Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

Detalles Bibliográficos
Parent link:	Journal of Instrumentation Vol. 15, iss. 10.— 2020.— [P10002, 44 p.]
Autor Corporativo:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Otros Autores:	Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich, Okhotnikov V. V. Vitaly Vladimirovich, Sukhikh L. G. Leonid Grigorievich
Sumario:	Title screen A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015–2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.
Lenguaje:	inglés
Publicado:	2020
Materias:	электронный ресурс труды учёных ТПУ large detector-systems performance pattern recognition cluster finding calibration and fitting methods детекторные устройства распознавание образов кластеры калибровка
Acceso en línea:	http://earchive.tpu.ru/handle/11683/132650 https://doi.org/10.1088/1748-0221/15/10/P10002
Formato:	Electrónico Capítulo de libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664745

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