The Analytical Method algorithm for trigger primitives generation at the LHC Drift Tubes detector
Abstract
The Compact Muon Solenoid (CMS) experiment prepares its Phase-2 upgrade for the high-luminosity era of the LHC operation (HL-LHC). Due to the increase of occupancy, trigger latency and rates, the full electronics of the CMS Drift Tube (DT) chambers will need to be replaced. In the new design, the time bin for the digitisation of the chamber signals will be of around 1~ns, and the totality of the signals will be forwarded asynchronously to the service cavern at full resolution. The new backend system will be in charge of building the trigger primitives of each chamber. These trigger primitives contain the information at chamber level about the muon candidates position, direction, and collision time, and are used as input in the L1 CMS trigger. The added functionalities will improve the robustness of the system against ageing. An algorithm based on analytical solutions for reconstructing the DT trigger primitives, called Analytical Method, has been implemented both as a software C++ emulator and in firmware. Its performance has been estimated using the software emulator with simulated and real data samples, and through hardware implementation tests. Measured efficiencies are 96 to 98\% for all qualities and time and spatial resolutions are close to the ultimate performance of the DT chambers. A prototype chain of the HL-LHC electronics using the Analytical Method for trigger primitive generation has been installed during Long Shutdown 2 of the LHC and operated in CMS cosmic data taking campaigns in 2020 and 2021. Results from this validation step, the so-called Slice Test, are presented.
Keywords
Cite
@article{arxiv.2302.01666,
title = {The Analytical Method algorithm for trigger primitives generation at the LHC Drift Tubes detector},
author = {G. Abbiendi and J. Alcaraz Maestre and A. Álvarez Fernández and B. Álvarez González and N. Amapane and I. Bachiller and L. Barcellan and C. Baldanza and C. Battilana and M. Bellato and G. Bencze and M. Benettoni and N. Beni and A. Benvenuti and A. Bergnoli and L. C. Blanco Ramos and L. Borgonovi and A. Bragagnolo and V. Cafaro and A. Calderon and E. Calvo and R. Carlin and C. A. Carrillo Montoya and F. R. Cavallo and J. M. Cela Ruiz and M. Cepeda and M. Cerrada and P. Checchia and L. Ciano and N. Colino and D. Corti and G. Cotto and A. Crupano and S. Cuadrado Calzada and J. Cuevas and M. Cuffiani and G. M. Dallavalle and D. Dattola and B. De La Cruz and C. I. de Lara Rodríguez and P. De Remigis and C. Erice Cid and D. Eliseev and F. Fabbri and A. Fanfani and D. Fasanella and C. F. Bedoya and J. F. de Trocóniz and D. Fernández del Val and J. Fernández Menéndez and J. P. Fernández Ramos and S. Folgueras and M. C. Fouz and D. Francia Ferrero and J. García Romero and F. Gasparini and U. Gasparini and V. Giordano and F. Gonella and I. González Caballero and J. R. González Fernández and O. González López and S. Goy López and A. Gozzelino and A. Griggio and G. Grosso and C. Guandalini and L. Guiducci and M. Gulmini and T. Hebbeker and K. Hoepfner and R. Isocrate and M. I. Josa and B. Kiani and J. León Holgado and S. Lo Meo and E. Lusiani and L. Lunerti and S. Marcellini and M. Margoni and C. Mariotti and I. Martín Martín and J. J. Martínez Morales and S. Maselli and G. Masetti and A. T. Meneguzzo and M. Merschmeyer and M. Migliorini and L. Modenese and J. Molnar and F. Montecassiano and J. Mora Martínez and D. Moran and S. Mukherjee and J. J. Navarrete and F. Navarria and A. Navarro Tobar and F. Nowotny and E. Palencia Cortezón and M. Passaseo and J. Pazzini and M. Pelliccioni and A. Perrotta and B. Philipps and J. Piedra Gomez and F. Primavera and J. Puerta Pelayo and J. C. Puras Sánchez and C. Ramón Álvarez and I. Redondo and D. D. Redondo Ferrero and H. Reithler and R. Reyes-Almanza and V. Rodríguez Bouza and P. Ronchese and A. M. Rossi and R. Rossin and F. Rotondo and T. Rovelli and S. Sánchez Cruz and S. Sánchez Navas and J. Sastre and A. Sharma and F. Simonetto and A. Soto Rodríguez and A. Staiano and Z. Szillasi and D. F. Teyssier and N. Toniolo and G. Torromeo and A. Trapote and N. Trevisani and A. Triossi and D. Trocino and B. Ujvari and G. Umoret and L. Urda Gómez and B. Uwe and S. Ventura and C. Vico Villalba and S. Wiedenbeck and M. Zanetti and F. P. Zantis and G. Zilizi and P. Zotto and A. Zucchetta},
journal= {arXiv preprint arXiv:2302.01666},
year = {2023}
}
Comments
16 pages, 11 figures