CERN Accelerating science

CERN Published Articles

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2018-09-18
09:36
20 gas gaps Multigap Resistive Plate Chamber: Improved rate capability with excellent time resolution / Liu, Z (CERN ; World Lab., Geneva) ; Carnesecchi, F (INFN, Bologna ; U. Bologna, DIFA ; Enrico Fermi Ctr., Rome) ; Rodriguez, O M (World Lab., Geneva) ; Williams, M C S (CERN ; INFN, Bologna ; U. Bologna, DIFA ; Gangneung-Wonju Natl. U.) ; Zichichi, A (CERN ; INFN, Bologna ; U. Bologna, DIFA ; Enrico Fermi Ctr., Rome) ; Zuyeuski, R (World Lab., Geneva ; Enrico Fermi Ctr., Rome)
A 20 gas gaps multigap resistive plate chamber (MRPC) was built with thin (0.28 mm) glass sheets and 0.16 mm gas gap size. This chamber reaches 97% efficiency at 18.4 kV and a time resolution of 32 ps (sigma) at an instantaneous particle flux around 2.5 kHz/cm$^2$. [...]
2018 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 908 (2018) 383-387 Fulltext: PDF;

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2018-09-18
09:36
First Assessment of ENDF/B-VIII and EPICS Atomic Data Libraries / Han, Min Cheol (INFN, Genoa) ; Pia, Maria Grazia (INFN, Genoa) ; Saracco, Paolo (INFN, Genoa) ; Basaglia, Tullio (CERN)
This paper reports an extensive assessment of widely used evaluated atomic data libraries released in ENDF/BVIII. 0 and in EPICS2017 in early 2018. [...]
2018 - Published in : IEEE Trans. Nucl. Sci. 65 (2018) 2268-2278 Fulltext: PDF;

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2018-09-13
04:32
Precise mirror alignment and basic performance of the RICH detector of the NA62 experiment at CERN / Anzivino, G. (Perugia U. ; INFN, Perugia) ; Barbanera, M. (INFN, Perugia) ; Bizzeti, A. (Modena U. ; INFN, Florence) ; Brizioli, F. (Perugia U. ; INFN, Perugia) ; Bucci, F. (INFN, Florence) ; Cassese, A. (INFN, Florence ; Florence U.) ; Cenci, P. (INFN, Perugia) ; Checcucci, B. (INFN, Perugia) ; Ciaranfi, R. (INFN, Florence) ; Duk, V. (INFN, Perugia ; Birmingham U.) et al.
The Ring Imaging Cherenkov detector is crucial for the identification of charged particles in the NA62 experiment at the CERN SPS. The detector commissioning was completed in 2016 by the precise alignment of mirrors using reconstructed tracks. [...]
arXiv:1809.04026.- 2018-07-16 - 13 p. - Published in : JINST 13 (2018) P07012 Fulltext: PDF; Preprint: PDF;

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2018-09-13
04:32
Attenuation effect and neutrino oscillation tomography / Ioannisian, A.N. (Yerevan State U. ; Yerevan Phys. Inst.) ; Smirnov, A. Yu. (Heidelberg, Max Planck Inst.)
Attenuation effect is the effect of weakening of contributions to the oscillation signal from remote structures of matter density profile. The effect is a consequence of integration over the neutrino energy within the energy resolution interval. [...]
arXiv:1705.04252; CERN-TH-2017-079.- 2017-10-13 - 15 p. - Published in : Phys. Rev. D 96 (2017) 083009 Preprint: PDF;

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2018-09-13
04:32
Investigating efficient methods for computing four-quark correlation functions / Abdel-Rehim, Abdou (SUNY, Utica/Rome ; Cyprus Inst.) ; Alexandrou, Constantia (Cyprus Inst. ; Cyprus U.) ; Berlin, Joshua (Frankfurt U.) ; Dalla Brida, Mattia (INFN, Milan Bicocca ; Milan Bicocca U.) ; Finkenrath, Jacob (Cyprus Inst.) ; Wagner, Marc (Frankfurt U.)
We discuss and compare the efficiency of various methods, combinations of point-to-all propagators, stochastic timeslice-to-all propagators, the one-end trick and sequential propagators, to compute two-point correlation functions of two-quark and four-quark interpolating operators of different structure including quark-antiquark type, mesonic molecule type, diquark-antidiquark type and two-meson type. Although we illustrate our methods in the context of the $a_0(980)$, they can be applied for other multi-quark systems, where similar diagrams appear. [...]
arXiv:1701.07228; CERN-TH-2017-112.- 2017-11 - 25 p. - Published in : Comput. Phys. Commun. 220 (2017) 97-121 Preprint: PDF;

