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Article ; Online: Measurement of the Permanent Electric Dipole Moment of the Neutron.

Abel, C / Afach, S / Ayres, N J / Baker, C A / Ban, G / Bison, G / Bodek, K / Bondar, V / Burghoff, M / Chanel, E / Chowdhuri, Z / Chiu, P-J / Clement, B / Crawford, C B / Daum, M / Emmenegger, S / Ferraris-Bouchez, L / Fertl, M / Flaux, P /

Franke, B / Fratangelo, A / Geltenbort, P / Green, K / Griffith, W C / van der Grinten, M / Grujić, Z D / Harris, P G / Hayen, L / Heil, W / Henneck, R / Hélaine, V / Hild, N / Hodge, Z / Horras, M / Iaydjiev, P / Ivanov, S N / Kasprzak, M / Kermaidic, Y / Kirch, K / Knecht, A / Knowles, P / Koch, H-C / Koss, P A / Komposch, S / Kozela, A / Kraft, A / Krempel, J / Kuźniak, M / Lauss, B / Lefort, T / Lemière, Y / Leredde, A / Mohanmurthy, P / Mtchedlishvili, A / Musgrave, M / Naviliat-Cuncic, O / Pais, D / Piegsa, F M / Pierre, E / Pignol, G / Plonka-Spehr, C / Prashanth, P N / Quéméner, G / Rawlik, M / Rebreyend, D / Rienäcker, I / Ries, D / Roccia, S / Rogel, G / Rozpedzik, D / Schnabel, A / Schmidt-Wellenburg, P / Severijns, N / Shiers, D / Tavakoli Dinani, R / Thorne, J A / Virot, R / Voigt, J / Weis, A / Wursten, E / Wyszynski, G / Zejma, J / Zenner, J / Zsigmond, G

Physical review letters

2020 Volume 124, Issue 8, Page(s) 81803

Abstract: We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons. Our measurement stands in the long ... ...

Abstract	We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons. Our measurement stands in the long history of EDM experiments probing physics violating time-reversal invariance. The salient features of this experiment were the use of a ^{199}Hg comagnetometer and an array of optically pumped cesium vapor magnetometers to cancel and correct for magnetic-field changes. The statistical analysis was performed on blinded datasets by two separate groups, while the estimation of systematic effects profited from an unprecedented knowledge of the magnetic field. The measured value of the neutron EDM is d_{n}=(0.0±1.1_{stat}±0.2_{sys})×10^{-26} e.cm.
Language	English
Publishing date	2020-01-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.124.081803
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Book ; Online: Machine Learning based tool for CMS RPC currents quality monitoring

Shumka, E. / Samalan, A. / Tytgat, M. / Sawy, M. El / Alves, G. A. / Marujo, F. / Coelho, E. A. / Da Costa, E. M. / Nogima, H. / Santoro, A. / De Souza, S. Fonseca / Damiao, D. De Jesus / Thiel, M. / Amarilo, K. Mota / Filho, M. Barroso Ferreira / Aleksandrov, A. / Hadjiiska, R. / Iaydjiev, P. / Rodozov, M. /

Shopova, M. / Soultanov, G. / Dimitrov, A. / Litov, L. / Pavlov, B. / Petkov, P. / Petrov, A. / Qian, S. J. / Kou, H. / Liu, Z. -A. / Zhao, J. / Song, J. / Hou, Q. / Diao, W. / Cao, P. / Avila, C. / Barbosa, D. / Cabrera, A. / Florez, A. / Fraga, J. / Reyes, J. / Assran, Y. / Mahmoud, M. A. / Mohammed, Y. / Crotty, I. / Laktineh, I. / Grenier, G. / Gouzevitch, M. / Mirabito, L. / Shchablo, K. / Bagaturia, I. / Lomidze, I. / Tsamalaidze, Z. / Amoozegar, V. / Boghrati, B. / Ebraimi, M. / Najafabadi, M. Mohammadi / Zareian, E. / Abbrescia, M. / Iaselli, G. / Pugliese, G. / Loddo, F. / De Filippis, N. / Aly, R. / Ramos, D. / Elmetenawee, W. / Leszki, S. / Margjeka, I. / Paesani, D. / Benussi, L. / Bianco, S. / Piccolo, D. / Meola, S. / Buontempo, S. / Carnevali, F. / Lista, L. / Paolucci, P. / Fienga, F. / Braghieri, A. / Salvini, P. / Montagna, P. / Riccardi, C. / Vitulo, P. / Asilar, E. / Choi, J. / Kim, T. J. / Choi, S. Y. / Hong, B. / Lee, K. S. / Oh, H. Y. / Goh, J. / Yu, I. / Estrada, C. Uribe / Pedraza, I. / Castilla-Valdez, H. / Sanchez-Hernandez, A. / Fernandez, R. L. / Ramirez-Garcia, M. / Vazquez, E. / Shah, M. A. / Zaganidis, N. / Radi, A. / Hoorani, H. / Muhammad, S. / Ahmad, A. / Asghar, I. / Khan, W. A. / Eysermans, J. / De Araujo, F. Torres Da Silva

2023

Abstract: The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in the hostile environment of the CMS underground cavern on the Large Hadron Collider ... ...

Abstract	The muon system of the CERN Compact Muon Solenoid (CMS) experiment includes more than a thousand Resistive Plate Chambers (RPC). They are gaseous detectors operated in the hostile environment of the CMS underground cavern on the Large Hadron Collider where pp luminosities of up to $2\times 10^{34}$ $\text{cm}^{-2}\text{s}^{-1}$ are routinely achieved. The CMS RPC system performance is constantly monitored and the detector is regularly maintained to ensure stable operation. The main monitorable characteristics are dark current, efficiency for muon detection, noise rate etc. Herein we describe an automated tool for CMS RPC current monitoring which uses Machine Learning techniques. We further elaborate on the dedicated generalized linear model proposed already and add autoencoder models for self-consistent predictions as well as hybrid models to allow for RPC current predictions in a distant future.
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2023-02-06
Publishing country	us
Document type	Book ; Online
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Article: Improved experimental limit on the electric dipole moment of the neutron.

Baker, C A / Doyle, D D / Geltenbort, P / Green, K / van der Grinten, M G D / Harris, P G / Iaydjiev, P / Ivanov, S N / May, D J R / Pendlebury, J M / Richardson, J D / Shiers, D / Smith, K F

Physical review letters

2006 Volume 97, Issue 13, Page(s) 131801

Abstract: An experimental search for an electric dipole moment (EDM) of the neutron has been carried out at the Institut Laue-Langevin, Grenoble. Spurious signals from magnetic-field fluctuations were reduced to insignificance by the use of a cohabiting atomic- ... ...

Abstract	An experimental search for an electric dipole moment (EDM) of the neutron has been carried out at the Institut Laue-Langevin, Grenoble. Spurious signals from magnetic-field fluctuations were reduced to insignificance by the use of a cohabiting atomic-mercury magnetometer. Systematic uncertainties, including geometric-phase-induced false EDMs, have been carefully studied. The results may be interpreted as an upper limit on the neutron EDM of \|d(n)\|< 2.9 x 10(-26)e cm (90% C.L.).
Language	English
Publishing date	2006-09-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.97.131801
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Book ; Online: The Upgrade of the CMS RPC System during the First LHC Long Shutdown

Tytgat, M. / Marinov, A. / Verwilligen, P. / Zaganidis, N. / Aleksandrov, A. / Genchev, V. / Iaydjiev, P. / Rodozov, M. / Shopova, M. / Sultanov, G. / Assran, Y. / Abbrescia, M. / Calabria, C. / Colaleo, A. / Iaselli, G. / Loddo, F. / Maggi, M. / Pugliese, G. / Benussi, L. /

Bianco, S. / Caponero, M. / Colafranceschi, S. / Felli, F. / Piccolo, D. / Saviano, G. / Carrillo, C. / Berzano, U. / Gabusi, M. / Vitulo, P. / Kang, M. / Lee, K. S. / Park, S. K. / Shin, S. / Sharma, A.

