CERN Accelerating science

Published Articles

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2018-08-14
06:45
Report on recent activities in HV-CMOS detectors for Mu3e, ATLAS and RD50 / Vilella, E (Liverpool U.) ; Alonso, O (U. Barcelona (main)) ; Buckland, M (Liverpool U.) ; Casanova, R (Barcelona, IFAE) ; Casse, G (Liverpool U.) ; Dieguez, A (Liverpool U.) ; Meng, L (Liverpool U.) ; Peric, I (KIT, Karlsruhe, IPE) ; Powell, S (Liverpool U.) ; Vossebeld, J (Liverpool U.) et al.
Due to their advantages in comparison to other state-of-the-art sensor technologies, High Voltage-Monolithic Active Pixel Sensors (HV-MAPS) are making their way into experiments in particle physics. The Mu3e MuPix tracker represents the first use of HV-MAPS sensors in a particle physics experiment. [...]
2018 - 11 p. - Published in : JINST 13 (2018) C07002
In : The 11th International conference in Position Sensitive Detectors, Milton Keynes, United Kingdom, 3 - 8 Sep 2017, pp.C07002

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2018-08-14
06:45
Principle of the electrically induced Transient Current Technique / Bronuzzi, J (CERN ; Ecole Polytechnique, Lausanne) ; Moll, M (CERN) ; Bouvet, D (Ecole Polytechnique, Lausanne) ; Mapelli, A (CERN) ; Sallese, J M (Ecole Polytechnique, Lausanne)
In the field of detector development for High Energy Physics, the so-called Transient Current Technique (TCT) is used to characterize the electric field profile and the charge trapping inside silicon radiation detectors where particles or photons create electron-hole pairs in the bulk of a semiconductor device, as PiN diodes. In the standard approach, the TCT signal originates from the free carriers generated close to the surface of a silicon detector, by short pulses of light or by alpha particles. [...]
2018 - 17 p. - Published in : JINST 13 (2018) P05021 Fulltext: pdf - PDF; 10.1088_1748-0221_13_05_P05021 - PDF;

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2018-08-14
06:45
Experimental techniques for defect characterization of highly irradiated materials and structures / Pintilie, Ioana (Bucharest, Nat. Inst. Mat. Sci.) ; Nistor, Leona Cristina (Bucharest, Nat. Inst. Mat. Sci.) ; Nistor, Sergiu Vasile (Bucharest, Nat. Inst. Mat. Sci.) ; Joita, Alexandra Camelia (Bucharest, Nat. Inst. Mat. Sci.) /RD50
There are several applications where solid devices are exposed to irradiation. Depending on the operational conditions (type of the particles, temperature, fluence) the physical properties of the exposed device degrades differently, reaching the point of electrical failure in very harsh enviroments. [...]
SISSA, 2017 - 12 p. - Published in : PoS Vertex2016 (2017) 033 Fulltext: PDF; External link: PoS server
In : VERTEX 2016, La Biodola, Italy, 25 - 30 Sep 2016, pp.033

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2018-08-14
06:45
Coupled channel analysis of $\pi^+ \pi^ -\pi^0$, $K^+ K^- \pi^0$ and $K^{\pm} K^0_S \pi^{\mp}$ from $\bar p p$ annihilation at rest in hydrogen targets at three densities / Bargiotti, M (Bologna U. ; INFN, Bologna) ; Bertin, A (Bologna U. ; INFN, Bologna) ; Bruschi, M (Bologna U. ; INFN, Bologna) ; Capponi, M (Bologna U. ; INFN, Bologna) ; De Castro, S (Bologna U. ; INFN, Bologna) ; Fabbri, L (Bologna U. ; INFN, Bologna) ; Faccioli, P (Bologna U. ; INFN, Bologna) ; Galli, D (Bologna U. ; INFN, Bologna) ; Giacobbe, B (Bologna U. ; INFN, Bologna) ; Marconi, U (Bologna U. ; INFN, Bologna) et al. /OBELIX
The $\pi^+ \pi^ -\pi^0$, $K^+ K^- \pi^0$ and $K^\pm K^0 \pi^\mp$ final states produced by $\bar p p$ annihilation at rest at three different hydrogen target densities have been analyzed in the frame of a coupled channel analysis together with $\pi \pi$, $\pi K$ and $K \bar K$ scattering data. The percentages of the different partial waves, the branching ratios and the parameters (masses, widths, $\pi \pi$ and $K \bar K$ partial widths) of all the involved resonances ($J^P = 0^+, 1^-, 2^+$) have been measured. [...]
2002 - 18 p. - Published in : Eur. Phys. J. C 26 (2003) 371-388

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2018-08-14
04:30
Response of narrow cylindrical plasmas to dense charged particle beams / Gorn, A.A. (Novosibirsk State U. ; Novosibirsk, IYF) ; Tuev, P.V. (Novosibirsk State U. ; Novosibirsk, IYF) ; Petrenko, A.V. (Novosibirsk, IYF ; CERN) ; Sosedkin, A.P. (Novosibirsk State U. ; Novosibirsk, IYF) ; Lotov, K.V. (Novosibirsk State U. ; Novosibirsk, IYF)
By combining the linear theory and numerical simulations, we study the response of a radially bounded axisymmetric plasma to relativistic charged particle beams in a wide range of plasma densities. We present analytical expressions for the magnetic field generated in the dense plasma, prove vanishing of the wakefield potential beyond the trajectory of the outermost plasma electron, and follow the wakefield potential change as the plasma density decreases. [...]
arXiv:1804.10744.- 2018-06-06 - Published in : Phys. Plasmas 25 (2018) 063108 Fulltext: PDF;

