The Level-0 calorimetric trigger of the NA62 experiment

Ammendola, Roberto; Barbanera, M.; Bizzarri, M.; Bonaiuto, V.; Ceccucci, A.; Checcucci, B.; Simone, N. De; Fantechi, R.; Federici, L.; Fucci, A.; Lupi, M.; Paoluzzi, G.; Papi, A.; Piccini, M.; Ryjov, V.; Salamon, A.; Salina, G.; Sargeni, F.; Venditti, S.

doi:10.1088/1748-0221/11/02/c02084

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The main building block of the Concentrator board is a Dual Port RAM (DPRAM) used as a circular buffer [66]: it contains a time-binned reconstructed cluster histogram, with each memory cell corresponding to a time interval and the stored value representing a reconstructed cluster (with its associated energy, position and time). The bin size can be adjusted, with a minimum value of 6.25 ns.…”

Section: Jinst 12 P05025mentioning

confidence: 99%

The beam and detector of the NA62 experiment at CERN

et al. 2017

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NA62 is a fixed-target experiment at the CERN SPS dedicated to measurements of rare kaon decays. Such measurements, like the branching fraction of the K+ → π+ ν ν̄ decay, have the potential to bring significant insights into new physics processes when comparison is made with precise theoretical predictions. For this purpose, innovative techniques have been developed, in particular, in the domain of low-mass tracking devices. Detector construction spanned several years from 2009 to 2014. The collaboration started detector commissioning in 2014 and will collect data until the end of 2018. The beam line and detector components are described together with their early performance obtained from 2014 and 2015 data.

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Section: Jinst 12 P05025mentioning

confidence: 99%

The beam and detector of the NA62 experiment at CERN

et al. 2017

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“…Reconstructed clusters from all these electromagnetic and hadronic calorimeters are put together in the last stage of the trigger processor (Concentrator board) which performs trigger algorithms based on complex energy and cluster multiplicity combinations [13,14] and sends trigger decision the the NA62 L0 Trigger Processor [15].…”

Section: Pos(eps-hep2017)517mentioning

confidence: 99%

The NA62 Calorimeter Level 0 Trigger Operation and Performances

Salamon¹,

Bizzarri²,

Piandani³

et al. 2017

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017)

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The NA62 experiment at the CERN SPS aims to measure the branching ratio of the very rare kaon decay K + → π + νν, collecting ∼ 100 events with a 10% background to make a stringent test of the Standard Model. The calorimeter level 0 trigger is used to suppress one of the main backgrounds, the K + → π + π 0 decay, and to select events with a π + in the final state. The calorimeter level 0 trigger identifies clusters in the electromagnetic and hadronic calorimeters. It prepares timeordered lists of reconstructed clusters together with the arrival time, position, and energy measurements of each cluster. It also provides trigger decisions based on complex combinations of energy and cluster multiplicity. The main parameters of the trigger processor are the high design hit rate (30 MHz) and the required single cluster time resolution (1.5 ns). The calorimeter trigger processor is a parallel system composed of 37 boards, 111 mezzanines and 221 high-performance programmable devices housed in three 9U crates. The design, operation and performances of the calorimeter level 0 trigger are presented.

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“…The Calorimetric Level 0 Trigger [6][7][8][9] (L0Calo) is used to suppress one of the main backgrounds, the K + → π + π 0 decay, and to select events with a π + in the final state. L0Calo identifies clusters in the electromagnetic (Liquid Krypton -LKr, Intermediate-Ring Calorimeter -IRC, and the Small-Angle Calorimeter -SAC) and hadronic (two Muon Veto -MUV 1 and 2) calorimeters.…”

Section: Introductionmentioning

confidence: 99%

The NA62 level 0 calorimetric trigger fast readout implementation, commissioning and data taking performances

et al. 2023

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The NA62 experiment at the CERN SPS aims to measure the branching ratio of the very rare kaon decay K + → π + ν ν ¯ . The Calorimetric Level 0 Trigger identifies clusters in the electromagnetic and hadronic calorimeters. Along with the trigger data sent to the L0 Trigger Processor, readout data is collected to be sent to the L1 software trigger. In this work we present the novel implementation of the readout data collection and forwarding system in the multiple layers of the calorimetric trigger structure. We will also present the commissioning of the system and the performance evaluation on current data taking.

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The Level-0 calorimetric trigger of the NA62 experiment

Cited by 3 publications

References 7 publications

The beam and detector of the NA62 experiment at CERN

The beam and detector of the NA62 experiment at CERN

The NA62 Calorimeter Level 0 Trigger Operation and Performances

The NA62 level 0 calorimetric trigger fast readout implementation, commissioning and data taking performances

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