The new inner-TEC trigger of the L3 experiment using a hardwired neural network processor

被引:28
作者
Haas, D [1 ]
Steinacher, M [1 ]
Tauscher, L [1 ]
Vlachos, S [1 ]
Wadhwa, M [1 ]
机构
[1] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
关键词
D O I
10.1016/S0168-9002(98)01134-6
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A new first-level trigger for the L3 experiment at LEP (CERN) is presented. It is using the inner time expansion chamber of the detector. The event selection is based on identifying sectors containing genuine tracks originating from the interaction point. The sector identification uses a neural network algorithm tuned to identify single tracks in a sector (hadronic jets are also selected). The hardware for this trigger is built around existing custom made neural network digital modules. The decision time is less than 100 ns and the final rate of accepted events is 1-5 Hz depending on the beam luminosity. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:101 / 116
页数:16
相关论文
共 6 条
[1]   THE CONSTRUCTION OF THE L3 EXPERIMENT [J].
ADEVA, B ;
AGUILARBENITEZ, M ;
AKBARI, H ;
ALCARAZ, J ;
ALOISIO, A ;
ALVAREZTAVIEL, J ;
ALVERSON, G ;
ALVIGGI, MG ;
ANDERHUB, H ;
ANDERSON, AL ;
ANGELOV, AM ;
ANGELOV, TH ;
ANTCHEV, GH ;
ANTONOV, L ;
ANTREASYAN, D ;
AREFIEV, A ;
ATANASOV, IH ;
AUROY, B ;
AYAD, R ;
AYRANOV, OL ;
AZEMOON, T ;
AZIZ, T ;
BACHMANN, U ;
BAHLER, P ;
BAKKEN, JA ;
BAKSAY, L ;
BALDINGER, H ;
BALL, RC ;
BALLANSAT, J ;
BANERJEE, S ;
BAO, J ;
BARBIER, G ;
BARONE, L ;
BASTI, G ;
BAY, A ;
BEAUVAIS, F ;
BECKER, U ;
BEISSEL, R ;
BENDIG, S ;
BENE, P ;
BERDUGO, J ;
BERGES, P ;
BERTHET, M ;
BERTSCH, Y ;
BETEV, BL ;
BILAND, A ;
BISCHOFF, A ;
BISCHOPS, M ;
BIZZARRI, R ;
BLAISING, JJ .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 289 (1-2) :35-102
[2]   RESULTS FROM THE L3 EXPERIMENT AT LEP [J].
ADRIANI, O ;
AGUILARBENITEZ, M ;
AHLEN, S ;
ALCARAZ, J ;
ALOISIO, A ;
ALVERSON, G ;
ALVIGGI, MG ;
AMBROSI, G ;
AN, Q ;
ANDERHUB, H ;
ANDERSON, AL ;
ANDREEV, VP ;
ANTONOV, L ;
ANTREASYAN, D ;
ARCE, P ;
AREFIEV, A ;
ATAMANCHUK, A ;
AZEMOON, T ;
AZIZ, T ;
BABA, PVKS ;
BAGNAIA, P ;
BAKKEN, JA ;
BAKSAY, L ;
BALL, RC ;
BANERJEE, S ;
BAO, J ;
BARILLERE, R ;
BARONE, L ;
BASCHIROTTO, A ;
BATTISTON, R ;
BAY, A ;
BECATTINI, F ;
BECKER, U ;
BEHNER, F ;
BEHRENS, J ;
BENCZE, GL ;
BERDUGO, J ;
BERGES, P ;
BERTUCCI, B ;
BETEV, BL ;
BIASINI, M ;
BILAND, A ;
BILEI, GM ;
BIZZARRI, R ;
BLAISING, JJ ;
BOBBINK, GJ ;
BOCK, R ;
BOHM, A ;
BORGIA, B ;
BOSETTI, M .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1993, 236 (1-2) :1-146
[3]   REAL-TIME TRACK IDENTIFICATION WITH ARTIFICIAL NEURAL NETWORKS [J].
ATHANASIU, G ;
PAVLOPOULOS, P ;
VLACHOS, S .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 324 (1-2) :320-329
[4]  
Hertz J., 1991, Introduction to the Theory of Neural Computation
[5]   HARDWARE REALIZATION OF A FAST NEURAL-NETWORK ALGORITHM FOR REAL-TIME TRACKING IN HEP EXPERIMENTS [J].
LEIMGRUBER, FR ;
PAVLOPOULOS, P ;
STEINACHER, M ;
TAUSCHER, L ;
VLACHOS, S ;
WENDLER, H .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 365 (01) :198-202
[6]   Comparison of four hardware solutions for an on-line neural network event selector [J].
Vlachos, S ;
Wadhwa, W ;
Lindblad, T ;
Lindsey, CS .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 385 (02) :361-365