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2018-08-11
07:06
Diamond as a Particle Detector / Meier, D (CERN) /RD42
This report surveys the detector properties of CVD-diamond samples and CVD-diamond strip detectors with respect to charge collection, spatial resolution and radiation damage. The collected charge on diamond samples and strip detectors to date is at detectors with 4000 electrons. [...]
1996 - 6 p. - Published in : Italian Phys. Soc. Proc.: 52 (1996) , pp. 105 Fulltext: PDF; External link: Fulltext

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2018-08-11
07:06
Experimental constraints on extra dimensions / Mele, S (CERN)
In the last few years the proposed existence of large extra dimensions has changed the landscape of high energy physics, suggesting longly sought answers to fundamental questions like the hierarchy problem. To date, several theoretical models have been proposed and a vigorous experimental effort has started, aimed to hunt for manifestations of extra dimensions in form of deviations from the Newton law in short-range tests of gravity or as new particle interactions at the world’s most powerful colliders. [...]
2003 - 5 p. - Published in : Eur. Phys. J. C 33 (2004) S919-S923

In : EPS International Europhysics Conference on High-Energy Physics, Aachen, Germany, 17 - 23 Jul 2003, pp.S919-S923

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2018-08-11
07:06
Hyperon production in lead-lead interactions at 40-A-GeV/c and 160-A-GeV/c / Helstrup, H (Bergen Coll. Higher Educ.) ; Antinori, F (Padua U. ; INFN, Padua) ; Bacon, P A (Birmingham U.) ; Badalà, A (Catania U. ; INFN, Catania) ; Barbera, R (Catania U. ; INFN, Catania) ; Belogianni, A (Athens U.) ; Bhasin, A (Birmingham U.) ; Bloodworth, I J (Birmingham U.) ; Bombara, M (Kosice, IEF) ; Bruno, G E (Bari U. ; INFN, Bari) et al. /NA57
The NA57 experiment has measured strange baryon and antibaryon production in Pb-Pb collisions at 40 A GeV/c and 160 A GeV/c beam momenta. This presentation covers strangeness enhancement and transverse spectra from the 160 A GeV/c data, and energy dependence of the particle yields. [...]
2004 - 3 p. - Published in : Eur. Phys. J. C 33 (2004) S618-S620

In : EPS International Europhysics Conference on High-Energy Physics, Aachen, Germany, 17 - 23 Jul 2003, pp.S618-S620

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2018-08-11
07:06
Particle identification with the ALICE TOF detector at very high particle multiplicity / Akindinov, A (Moscow, ITEP) ; Alici, A (Bologna U. ; INFN, Bologna) ; Anselmo, F (INFN, Bologna) ; Antonioli, P (INFN, Bologna) ; Baek, Y W (CERN ; World Lab, Lausanne) ; Basile, M (Bologna U. ; INFN, Bologna) ; Cara Romeo, G (INFN, Bologna) ; Cerron Zeballos, E (CERN ; World Lab, Lausanne) ; Cifarelli, L (Bologna U. ; INFN, Bologna) ; Cindolo, F (INFN, Bologna) et al. /ALICE TOF
A procedure developed to achieve particle identification in very high multiplicity conditions using a complex time-of-flight system is illustrated in detail by simulating and studying the performance of the ALICE TOF detector in a realistic scenario of Pb-Pb and p-p interactions at LHC..
2003 - 13 p. - Published in : Eur. Phys. J. CS 32S1 (2004) 165-177

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2018-08-11
07:06
Production and decay of $\eta^\prime$(958) and $\eta$(1440) in $\bar{p} p$ annihilation at rest / Amsler, Claude (U. Zurich (main)) ; Anisovich, A V (U. Bonn (main)) ; Baker, C A (Rutherford) ; Barnett, B M (U. Bonn (main)) ; Batty, C J (Rutherford) ; Blum, P (Karlsruhe U.) ; Braune, K (LMU Munich (main)) ; Credé, V (U. Bonn (main)) ; Crowe, K M (LBNL, Berkeley) ; Doser, M (CERN) et al.
We report on a study of four reactions in $\bar{\mathrm p}{\mathrm p}$ annihilation at rest, of $\bar{\mathrm p}{\mathrm p} \rightarrow 2\pi^ + 2\pi^-\eta$, $\bar{\mathrm p}{\mathrm p} \rightarrow 2\pi^ + 2\pi^- 2\pi^0$, $\bar{\mathrm p}{\mathrm p} \rightarrow 2\pi^ + 2\pi^-\gamma$ and $\bar{\mathrm p}{\mathrm p}\rightarrow 4\pi^0\eta$. The $\eta^\prime$ and the $\eta$(1440) are seen in their decays into $\pi^ + \pi^-\eta$, $\pi^0\pi^0\eta$ and $\pi^ + \pi^-\gamma$ ; no signal is seen in the $4\pi$ invariant mass distribution. [...]
2004 - 8 p. - Published in : Eur. Phys. J. C 33 (2004) 23-30

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