CERN Accelerating science

CERN Document Server 49 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ: 検索にかかった時間: 1.53 秒 
1.
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2023)   13 - 14 Mar 2023  - CERN, Geneva, Switzerland  / Abend, Sven (Leibniz U., Hannover); Allard, Baptiste (LCAR, Toulouse); Alonso, Iván (Balearic Islands U.); Antoniadis, John (Crete U.); Araújo, Henrique (Imperial Coll., London); Arduini, Gianluigi (CERN); Arnold, Aidan S. (SUPA, UK ; Strathclyde U.); Aßmann, Tobias (Ulm U.); Augst, Nadja (DLR, Neustrelitz); Badurina, Leonardo (King's Coll. London ; Caltech) et al.
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves. [...]
2023 - 99 p. arXiv:2310.08183 - Published in : 10.1116/5.0185291
10.1116/5.0185291
2.
Prototype with the basic architecture for the CBM-TOF inner wall tested in close to real conditions / Petriş, M ; Bartoş, D ; Caragheorgheopol, G ; Constantin, F ; Petrovici, M ; Rădulescu, L ; Simion, V ; Deppner, I ; Herrmann, N ; Simon, C et al.
Two dimensional position sensitive timing MGMSRPC prototypes were developed for the low polar angles of the CBM - TOF wall. Four MGMSRPC counters were arranged in a staggered geometrical configuration along the z direction, with overlap along and across the strips, in order to define a basic architecture for the inner zone of the CBM-TOF wall. [...]
2016 - 6 p. - Published in : J. Phys.: Conf. Ser. 724 (2016) 012037 Fulltext: PDF;
In : 21st International School on Nuclear Physics and Applications & International Symposium on Exotic Nuclei, Varna, 7-12 September, pp.012037
3.
High counting rate, two-dimensional position sensitive timing RPC / Petrovici, M. (Bucharest, IFIN-HH) ; Petris, M (Bucharest, IFIN-HH) ; Simion, V (Bucharest, IFIN-HH) ; Bartos, D (Bucharest, IFIN-HH) ; Caragheorgheopol, G (Bucharest, IFIN-HH) ; Deppner, I (Heidelberg U.) ; Adamczewski-Musch, J (Darmstadt, GSI) ; Linev, S (Darmstadt, GSI) ; Williams, MCS (INFN, Bologna) ; Loizeau, P (Heidelberg U.) et al.
Resistive Plate Chambers (RPCs) are widely employed as muon trigger systems at the Large Hadron Collider (LHC) experiments. Their large detector volume and the use of a relatively expensive gas mixture make a closed-loop gas circulation unavoidable. [...]
2012 - 9 p. - Published in : PoS: RPC2012 (2012) , pp. 067 External link: Published version from PoS
In : 11th Workshop on Resistive Plate Chambers and Related Detectors, Frascati (rome), Italy, 5 - 10 Feb 2012, pp.067
4.
Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s} = 7$ TeV / LHCb Collaboration
The production of Upsilon(1S), Upsilon(2S) and Upsilon(3S) mesons in proton-proton collisions at the centre-of-mass energy of sqrt(s)=7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb-1 collected at the Large Hadron Collider. [...]
arXiv:1202.6579; CERN-PH-EP-2012-051; LHCB-PAPER-2011-036; CERN-PH-EP-2012-051; LHCB-PAPER-2011-036.- Geneva : CERN, 2012-06-07 - 22 p. - Published in : Eur. Phys. J. C 72 (2012) 2025 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: DURHAM
5.
Measurement of the ratio of branching fractions ${\cal B}(B^0 \to K^{\ast 0} \gamma)/{\cal B}(B^0_s \to \phi \gamma)$ / LHCb Collaboration
The ratio of branching fractions of the radiative $B$ decays $B^0\to K^{*0}\gamma$ and $B^0_s\to \phi\gamma$ has been measured using $0.37\,$fb$^{-1}$ of $pp$ collisions at a centre of mass energy of $\sqrt{s}=7\,$TeV, collected by the LHCb experiment. The value obtained is \begin{equation} \frac{{\cal B}(B^0\to K^{*0}\gamma)}{{\cal B}(B^0_s\to \phi\gamma)} = 1.12 \pm 0.08^{+0.06}_{-0.04}\phantom{.}^{+0.09}_{-0.08},\nonumber \end{equation} where the first uncertainty is statistical, the second systematic and the third is associated to the ratio of fragmentation fractions $f_s/f_d$. [...]
arXiv:1202.6267; LHCB-PAPER-2011-042; CERN-PH-EP-2012-041; CERN-PH-EP-2012-041; LHCB-PAPER-2011-042.- Geneva : CERN, 2012 - 15 p. - Published in : Phys. Rev. D 85 (2012) 112013 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
6.
