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1.
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Latest results from the TORCH R&D; Project
/ Gys, T (CERN) ; Brook, N (Bath U.) ; Castillo García, L (Oxford U.) ; Cussans, D (Bristol U.) ; Föhl, K (CERN) ; Forty, R (CERN) ; Frei, C (CERN) ; Gao, R (Oxford U.) ; Harnew, N (Oxford U.) ; Piedigrossi, D (CERN) et al.
TORCH (Timing Of internally Reflected CHerenkov photons) is a precision time-of-flight detector for particle identification at low momentum. It uses Cherenkov photons produced by charged particles passing through a quartz radiator plate. [...]
2018 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 912 (2018) 53-56
In : New Developments in Photodetection 2017, Tours, France, 3 - 7 Jul 2017, pp.53-56
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TORCH: A Large-Area Detector for High Resolution Time-of-flight
/ Forty, R (CERN) ; Brook, N (Bath U.) ; Castillo García, L (Oxford U.) ; Cussans, D (Bristol U.) ; Föhl, K (CERN) ; Frei, C (CERN) ; Gao, R (Oxford U.) ; Gys, T (CERN) ; Harnew, N (Oxford U.) ; Piedigrossi, D (CERN) et al.
TORCH is a novel detector concept for high resolution time-of-flight measurement over large areas, which has been developed for application in a future upgrade of the LHCb experiment. The status of the R&D; project is presented, including the development of suitable fast photon detectors, and test-beam studies of prototypes..
2018 - 6 p.
- Published in : Springer Proc. Phys. 212 (2018) 257-262
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.257-262
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3.
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The PANDA Barrel DIRC
/ PANDA Cherenkov Group Collaboration
The PANDA experiment at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR) near GSI, Darmstadt, Germany will address fundamental questions of hadron physics. Excellent Particle Identification (PID) over a large range of solid angles and particle momenta will be essential to meet the objectives of the rich physics program. [...]
arXiv:1803.10642.-
2018-03-05 - 8 p.
- Published in : JINST 13 (2018) C03004
Preprint: PDF;
In : Workshop on Fast Cherenkov Detectors : Photon detection, DIRC design and DAQ, Giessen, Germany, 7 - 9 Aug 2017, pp.C03004
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4.
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The PANDA DIRC detectors at FAIR
/ Schwarz, C. (Darmstadt, GSI) ; Ali, A. (Darmstadt, GSI ; Goethe U., Frankfurt (main)) ; Belias, A. (Darmstadt, GSI) ; Dzhygadlo, R. (Darmstadt, GSI) ; Gerhardt, A. (Darmstadt, GSI) ; Götzen, K. (Darmstadt, GSI) ; Kalicy, G. (Darmstadt, GSI) ; Krebs, M. (Darmstadt, GSI ; Goethe U., Frankfurt (main)) ; Lehmann, D. (Darmstadt, GSI) ; Nerling, F. (Darmstadt, GSI ; Goethe U., Frankfurt (main)) et al.
The PANDA detector at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR) addresses fundamental questions of hadron physics. An excellent hadronic particle identification (PID) will be accomplished by two DIRC (Detection of Internally Reflected Cherenkov light) counters in the target spectrometer. [...]
arXiv:1707.09269.-
2017-07-04 - 8 p.
- Published in : JINST 12 (2017) C07006
Preprint: PDF;
In : Instrumentation for Colliding Beam Physics, Novosibirsk, Russia, 27 Feb - 3 Mar 2017, pp.C07006
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5.
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Testbeam studies of a TORCH prototype detector
/ Brook, Nicholas (Bristol U.) ; Castillo García, Lucia (CERN) ; Conneely, Thomas M. (Unlisted, UK) ; Cussans, David (Bristol U.) ; van Dijk, Maarten W.U. (Oxford U.) ; Föhl, Klaus (CERN) ; Forty, Roger (CERN) ; Frei, Christoph (CERN) ; Gao, Rui (Oxford U.) ; Gys, Thierry (CERN) et al.