2012

Abstract: The CMS muon system includes in both the barrel and endcap region Resistive Plate Chambers (RPC). They mainly serve as trigger detectors and also improve the reconstruction of muon parameters. Over the years, the instantaneous luminosity of the Large ... ...

Abstract	The CMS muon system includes in both the barrel and endcap region Resistive Plate Chambers (RPC). They mainly serve as trigger detectors and also improve the reconstruction of muon parameters. Over the years, the instantaneous luminosity of the Large Hadron Collider gradually increases. During the LHC Phase 1 (~first 10 years of operation) an ultimate luminosity is expected above its design value of 10^34/cm^2/s at 14 TeV. To prepare the machine and also the experiments for this, two long shutdown periods are scheduled for 2013-2014 and 2018-2019. The CMS Collaboration is planning several detector upgrades during these long shutdowns. In particular, the muon detection system should be able to maintain a low-pT threshold for an efficient Level-1 Muon Trigger at high particle rates. One of the measures to ensure this, is to extend the present RPC system with the addition of a 4th layer in both endcap regions. During the first long shutdown, these two new stations will be equipped in the region \|eta\|<1.6 with 144 High Pressure Laminate (HPL) double-gap RPCs operating in avalanche mode, with a similar design as the existing CMS endcap chambers. Here, we present the upgrade plans for the CMS RPC system for the fist long shutdown, including trigger simulation studies for the extended system, and details on the new HPL production, the chamber assembly and the quality control procedures. Comment: 9 pages, 6 figures, presented by M.Tytgat at the XI workshop on Resistive Plate Chambers and Related Detectors (RPC2012), INFN - Laboratori Nazionali di Frascati, February 5-10, 2012
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2012-09-10
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: CMS RPC Background -- Studies and Measurements

Hadjiiska, R. / Samalan, A. / Tytgat, M. / Zaganidis, N. / Alves, G. A. / Marujo, F. / De Araujo, F. Torres Da Silva / Da Costa, E. M. / Damiao, D. De Jesus / Nogima, H. / Santoro, A. / De Souza, S. Fonseca / Aleksandrov, A. / Iaydjiev, P. / Rodozov, M. / Shopova, M. / Sultanov, G. / Bonchev, M. / Dimitrov, A. /

Litov, L. / Pavlov, B. / Petkov, P. / Petrov, A. / Qian, S. J. / Bernal, C. / Cabrera, A. / Fraga, J. / Sarkar, A. / Elsayed, S. / Assran, Y. / Sawy, M. El / Mahmoud, M. A. / Mohammed, Y. / Combaret, C. / Gouzevitch, M. / Grenier, G. / Laktineh, I. / Mirabito, L. / Shchablo, K. / Bagaturia, I. / Lomidze, D. / Lomidze, I. / Bhatnagar, V. / Gupta, R. / Kumari, P. / Singh, J. / Amoozegar, V. / Boghrati, B. / Ebraimi, M. / Ghasemi, R. / Najafabadi, M. Mohammadi / Zareian, E. / Abbrescia, M. / Aly, R. / Elmetenawee, W. / De Filippis, N. / Gelmi, A. / Iaselli, G. / Leszki, S. / Loddo, F. / Margjeka, I. / Pugliese, G. / Ramos, D. / Caponero, M. / Benussi, L. / Bianco, S. / Colafranceschi, S. / Russo, A. / Passamonti, L. / Piccolo, D. / Pierluigi, D. / Saviano, G. / Buontempo, S. / Di Crescenzo, A. / Fienga, F. / De Lellis, G. / Lista, L. / Meola, S. / Paolucci, P. / Braghieri, A. / Salvini, P. / Montagna, P. / Riccardi, C. / Vitulo, P. / Francois, B. / Kim, T. J. / Park, J. / Choi, S. Y. / Hong, B. / Lee, K. S. / Goh, J. / Lee, H. / Eysermans, J. / Estrada, C. Uribe / Pedraza, I. / Castilla-Valdez, H. / Sanchez-Hernandez, A. / Herrera, C. A. Mondragon / Navarro, D. A. Perez / Sanchez, G. A. Ayala / Carrillo, S. / Vazquez, E. / Radi, A. / Ahmad, A. / Asghar, I. / Hoorani, H. / Muhammad, S. / Shah, M. A. / Crotty, I.

