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CERN Document Server 359 ჩანაწერია ნაპოვნი  1 - 10შემდეგიდასასრული  ჩანაწერთან გადასვლა: ძიებას დასჭირდა 0.59 წამი. 
1.
First observation and study of the K±π0π0μ±ν decay / NA48/2 Collaboration
The NA48/2 experiment at CERN reports the first observation of the K±π0π0μ±ν decay based on a sample of 2437 candidates with 15% background contamination collected in 2003-2004. The decay branching ratio in the kinematic region of the squared dilepton mass above 0.03~GeV2/c4 is measured to be (0.65±0.03)×106. [...]
arXiv:2310.20295; CERN-EP-2023-245.- Geneva : CERN, 2024-03-22 - 16 p. - Published in : JHEP 2403 (2024) 137 Draft (restricted): PDF; Fulltext: 2310.20295 - PDF; CERN-EP-2023-245 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
2.
Latest results on rare kaon decays from the NA48/2 experiment @CERN / NA48/2 Collaboration
The NA48/2 experiment at CERN reports the first observation of the K^± → π^±π^0e^+e^− decay from an exposure of 1.7 × 10^{11} charged kaon decays recorded in 2003–2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region. [...]
2020 - 9 p. - Published in : Int. J. Mod. Phys. A 35 (2020) 2044019
In : 8th International Conference on New Frontiers in Physics (ICNFP 2019), Kolymbari, Crete, Greece, 21 - 29 Aug 2019, pp.2044019
3.
Latest results on rare kaon decays from the NA48/2 experiment at CERN / NA48/2 Collaboration
The NA48/2 experiment at CERN reports the first observation of the K->pi0e+e-decay from an exposure of 1.7x10^11 charged kaon decays recorded in 2003-2004. A sample of 4919candidates with 4.9% background contamination allows the determination of the branching ratioin the full kinematic region. [...]
SISSA, 2021 - 6 p. - Published in : PoS ICHEP2020 (2021) 413 Fulltext: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.413
4.
Precision measurement of the form factors of semileptonic charged kaon decays from NA48/2 / NA48/2 Collaboration
We present a measurement of the charged kaon semileptonic form factors based on 4.3 million K^± → π^0 e^± \nu_e and 2.9 million K^± → π^0 μ^± \nu_μ decays collectedby the NA48/2 experiment. The single results for the semi-electronic and semi-muonic channel have better and similar precision, respectively, than previousmeasurements. [...]
2018 - 4 p. - Published in : (2018) , pp. 315-318
In : 53rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 17 - 24 Mar 2018, pp.315-318
5.
GEM detector performance with innovative micro-TPC readout in high magnetic field / Garzia, I (INFN, Ferrara ; Ferrara U.) ; Alexeev, M (INFN, Turin) ; Amoroso, A (INFN, Turin ; Turin U.) ; Baldini Ferroli, R (Frascati ; Beijing, Inst. High Energy Phys.) ; Bertani, M (Frascati) ; Bettoni, D (INFN, Ferrara) ; Bianchi, F (INFN, Turin ; Turin U.) ; Calcaterra, A (Frascati) ; Canale, N (Ferrara U.) ; Capodiferro, M (Frascati ; INFN, Rome) et al.
Gas detector development is one of the pillars of the research in fundamental physics. Since several years, a new concept of detectors, called Micro Pattern Gas Detector (MPGD), allowed to overcome several problems related to other types of commonly used detectors, like drift chamber and micro strips detectors, reducing the rate of discharges and providing better radiation tolerance. [...]
2018 - 5 p. - Published in : EPJ Web Conf. 170 (2018) 01009 Fulltext: PDF;
In : INTERNATIONAL CONFERENCE on ADVANCEMENTS in NUCLEAR INSTRUMENTATION MEASUREMENT METHODS and their APPLICATIONS, Liege, Belgique, 19 - 23 Jun 2017, pp.01009
6.
The new CGEM Inner Tracker and the new TIGER ASIC for the BES III Experiment / Marcello, Simonetta (INFN, Turin ; