The ATLAS Level-1 Calorimeter Trigger
R. Achenbach(Heidelberg University), P. Adragna(Queen Mary University of London), V. Andrei(Heidelberg University), P. Apostologlou(Rutherford Appleton Laboratory), B. Åsman(Stockholm University), C. Ay(Johannes Gutenberg University Mainz), B. M. Barnett(Rutherford Appleton Laboratory), B. Bauß(Johannes Gutenberg University Mainz), M. Bendel(Johannes Gutenberg University Mainz), C. Böhm(Stockholm University), J. Booth(Rutherford Appleton Laboratory), I.P. Brawn(Rutherford Appleton Laboratory), Philipp Thomas(University of Birmingham), D. G. Charlton(University of Birmingham), N. J. Collins(University of Birmingham), C. J. Curtis(University of Birmingham), A. Dahlhoff(Johannes Gutenberg University Mainz), A.O. Davis(Rutherford Appleton Laboratory), S. Eckweiler(Johannes Gutenberg University Mainz), John Edwards(Rutherford Appleton Laboratory), E. Eisenhandler(Queen Mary University of London), Peter Faulkner(University of Birmingham), J. Fleckner(Johannes Gutenberg University Mainz), F. Föhlisch(Heidelberg University), J. Garvey(University of Birmingham), C. N. P. Gee(Rutherford Appleton Laboratory), A. R. Gillman(Rutherford Appleton Laboratory), P. Hanke(Heidelberg University), R. Hatley(Rutherford Appleton Laboratory), S. Hellman(Stockholm University), Attila Hidvégi(Stockholm University), S. J. Hillier(University of Birmingham), K. Jakobs(Johannes Gutenberg University Mainz), M. Johansen(Stockholm University), E.-E. Kluge(Heidelberg University), M. P. J. Landon(Queen Mary University of London), V. Lendermann(Heidelberg University), J. N. Lilley(University of Birmingham), K. Mahboubi(Heidelberg University), G. Mahout(University of Birmingham), A. Mass(Heidelberg University), K. Meier(Heidelberg University), T. Moa(Stockholm University), E. J. W. Moyse(Queen Mary University of London), F. Müller(Heidelberg University), A. Neusiedl(Johannes Gutenberg University Mainz), C. Noding(Johannes Gutenberg University Mainz), B. Oltmann(Johannes Gutenberg University Mainz), J.M. Pentney(Queen Mary University of London), V.J.O. Perera(Rutherford Appleton Laboratory), Ullrich R. Pfeiffer(Heidelberg University), D.P.F. Prieur(Rutherford Appleton Laboratory), W. Qian(Rutherford Appleton Laboratory), D.L. Rees(University of Birmingham), S. Rieke(Johannes Gutenberg University Mainz), F. Rühr(Heidelberg University), D. P. C. Sankey(Rutherford Appleton Laboratory), U. Schäfer(Johannes Gutenberg University Mainz), K. Schmitt(Heidelberg University), H -C Schultz-Coulon(Heidelberg University), C Schumacher(Heidelberg University), S. B. Silverstein(Stockholm University), R.J. Staley(University of Birmingham), R. Stamen(Heidelberg University), M. C. Stockton(University of Birmingham), S. Tapprogge(Johannes Gutenberg University Mainz), J. P. Thomas(University of Birmingham), T. Trefzger(Johannes Gutenberg University Mainz), P. M. Watkins(University of Birmingham), Alan Watson(University of Birmingham), P. Weber(Heidelberg University), E.-E. Woehrling(University of Birmingham)
Cited by 103Open Access
Abstract
The ATLAS Level-1 Calorimeter Trigger uses reduced-granularity information from all the ATLAS calorimeters to search for high transverse-energy electrons, photons, tau leptons and jets, as well as high missing and total transverse energy. The calorimeter trigger electronics has a fixed latency of about 1 microsecond, using programmable custom-built digital electronics. This paper describes the Calorimeter Trigger hardware, as installed in the ATLAS electronics cavern.
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