Opposite-side flavour tagging of $B$ mesons at the LHCb experiment / LHCb Collaboration
The calibration and performance of the opposite-side flavour tagging algorithms used for the measurements of time-dependent asymmetries at the LHCb experiment are described. The algorithms have been developed using simulated events and optimized and calibrated with B+ -> J/psi K+, B0 -> J/psi K*0 and B0 -> D*- mu+ nu_mu decay modes with 0.37 fb^-1 of data collected in pp collisions at sqrt(s) = 7 TeV during the 2011 physics run. [...]
arXiv:1202.4979; CERN-PH-EP-2012-039; LHCB-PAPER-2011-027; CERN-PH-EP-2012-039; LHCB-PAPER-2011-027.- Geneva : CERN, 2012-06-07 - 22 p. - Published in : Eur. Phys. J. C 72 (2012) 2022 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
7.
Measurement of the $B^\pm$ production cross-section in $pp$ collisions at $\sqrt{s}=7$ TeV / LHCb Collaboration
The production of B+- mesons in proton-proton collisions at sqrt(s)=7 TeV is studied using 35 pb-1 of data collected by the LHCb detector. The B+- mesons are reconstructed exclusively in the B+- -> J/psi K+- mode, with J/psi -> mu+ mu-. [...]
arXiv:1202.4812; CERN-PH-EP-2012-047; LHCB-PAPER-2011-043; CERN-PH-EP-2012-047; LHCB-PAPER-2011-043.- Geneva : CERN, 2012 - 7 p. - Published in : JHEP 04 (2012) 093 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: DURHAM
8.
Search for the $X(4140)$ state in $B^+\to J/\psi\phi K^+$ decays / LHCb Collaboration
A search for the X(4140) state in B+ to J/psi phi K+ decays is performed with 0.37 fb-1 of pp collisions at sqrt(s)=7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4 sigma disagreement with a measurement by CDF. [...]
arXiv:1202.5087; CERN-PH-EP-2012-004; LHCB-PAPER-2011-033; CERN-PH-EP-2012-004; LHCB-PAPER-2011-033.- Geneva : CERN, 2012 - 15 p. - Published in : Phys. Rev. D 85 (2012) 091103 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
9.
Determination of the sign of the decay width difference in the $B^0_s$ system / LHCb Collaboration
The interference between the $K^+K^-$ S-wave and P-wave amplitudes in $B_s \rightarrow J/\psi K^+K^-$ decays with the $K^+K^-$ pairs in the region around the $\phi(1020)$ resonance is used to determine the variation of the difference of the strong phase between these amplitudes as a function of $K^+K^-$ invariant mass. Combined with the results from our $CP$ asymmetry measurements in the $B_s \rightarrow J/\psi \phi$ decays, we conclude that the $B_s$ mass eigenstate that is almost $CP =+1$ is lighter and decays faster than the mass eigenstate that is almost $CP =-1$. [...]
arXiv:1202.4717; CERN-PH-EP-2012-050; LHCB-PAPER-2011-028; CERN-PH-EP-2012-050; LHCB-PAPER-2011-028.- Geneva : CERN, 2012 - 7 p. - Published in : Phys. Rev. Lett. 108 (2012) 241801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
10.
Measurement of the cross-section ratio $\sigma(\chi_{c2})/\sigma(\chi_{c1})$ for prompt $\chi_c$ production at $\sqrt{s}=7$ TeV / LHCb Collaboration
The prompt production of the charmonium $\chi_{c1}$ and $\chi_{c2}$ mesons has been studied in proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=7$ TeV. The $\chi_c$ mesons are identified through their decays $\chi_c\to J/\psi\,\gamma$ with $J/\psi \to \mu^+ \mu^-$ using 36 $\mathrm{pb^{-1}}$ of data collected by the LHCb detector in 2010. [...]
arXiv:1202.1080; LHCB-PAPER-2011-019; CERN-PH-EP-2011-227; LHCB-PAPER-2011-019; CERN-PH-EP-2011-227.- Geneva : CERN, 2013-07-16 - 9 p. - Published in : Phys. Lett. B 714 (2012) 215-223 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: DURHAM

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