CERN Accelerating science

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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
17:30
Archive
Published in: CERN Courier Volume 58, Number 7, September 2018
Geneva : CERN, 2018

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2018-09-07
17:30
Recruitment
Published in: CERN Courier Volume 58, Number 7, September 2018
Geneva : CERN, 2018

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2018-09-07
17:30
Bookshelf
Published in: CERN Courier Volume 58, Number 7, September 2018
Geneva : CERN, 2018

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