Proton reconstruction with the TOTEM Roman pot detectors for high-β∗ LHC data

CMS Collaboration; TOTEM Collaboration

doi:10.1088/1748-0221/20/04/P04012

Proton reconstruction with the TOTEM Roman pot detectors for high-β^∗ LHC data

Título traducido de la contribución: Reconstrucción de protones con los detectores de olla romana TOTEM para datos del LHC de alto β∗

CMS Collaboration
, TOTEM Collaboration

Instituto de Alta Investigación

A. Alikhanian Yerevan Institute of Physics
Yerevan State University
Austrian Academy of Sciences
CERN
TU Wien
University of Antwerp
Vrije Universiteit Brussel
Ghent University
Université libre de Bruxelles
Université catholique de Louvain
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
Universidad de Tarapacá
Beihang University
Tsinghua University
University of Chinese Academy of Sciences
CAS - Institute of High Energy Physics
China Center of Advanced Science and Technology World Laboratory
China Spallation Neutron Source
Peking University
South China Normal University
Sun Yat-Sen University
University of Science and Technology of China
Nanjing Normal University
University of Shanghai for Science and Technology
Fudan University
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Escuela Politécnica Nacional
Universidad San Francisco de Quito
Academy of Scientific Research and Technology
Zewail City of Science and Technology
The British University in Egypt
Academy of Sciences of the Republic of Uzbekistan
Al-Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
Université Paris-Saclay
Purdue University
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Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
Universidade do Estado do Amazonas
German Electron Synchrotron
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Indian Institute of Science Education and Research Pune
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Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
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Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

Resumen

Los detectores de potenciómetros romanos TOTEM se utilizan para reconstruir el momento transversal de protones dispersos y estimar la ubicación transversal de la interacción primaria. Este artículo presenta nuevos métodos de reconstrucción de trazas, mediciones de la eficiencia de detección a nivel de banda, comprobaciones cruzadas de la óptica del haz del LHC y técnicas de alineación de detectores, junto con su aplicación en la selección de eventos de colisión de señales. La reconstrucción de trazas se realiza aprovechando la información del cúmulo de impactos mediante un método novedoso que utiliza un área poligonal común en el plano de intersección-pendiente. La técnica se aplica en la alineación relativa de capas de detectores con precisión μm. Se utiliza un método de etiqueta y sonda para extraer las eficiencias de detección a nivel de banda. La alineación del sistema de potenciómetros romanos se realiza mediante ajustes dependientes del tiempo, lo que resulta en una precisión de posición de 3 μm en la dirección horizontal y 60 μm en la vertical. El objetivo es proporcionar una herramienta de reconstrucción óptima para análisis de física exclusiva central basados en el período de toma de datos de alto β* en √(s) = 13 TeV en 2018.

Título traducido de la contribución	Reconstrucción de protones con los detectores de olla romana TOTEM para datos del LHC de alto β∗
Idioma original	Inglés
Número de artículo	P04012
Publicación	Journal of Instrumentation
Volumen	20
N.º	4
DOI	https://doi.org/10.1088/1748-0221/20/04/P04012
Estado	Publicada - 1 abr 2025

Palabras clave

Métodos de calibración y ajuste
Búsqueda de grupos
Reconocimiento de patrones
Rendimiento de detectores de física de alta energía

Acceder al documento

10.1088/1748-0221/20/04/P04012

Otros archivos y enlaces

Enlace a la publicación en Scopus

Citar esto

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title = "Proton reconstruction with the TOTEM Roman pot detectors for high-β∗ LHC data",

abstract = "The TOTEM Roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with μm precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the Roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 μm in the horizontal and 60 μm in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-β∗ data-taking period at √s = 13 TeV in 2018.",

keywords = "Calibration and fitting methods, Cluster finding, Pattern recognition, Performance of High Energy Physics Detectors, M{\'e}todos de calibraci{\'o}n y ajuste, B{\'u}squeda de grupos, Reconocimiento de patrones, Rendimiento de detectores de f{\'i}sica de alta energ{\'i}a",

author = "A. Hayrapetyan and A. Tumasyan and W. Adam and D. Laroze and S. Thakur and \{CMS Collaboration\} and \{TOTEM Collaboration\}",

note = "Publisher Copyright: {\textcopyright} 2025 CERN. Published by IOP Publishing Ltd on behalf of Sissa Medialab.",

year = "2025",

month = apr,

day = "1",

doi = "10.1088/1748-0221/20/04/P04012",

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AU - Hayrapetyan, A.

AU - Tumasyan, A.

AU - Adam, W.

AU - Laroze, D.

AU - Thakur, S.

AU - CMS Collaboration

AU - TOTEM Collaboration

PY - 2025/4/1

Y1 - 2025/4/1

N2 - The TOTEM Roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with μm precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the Roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 μm in the horizontal and 60 μm in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-β∗ data-taking period at √s = 13 TeV in 2018.

AB - The TOTEM Roman pot detectors are used to reconstruct the transverse momentum of scattered protons and to estimate the transverse location of the primary interaction. This paper presents new methods of track reconstruction, measurements of strip-level detection efficiencies, cross-checks of the LHC beam optics, and detector alignment techniques, along with their application in the selection of signal collision events. The track reconstruction is performed by exploiting hit cluster information through a novel method using a common polygonal area in the intercept-slope plane. The technique is applied in the relative alignment of detector layers with μm precision. A tag-and-probe method is used to extract strip-level detection efficiencies. The alignment of the Roman pot system is performed through time-dependent adjustments, resulting in a position accuracy of 3 μm in the horizontal and 60 μm in the vertical directions. The goal is to provide an optimal reconstruction tool for central exclusive physics analyses based on the high-β∗ data-taking period at √s = 13 TeV in 2018.

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KW - Pattern recognition

KW - Performance of High Energy Physics Detectors

KW - Métodos de calibración y ajuste

KW - Búsqueda de grupos

KW - Reconocimiento de patrones

KW - Rendimiento de detectores de física de alta energía

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