TY - JOUR
T1 - The ATLAS tau trigger
AU - Casado, MP
AU - Belanger-Champagne, C
AU - Benslama, K
AU - Bosman, M
AU - Brenner, R
AU - Czyczula, Z
AU - Dam, M
AU - Demers, S
AU - Farrington, S
AU - Igonkina, O
AU - Kalinowski, A
AU - Kanaya, N
AU - Osuna, C
AU - Perez, E
AU - Ptacek, E
AU - Reinsch, A
AU - Saavedra, A
AU - Sfyrla, A
AU - Shamini, M
AU - Sopczak, A
AU - Strom, D
AU - Torrence, E
AU - Tsuno, S
AU - Vorwerk, V
AU - Watson, Alan
AU - Xella, S
PY - 2009/4/1
Y1 - 2009/4/1
N2 - The implementation of a trigger for hadronically decaying tau leptons at the Large Hadronic Collider (LHC) is challenging due to the high background rate, on the other hand it increases tremendously the discovery potential of ATLAS in searches for Standard Model (SM) or Supersymmetric (SUSY) Higgs or other more exotic final states. In this paper we describe the ATLAS tau trigger system, focusing on the early data taking period, and present results from studies based on GEANT 4 simulated events, including trigger rates and the acceptance of tau leptons from SM processes. In order to cope with the rate and optimize the efficiency of important physics channels, the results of the current simulation studies indicate that ATLAS tau triggers should include either relatively high transverse momentum single tau signatures, or low transverse momentum tau signatures in combination with other signatures, such as missing transverse energy, leptons, or jets.
AB - The implementation of a trigger for hadronically decaying tau leptons at the Large Hadronic Collider (LHC) is challenging due to the high background rate, on the other hand it increases tremendously the discovery potential of ATLAS in searches for Standard Model (SM) or Supersymmetric (SUSY) Higgs or other more exotic final states. In this paper we describe the ATLAS tau trigger system, focusing on the early data taking period, and present results from studies based on GEANT 4 simulated events, including trigger rates and the acceptance of tau leptons from SM processes. In order to cope with the rate and optimize the efficiency of important physics channels, the results of the current simulation studies indicate that ATLAS tau triggers should include either relatively high transverse momentum single tau signatures, or low transverse momentum tau signatures in combination with other signatures, such as missing transverse energy, leptons, or jets.
U2 - 10.1016/j.nuclphysbps.2009.03.048
DO - 10.1016/j.nuclphysbps.2009.03.048
M3 - Article
SN - 0920-5632
VL - 189
SP - 291
EP - 298
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
T2 - International Workshop on Tau Lepton Physics, 10th
Y2 - 22 September 2008 through 25 September 2008
ER -