TORCH is a novel time-of-flight detector that has been developed to provide charged-particle identification between 2 and 10 GeV/c momentum. TORCH combines arrival times from multiple Cherenkov photons produced within a 10 mm-thick quartz radiator plate, to achieve a 15 ps time-of-flight resolution per incident particle. [...]
arXiv:1805.04849.-
2018-11-11 - 13 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 908 (2018) 256-268
Fulltext: 10.1016_j.nima.2018.07.023 - PDF; arXiv:1805.04849 - PDF; 1-s2.0-S0168900218308556-main - PDF;
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6.
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Status of the TORCH time-of-flight detector
/ Harnew, N (Oxford U.) ; Brook, N H (Bath U. ; Bristol U.) ; García, L Castillo (Oxford U.) ; Cussans, D (Bristol U.) ; van Dijk, M W U (Oxford U. ; CERN) ; Föhl, K (CERN) ; Forty, R (CERN) ; Frei, C (CERN) ; Gao, R (Oxford U.) ; Gys, T (CERN) et al.
The TORCH time-of-flight detector is designed for large-area coverage, up to 30 m2, to provide particle identification between 2–10 GeV/c momentum over a flight distance of 10 m. The arrival times from Cherenkov photons produced within a quartz radiator plate of 10 mm thickness are combined to achieve a 15 ps time-of-flight resolution per incident particle. [...]
2017 - 11 p.
- Published in : JINST 12 (2017) C11026
In : International Workshop on Fast Cherenkov Detectors : Photon detection, DIRC design and DAQ, Giessen, Germany, 11 - 13 Nov 2015, pp.C11026
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7.
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8.
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Measurement of the ratio of branching fractions $\mathcal{B}(B_c^+\,\to\,J/\psi\tau^+\nu_\tau)$/$\mathcal{B}(B_c^+\,\to\,J/\psi\mu^+\nu_\mu)$
/ LHCb Collaboration
A measurement is reported of the ratio of branching fractions $\mathcal{R}(J/\psi)=\mathcal{B}(B_c^+\,\to\,J/\psi\tau^+\nu_\tau)/\mathcal{B}(B_c^+\,\to\,J/\psi \mu^+\nu_\mu)$, where the $\tau^+$ lepton is identified in the decay mode $\tau^+\,\to\,\mu^+\nu_\mu\overline{\nu}_\tau$. This analysis uses a sample of proton-proton collision data corresponding to 3.0$\mathrm{\,fb}^{-1}$ of integrated luminosity recorded with the LHCb experiment at center-of-mass energies $7\,\mathrm{TeV}$ and $8\,\mathrm{TeV}$. [...]
arXiv:1711.05623; LHCB-PAPER-2017-035; CERN-EP-2017-275; LHCB-PAPER-2017-035.-
Geneva : CERN, 2018-03-27 - 10 p.
- Published in : Phys. Rev. Lett. 120 (2018) 121801
Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Supplementary information: ZIP; External link: Figures, tables and other information
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10.
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First observation of $B^{+} \to D_s^{+}K^{+}K^{-}$ decays and a search for $B^{+} \to D_s^{+}\phi$ decays
/ LHCb Collaboration
A search for $B^{+} \to D_s^{+}K^{+}K^{-}$ decays is performed using $pp$ collision data corresponding to an integrated luminosity of 4.8 fb$^{-1}$, collected at centre-of-mass energies of 7, 8 and 13$\,$TeV with the LHCb experiment. A significant signal is observed for the first time and the branching fraction is determined to be \begin{equation*} \mathcal{B}(B^{+} \to D_s^{+}K^{+}K^{-} ) = (7.1 \pm 0.5 \pm 0.6 \pm 0.7) \times 10^{-6}, \end{equation*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fraction of the normalisation mode $B^{+} \to D_s^{+} \overline{\kern -0.2em D}^{0}$. [...]
arXiv:1711.05637; LHCB-PAPER-2017-032; CERN-EP-2017-289; LHCB-PAPER-2017-032.-
Geneva : CERN, 2018-01-26 - 22 p.
- Published in : JHEP 01 (2018) 131
Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information
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