV in signal hemisphere
• Total tag side invariant mass < 1.6 GeV
• |Missing mass-sqared| < 1 GeV² in tag side hemisphere
• -Log[(Missing P_t)/(E_beam)] < 2.5
• -0.76 < CosTheta(Missing Momentum) < 0.92
• 0.900 < Thrust < 0.975
• 1.5 < M_ec < 2.1 GeV
• -1.0 < ΔE < 0.5 GeV

Files

ntpTrg_CCC_RunN-1.*

CCC can be emg for SP-3982, mmg for SP-3983, epg for SP-3984, and mpg for SP-3985.

 Name                    Last modified      Size  Description
 Emulation/              10-Nov-2007 10:32    -   
 Emulation2/             07-Dec-2007 13:09    -   
 header.inc              07-Dec-2007 13:09  8.9K  
 ntp1.C                  13-Aug-2007 11:48  1.9K  
 ntp1.h                  13-Aug-2007 11:52   26K  
 ntpTrg_emg_Run6-1.ps    13-Aug-2007 10:49  896K  
 ntpTrg_epg_Run6-1.ps    13-Aug-2007 10:49  896K  
 ntpTrg_mmg_Run6-1.ps    13-Aug-2007 10:49  896K  
 ntpTrg_mpg_Run6-1.ps    13-Aug-2007 10:49  896K  
 tt.t                    19-Nov-2007 10:30  306