2020

Abstract: The expected radiation background in the CMS RPC system has been studied using the MC prediction with the CMS FLUKA simulation of the detector and the cavern. The MC geometry used in the analysis describes very accurately the present RPC system but still ...

Abstract	The expected radiation background in the CMS RPC system has been studied using the MC prediction with the CMS FLUKA simulation of the detector and the cavern. The MC geometry used in the analysis describes very accurately the present RPC system but still does not include the complete description of the RPC upgrade region with pseudorapidity $1.9 < \lvert \eta \rvert < 2.4$. Present results will be updated with the final geometry description, once it is available. The radiation background has been studied in terms of expected particle rates, absorbed dose and fluence. Two High Luminosity LHC (HL-LHC) scenarios have been investigated - after collecting $3000$ and $4000$ fb$^{-1}$. Estimations with safety factor of 3 have been considered, as well. Comment: 6 pages, Conference proceeding for the 2020 Resistive Plate Chambers and Related Detectors. Minor revision of the report, the results remain unchanged. Three new plots are added and some details were explained better
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2020-05-26
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Test of Lorentz invariance with spin precession of ultracold neutrons.

Altarev, I / Baker, C A / Ban, G / Bison, G / Bodek, K / Daum, M / Fierlinger, P / Geltenbort, P / Green, K / van der Grinten, M G D / Gutsmiedl, E / Harris, P G / Heil, W / Henneck, R / Horras, M / Iaydjiev, P / Ivanov, S N / Khomutov, N / Kirch, K /

Kistryn, S / Knecht, A / Knowles, P / Kozela, A / Kuchler, F / Kuźniak, M / Lauer, T / Lauss, B / Lefort, T / Mtchedlishvili, A / Naviliat-Cuncic, O / Pazgalev, A / Pendlebury, J M / Petzoldt, G / Pierre, E / Pignol, G / Quéméner, G / Rebetez, M / Rebreyend, D / Roccia, S / Rogel, G / Severijns, N / Shiers, D / Sobolev, Yu / Weis, A / Zejma, J / Zsigmond, G

Physical review letters

2009 Volume 103, Issue 8, Page(s) 81602

Abstract: A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and 199Hg atoms, is reported. No daily variation of this ratio could be found, from which is set an upper limit on the Lorentz invariance ... ...

Abstract	A clock comparison experiment, analyzing the ratio of spin precession frequencies of stored ultracold neutrons and 199Hg atoms, is reported. No daily variation of this ratio could be found, from which is set an upper limit on the Lorentz invariance violating cosmic anisotropy field b perpendicular < 2 x 10(-20) eV (95% C.L.). This is the first limit for the free neutron. This result is also interpreted as a direct limit on the gravitational dipole moment of the neutron \|gn\| < 0.3 eV/c2 m from a spin-dependent interaction with the Sun. Analyzing the gravitational interaction with the Earth, based on previous data, yields a more stringent limit \|gn\| < 3 x 10(-4) eV/c2 m.
Language	English
Publishing date	2009-08-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.103.081602
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Performance of a Triple-GEM Demonstrator in $pp$ Collisions at the CMS Detector

Abbas, M. / Abbrescia, M. / Abdalla, H. / Abdelalim, A. / AbuZeid, S. / Agapitos, A. / Ahmad, A. / Ahmed, A. / Ahmed, W. / Aimè, C. / Aruta, C. / Asghar, I. / Aspell, P. / Avila, C. / Babbar, J. / Ban, Y. / Band, R. / Bansal, S. / Benussi, L. /