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2018-09-11
04:29
Dual-Readout Calorimetry / Lee, Sehwook (Kyungpook Natl. U.) ; Livan, Michele (INFN, Pavia ; Pavia U.) ; Wigmans, Richard (Texas Tech.)
In the past 20 years, dual-readout calorimetry has emerged as a technique for measuring the properties of high-energy hadrons and hadron jets that offers considerable advantages compared with the instruments that are currently used for this purpose in experiments at the high-energy frontier. In this paper, we review the status of this experimental technique and the challenges faced for its further development..
arXiv:1712.05494.- 2018-04-27 - 40 p. - Published in : Rev. Mod. Phys. 90 (2018) 025002 Preprint: PDF;

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2018-09-08
06:01
Status and Prospects for the AWAKE Experiment / Turner, Marlene (CERN) /AWAKE Collaboration
The AWAKE Collaboration is pursuing a demonstration of proton-driven plasma wakefield acceleration of electrons. The AWAKE experiment uses a \SI{400}{GeV/c} proton bunch from the CERN SPS, with a rms bunch length of $6$-\SI{15}{cm}, to drive wakefields in a \SI{10}{m} long rubidium plasma with an electron density of $10^{14}-10^{15}$cm$^{-3}$ [...]
arXiv:1809.01813.- 2018-06 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-TUXGBE1 Fulltext: PDF; Preprint: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUXGBE1

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2018-09-07
06:22
Digital HCAL electronics: Status of production / Drake, Gary (Argonne) ; Repond, Jose (Argonne)
This is a status report of the production of the readout electronics for the Digital Hadron Calorimeter (DHCAL) prototype. The prototype will be equipped with Resistive Plate Chambers (RPCs), read out with 1 Oe 1 cm(2) pads. [...]
2011 - 6 p. - Published in : J. Phys. : Conf. Ser.: 293 (2011) , pp. 012014
Fulltext: PDF;
In : 14th International Conference On Calorimetry In High Energy Physics, Beijing, China, 10 - 14 May 2010, pp.012014

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2018-09-07
06:22
Beam test of a small MICROMEGAS DHCAL prototype / Adloff, C (Annecy, LAPP) ; Blaha, J (Annecy, LAPP) ; Chefdeville, M (Annecy, LAPP) ; Dalmaz, A (Annecy, LAPP) ; Drancourt, C (Annecy, LAPP) ; Espargiliere, A (Annecy, LAPP) ; Gaglione, R (Annecy, LAPP) ; Karyotakis, Y (Annecy, LAPP) ; Prast, J (Annecy, LAPP) ; Vouters, G (Annecy, LAPP)
A sampling hadronic calorimeter with gaps instrumented with thin MICROMEGAS chambers of small pad size and single bit readout is a candidate for an experiment at a future linear collider. Several MICROMEGAS chambers with 1 cm(2) anode pads were fa bricated using the Bulk technology. [...]
2010 - 14 p. - Published in : JINST 5 (2010) P01013 Fulltext: PDF;
In : 1st International Conference on Micro-Pattern Gaseous Detectors, Kolympari, Crete, Greece, 12 - 15 Jun 2009, pp.P01013

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2018-09-06
06:02
DQM4HEP : A generic data quality monitoring for high energy physics / Été, R (Lyon, IPN) ; Pingault, A (Gent U.) ; Mirabito, L (Lyon, IPN)
With increasingly sophisticated experiment, online Data Quality Monitoring (DQM) is of a significant importance for the detector and operation efficiency. Most experiments use their own Event Data Model (EDM) for data taking and built a dedicated monitoring system on top of it. [...]
Oct. - 6 p. - Published in : 10.1109/NSSMIC.2016.8069668
In : IEEE Nuclear Science Symposium and Medical Imaging Conference, Strasbourg, France, 29 Oct - 6 Nov 2016, pp.8069668

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