CERN Accelerating science

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新增:
2018-08-13
22:01
Fine-grained calorimeters for experiments at CLIC and FCC-ee / Viazlo, Oleksandr (CERN)
We present optimisation studies for detectors being designed for future $e^+e^−$ colliders such as CLIC and FCC-ee, using particle-flow calorimetry. Surrounding a large silicon tracker volume, a very fine-grained ECAL is envisaged, with 40 Si-W layers and a lateral segmentation of $5\times5~$mm$^2$. [...]
CLICdp-Conf-2018-005.- Geneva : CERN, 2018 - 7. Fulltext: PDF;
In : 18th International Conference on Calorimetry in Particle Physics, Eugene, Usa, 21 - 25 May 2018

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2018-08-13
16:34
Measurement of the azimuthal anisotropy of charged particles produced in $\sqrt{s_\mathrm{NN}} = 5.02$ TeV Pb+Pb collisions with the ATLAS detector
Measurements of the azimuthal anisotropy in lead-lead collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV are presented using a data sample corresponding to 0.49 $\mathrm{nb}^{-1}$ integrated luminosity collected by the ATLAS experiment at the LHC in 2015. [...]
CERN-EP-2018-194.
- 2018.
Fulltext - Previous draft version

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2018-08-13
16:27
Search for heavy charged long-lived particles in proton-proton collisions at $\sqrt{s} = 13$ TeV using an ionisation measurement with the ATLAS detector
This Letter presents a search for heavy charged long-lived particles produced in proton--proton collisions at $\sqrt{s} = 13$ TeV at the LHC using a data sample corresponding to an integrated luminosity of 36.1 fb$^{-1}$ collected by the ATLAS experiment in 2015 and 2016. [...]
CERN-EP-2018-198.
- 2018.
Fulltext - Previous draft version

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2018-08-13
16:01
Search for charged Higgs bosons decaying into top and bottom quarks at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for charged Higgs bosons heavier than the top quark and decaying via $H^+ \to tb$ is presented. [...]
CERN-EP-2018-168.
- 2018.
Fulltext - Previous draft version

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2018-08-11
20:22
Search for an $L_{\mu}-L_{\tau}$ gauge boson using $\mathrm{Z}\to4\mu$ events in proton-proton collisions at $\sqrt{s} = $ 13 TeV
A search for a narrow Z' gauge boson with a mass between 5 and 70 GeV resulting from an $L_{\mu}-L_{\tau}$ U(1) local gauge symmetry is reported. [...]
CERN-EP-2018-208 ; CMS-EXO-18-008-003.
- 2018.
Additional information for the analysis - CMS AuthorList - Fulltext

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2018-08-11
04:39
A clockwork solution to the flavor puzzle / Alonso, Rodrigo (CERN) ; Carmona, Adrian (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Dillon, Barry M. (Plymouth U.) ; Kamenik, Jernej F. (Stefan Inst., Ljubljana ; Ljubljana U.) ; Martin Camalich, Jorge (CERN ; IAC, La Laguna) ; Zupan, Jure (Cincinnati U.)
We introduce a set of clockwork models of flavor that can naturally explain the large hierarchies of the Standard Model quark masses and mixing angles. [...]
arXiv:1807.09792 ; CERN-TH-2018-17 ; MITP/18-066.
- 51 p.
Fulltext

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2018-08-11
04:38
Radiation hardness of small-pitch 3D pixel sensors up to a fluence of $3\times10^{16}$ n$_{\mathrm{eq}}$/cm$^2$ / Lange, J. (Barcelona, IFAE) ; Giannini, G. (Barcelona, IFAE) ; Grinstein, S. (Barcelona, IFAE ; ICREA, Barcelona) ; Manna, M. (Barcelona, IFAE ; Barcelona, Inst. Microelectron.) ; Pellegrini, G. (Barcelona, Inst. Microelectron.) ; Quirion, D. (Barcelona, Inst. Microelectron.) ; Terzo, S. (Barcelona, IFAE) ; Furelos, D. Vázquez (Barcelona, IFAE)
Small-pitch 3D silicon pixel detectors have been investigated as radiation-hard candidates for the innermost layers of the HL-LHC pixel detector upgrades. [...]
arXiv:1805.10208.
- 21 p.
Fulltext

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2018-08-11
04:37
Comparison of 35 and 50 ${\mu}$m thin HPK UFSD after neutron irradiation up to $6•10^15$ $neq/cm^2$ / Zhao, Y. (UC, Santa Cruz, Inst. Part. Phys.) ; Cartiglia, N. (UC, Santa Cruz, Inst. Part. Phys.) ; Estrada, E. (UC, Santa Cruz, Inst. Part. Phys.) ; Galloway, Z. (UC, Santa Cruz, Inst. Part. Phys.) ; Gee, C. (UC, Santa Cruz, Inst. Part. Phys.) ; Goto, A. (UC, Santa Cruz, Inst. Part. Phys.) ; Luce, Z. (UC, Santa Cruz, Inst. Part. Phys.) ; Mazza, S.M. (UC, Santa Cruz, Inst. Part. Phys.) ; Mckinney-Martinez, F. (UC, Santa Cruz, Inst. Part. Phys.) ; Rodriguez, R. (UC, Santa Cruz, Inst. Part. Phys.) et al.
We report results from the testing of 35 {\mu}m thick Ultra-Fast Silicon Detectors (UFSD produced by Hamamatsu Photonics (HPK), Japan and the comparison of these new results to data reported before on 50 {\mu}m thick UFSD produced by HPK. [...]
arXiv:1803.02690.
- 9 p.
Fulltext

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2018-08-10
12:00
Measurements of $\pi^\pm$, $K^\pm$ and proton yields from the surface of the T2K replica target for incoming 31 GeV/$c$ protons with the NA61/SHINE spectrometer at the CERN SPS / Abgrall, N (NA61/SHINE Collaboration)
Measurements of the $\pi^\pm$, $K^\pm$, and proton double differential yields emitted from the surface of the 90 cm-long carbon target (T2K replica) were performed for the incoming 31 GeV/$c$ protons with the NA61/SHINE spectrometer at the CERN SPS using data collected during 2010 run. The double differential $\pi^\pm$ yields were measured with increased precision compared to the previously published NA61/SHINE results, while the $K^\pm$ and proton yields were obtained for the first time. [...]
CERN-EP-2018-222.- Geneva : CERN, 2018 - 55. Draft (restricted): PDF; Fulltext: PDF;

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2018-08-10
04:13
Measurement of the differential cross sections for $W$-boson production in association with jets in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV / CDF Collaboration
This paper presents a study of the production of a single $W$ boson in association with one or more jets in proton-antiproton collisions at $\sqrt{s}=1.96$ TeV, using the entire data set collected in 2001-2011 by the Collider Detector at Fermilab at the Tevatron, which corresponds to an integrated luminosity of $9.0$ fb$^{-1}$. [...]
arXiv:1808.02335 ; FERMILAB-PUB-18-371-E.
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