Bhatnagar, V. / Bianco, M. / Bianco, S. / Black, K. / Borgonovi, L. / Bouhali, O. / Braghieri, A. / Braibant, S. / Butalla, S. / Calzaferri, S. / Caponero, M. / Carlson, J. / Cassese, F. / Cavallo, N. / Chauhan, S. S. / Colafranceschi, S. / Colaleo, A. / Garcia, A. Conde / Dalchenko, M. / De Iorio, A. / De Lentdecker, G. / Olio, D. Dell / De Robertis, G. / Dharmaratna, W. / Dildick, S. / Dorney, B. / Erbacher, R. / Fabozzi, F. / Fallavollita, F. / Ferraro, A. / Fiorina, D. / Fontanesi, E. / Franco, M. / Galloni, C. / Giacomelli, P. / Gigli, S. / Gilmore, J. / Gola, M. / Gruchala, M. / Gutierrez, A. / Hadjiiska, R. / Hakkarainen, T. / Hauser, J. / Hoepfner, K. / Hohlmann, M. / Hoorani, H. / Huang, T. / Iaydjiev, P. / Irshad, A. / Iorio, A. / Ivone, F. / Jang, W. / Jaramillo, J. / Juodagalvis, A. / Juska, E. / Kailasapathy, B. / Kamon, T. / Kang, Y. / Karchin, P. / Kaur, A. / Kaur, H. / Keller, H. / Kim, H. / Kim, J. / Kim, S. / Ko, B. / Kumar, A. / Kumar, S. / Lacalamita, N. / Lee, J. S. H. / Levin, A. / Li, Q. / Licciulli, F. / Lista, L. / Liyanage, K. / Loddo, F. / Luhach, M. / Maggi, M. / Maghrbi, Y. / Majumdar, N. / Malagalage, K. / Malhotra, S. / Martiradonna, S. / McLean, C. / Merlin, J. / Misheva, M. / Mocellin, G. / Moureaux, L. / Muhammad, A. / Muhammad, S. / Mukhopadhyay, S. / Naimuddin, M. / Nuzzo, S. / Oliveira, R. / Paolucci, P. / Park, I. C. / Passamonti, L. / Passeggio, G. / Peck, A. / Pellecchia, A. / Perera, N. / Petre, L. / Petrow, H. / Piccolo, D. / Pierluigi, D. / Raffone, G. / Rahmani, M. / Ramirez, F. / Ranieri, A. / Rashevski, G. / Regnery, B. / Ressegotti, M. / Riccardi, C. / Rodozov, M. / Romano, E. / Roskas, C. / Rossi, B. / Rout, P. / Ruiz, J. D. / Russo, A. / Safonov, A. / Sahota, A. K. / Saltzberg, D. / Saviano, G. / Shah, A. / Sharma, A. / Sharma, R. / Sheokand, T. / Shopova, M. / Simone, F. M. / Singh, J. / Sonnadara, U. / Starling, E. / Stone, B. / Sturdy, J. / Sultanov, G. / Szillasi, Z. / Teague, D. / Teyssier, D. / Tuuva, T. / Tytgat, M. / Vai, I. / Vanegas, N. / Venditti, R. / Verwilligen, P. / Vetens, W. / Virdi, A. K. / Vitulo, P. / Wajid, A. / Wang, D. / Wang, K. / Watson, I. J. / Wickramage, N. / Wickramarathna, D. D. C. / Yang, S. / Yang, U. / Yang, Y. / Yongho, J. / Yoon, I. / You, Z. / Yu, I. / Zaleski, S.

2021

Abstract: After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the high $\eta$ region. To improve both the tracking and triggering of muons, ... ...

Abstract	After the Phase-2 high-luminosity upgrade to the Large Hadron Collider (LHC), the collision rate and therefore the background rate will significantly increase, particularly in the high $\eta$ region. To improve both the tracking and triggering of muons, the Compact Muon Solenoid (CMS) Collaboration plans to install triple-layer Gas Electron Multiplier (GEM) detectors in the CMS muon endcaps. Demonstrator GEM detectors were installed in CMS during 2017 to gain operational experience and perform a preliminary investigation of detector performance. We present the results of triple-GEM detector performance studies performed in situ during normal CMS and LHC operations in 2018. The distribution of cluster size and the efficiency to reconstruct high $p_T$ muons in proton--proton collisions are presented as well as the measurement of the environmental background rate to produce hits in the GEM detector. Comment: 10 pages, 5 figures
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2021-07-20
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Performance of Resistive Plate Chambers installed during the first long shutdown of the CMS experiment

Shopova, M. / Aleksandrov, A. / Hadjiiska, R. / Iaydjiev, P. / Sultanov, G. / Rodozov, M. / Stoykova, S. / Assran, Y. / Sayed, A. / Radi, A. / Aly, S. / Singh, G. / Abbrescia, M. / Iaselli, G. / Maggi, M. / Pugliese, G. / Verwilligen, P. / Van Doninck, W. / Colafranceschi, S. /

Sharma, A. / Benussi, L. / Bianco, S. / Piccolo, D. / Primavera, F. / Cimmino, A. / Crucy, S. / Rios, A. A. O. / Tytgat, M. / Zaganidis, N. / Gul, M. / Fagot, A. / Bhatnagar, V. / Singh, J. / Kumari, R. / Mehta, A. / Ahmad, A. / Awan, I. M. / Shahzad, H. / Hoorani, H. / Asghar, M. I. / Muhammad, S. / Ahmed, W. / Shah, M. A. / Cho, S. W. / Choi, S. Y. / Hong, B. / Kang, M. H. / Lee, K. S. / Lim, J. H. / Park, S. K. / Kim, M. S. / Laktineh, I. B. / Lagarde, F. / Gouzevitch, M. / Grenier, G. / Pedraza, I. / Bernardino, S. Carpinteyro / Estrada, C. Uribe / Moreno, S. Carrillo / Valencia, F. Vazquez / Pant, L. M. / Buontempo, S. / Cavallo, N. / Fabozzi, F. / Orso, I. / Lista, L. / Meola, S. / Merola, M. / Paolucci, P. / Thyssen, F. / Lanza, G. / Esposito, M. / Braghieri, A. / Magnani, A. / Riccardi, C. / Salvini, P. / Vai, I. / Vitulo, P. / Montagna, P. / Ban, Y. / Qian, S. J. / Choi, M. / Choi, Y. / Goh, J. / Kim, D. / Dimitrov, A. / Litov, L. / Petkov, P. / Pavlov, B. / Bagaturia, I. / Lomidze, D. / Avila, C. / Cabrera, A. / Sanabria, J. C. / Crotty, I. / Vaitkus, J.

2016

Abstract: The CMS experiment, located at the CERN Large Hadron Collider, has a redundant muon system composed by three different detector technologies: Cathode Strip Chambers (in the forward regions), Drift Tubes (in the central region) and Resistive Plate ... ...

Abstract	The CMS experiment, located at the CERN Large Hadron Collider, has a redundant muon system composed by three different detector technologies: Cathode Strip Chambers (in the forward regions), Drift Tubes (in the central region) and Resistive Plate Chambers (both its central and forward regions). All three are used for muon reconstruction and triggering. During the first long shutdown (LS1) of the LHC (2013-2014) the CMS muon system has been upgraded with 144 newly installed RPCs on the forth forward stations. The new chambers ensure and enhance the muon trigger efficiency in the high luminosity conditions of the LHC Run2. The chambers have been successfully installed and commissioned. The system has been run successfully and experimental data has been collected and analyzed. The performance results of the newly installed RPCs will be presented. Comment: 5 pages, 6 figures, proceeding to The XIII workshop on Resistive Plate Chambers and Related Detectors (RPC2016)
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2016-05-22
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Interstrip Capacitances of the Readout Board used in Large Triple-GEM Detectors for the CMS Muon Upgrade

Bhatnagar, V. / Bianco, M. / Bianco, S. / Black, K. / Borgonovi, L. / Bouhali, O. / Braghieri, A. / Braibant, S. / Butalla, S. / Calzaferri, S. / Caponero, M. / Cassese, F. / Cavallo, N. / Chauhan, S. / Colaleo, A. / Collins, J. / Garcia, A. Conde / Dalchenko, M. / De Iorio, A. / De Lentdecker, G. / Olio, D. Dell / De Robertis, G. / Dharmaratna, W. / Dildick, S. / Dorney, B. / Erbacher, R. / Fabozzi, F. / Fallavollita, F. / Ferraro, A. / Fiorina, D. / Fontanesi, E. / Franco, M. / Galloni, C. / Giacomelli, P. / Gigli, S. / Gilmore, J. / Gola, M. / Gruchala, M. / Gutierrez, A. / Hadjiiska, R. / Hakkarainen, T. / Hauser, J. / Hoepfner, K. / Hohlmann, M. / Hoorani, H. / Huang, T. / Iaydjiev, P. / Irshad, A. / Iorio, A. / Ivone, F. / Jaramillo, J. / Jeong, D. / Jha, V. / Juodagalvis, A. / Juska, E. / Kailasapathy, B. / Kamon, T. / Karchin, P. / Kaur, A. / Kaur, H. / Keller, H. / Kim, H. / Kim, J. / Kumar, A. / Kumar, S. / Kumawat, H. / Lacalamita, N. / Lee, J. S. H. / Levin, A. / Li, Q. / Licciulli, F. / Lista, L. / Liyanage, K. / Loddo, F. / Lohan, M. / Luhach, M. / Maggi, M. / Maghrbi, Y. / Majumdar, N. / Malagalage, K. / Malhotra, S. / Martiradonna, S. / Mccoll, N. / McLean, C. / Merlin, J. / Misheva, M. / Mishra, D. / Mocellin, G. / Moureaux, L. / Muhammad, A. / Muhammad, S. / Mukhopadhyay, S. / Naimuddin, M. / Netrakanti, P. / Nuzzo, S. / Oliveira, R. / Pant, L. / Paolucci, P. / Park, I. C. / Passamonti, L. / Passeggio, G. / Peck, A. / Perera, N. / Petre, L. / Petrow, H. / Piccolo, D. / Pierluigi, D. / Raffone, G. / Rahmani, M. / Ramirez, F. / Ranieri, A. / Rashevski, G. / Ressegotti, M. / Riccardi, C. / Rodozov, M. / Romano, E. / Roskas, C. / Rossi, B. / Rout, P. / Roy, D. / Ruiz, J. D. / Russo, A. / Safonov, A. / Saltzberg, D. / Saviano, G. / Shah, A. / Sharma, A. / Sharma, R. / Shopova, M. / Simone, F. / Singh, J. / Soldani, E. / Sonnadara, U. / Starling, E. / Stone, B. / Sturdy, J. / Sultanov, G. / Szillasi, Z. / Teague, D. / Teyssier, D. / Tuuva, T. / Tytgat, M. / Vanegas, I. Vai N. / Venditti, R. / Verwilligen, P. / Vetens, W. / Virdi, A. / Vitulo, P. / Wajid, A. / Wang, D. / Wang, K. / Watson, I. J. / Weatherwax, J. / Wickramage, N. / Wickramarathna, D. D. C. / Yang, Y. / Yang, U. / Yongho, J. / Yoon, I. / You, Z. / Yu, I. / Zaleski, S.

2020

Abstract: We present analytical calculations, Finite Element Analysis modeling, and physical measurements of the interstrip capacitances for different potential strip geometries and dimensions of the readout boards for the GE2/1 triple-Gas Electron Multiplier ... ...

Abstract	We present analytical calculations, Finite Element Analysis modeling, and physical measurements of the interstrip capacitances for different potential strip geometries and dimensions of the readout boards for the GE2/1 triple-Gas Electron Multiplier detector in the CMS muon system upgrade. The main goal of the study is to find configurations that minimize the interstrip capacitances and consequently maximize the signal-to-noise ratio for the detector. We find agreement at the 1.5--4.8% level between the two methods of calculations and on the average at the 17% level between calculations and measurements. A configuration with halved strip lengths and doubled strip widths results in a measured 27--29% reduction over the original configuration while leaving the total number of strips unchanged. We have now adopted this design modification for all eight module types of the GE2/1 detector and will produce the final detector with this new strip design. Comment: 22 pages, 14 figures
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	600 ; 621
Publishing date	2020-09-20
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: High rate, fast timing Glass RPC for the high {\eta} CMS muon detectors

Lagarde, F. / Gouzevitch, M. / Laktineh, I. / Buridon, V. / Chen, X. / Combaret, C. / Eynard, A. / Germani, L. / Grenier, G. / Mathez, H. / Mirabito, L. / Petrukhin, A. / Steen, A. / Tromeuraa, W. / Wang, Y. / Gongab, A. / Moreau, N. / de la Taille, C. / Dulucqac, F. /

Cimmino, A. / Crucy, S. / Fagot, A. / Gul, M. / Rios, A. A. O. / Tytgat, M. / Zaganidisb, N. / Aly, S. / Assran, Y. / Radi, A. / Sayedc, A. / Singhd, G. / Abbrescia, M. / Iaselli, G. / Maggi, M. / Pugliese, G. / Verwilligene, P. / Van Doninck, W. / Colafranceschi, S. / Sharmag, A. / Benussi, L. / Bianco, S. / Piccolo, D. / Primaverah, F. / Bhatnagar, V. / Kumari, R. / Mehta, A. / Singhi, J. / Ahmad, A. / Ahmed, W. / Asghar, H. M. I. / Awan, I. M. / Hoorani, R. / Muhammad, S. / Shahzad, H. / Shah, M. A. / Cho, S. W. / Choi, S. Y. / Hong, B. / Kang, M. H. / Lee, K. S. / Lim, J. H. / Parkk, S. K. / Kiml, M. S. / Bernardino, S. Carpinteyro / Pedraza, I. / Estradam, C. Uribe / Moreno, S. Carrillo / Valencian, F. Vazquez / Panto, L. M. / Buontempo, S. / Cavallo, N. / Esposito, M. / Fabozzi, F. / Lanza, G. / Orso, I. / Lista, L. / Meola, S. / Merola, M. / Paolucci, P. / Thyssen, F. / Braghieri, A. / Magnani, A. / Montagna, P. / Riccardi, C. / Salvini, P. / Vai, I. / Vituloq, P. / Ban, Y. / Qianr, S. J. / Choi, M. / Choi, Y. / Goh, J. / Kimt, D. / Aleksandrov, A. / Hadjiiska, R. / Iaydjiev, P. / Rodozov, M. / Stoykova, S. / Sultanov, G. / Vutovau, M. / Dimitrov, A. / Litov, L. / Pavlov, B. / Petkovv, P. / Bagaturia, I. / Lomidzew, D. / Avila, C. / Cabrera, A. / Sanabria, J. C. / Crottyy, I. / Vaitkusz, J.

2016

Abstract: The HL-LHC phase is designed to increase by an order of magnitude the amount of data to be collected by the LHC experiments. To achieve this goal in a reasonable time scale the instantaneous luminosity would also increase by an order of magnitude up to $ ... ...

Abstract	The HL-LHC phase is designed to increase by an order of magnitude the amount of data to be collected by the LHC experiments. To achieve this goal in a reasonable time scale the instantaneous luminosity would also increase by an order of magnitude up to $6.10^{34} cm^{-2} s^{-1}$ . The region of the forward muon spectrometer ($\|{\eta}\| > 1.6$) is not equipped with RPC stations. The increase of the expected particles rate up to $2 kHz/cm^{2}$ (including a safety factor 3) motivates the installation of RPC chambers to guarantee redundancy with the CSC chambers already present. The actual RPC technology of CMS cannot sustain the expected background level. The new technology that will be chosen should have a high rate capability and provides a good spatial and timing resolution. A new generation of Glass-RPC (GRPC) using low-resistivity (LR) glass is proposed to equip at least the two most far away of the four high ${\eta}$ muon stations of CMS. First the design of small size prototypes and studies of their performance in high-rate particles flux is presented. Then the proposed designs for large size chambers and their fast-timing electronic readout are examined and preliminary results are provided. Comment: 14 pages, 11 figures, Conference proceeding for the 2016 Resistive Plate Chambers and Related Detectors
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2016-06-04
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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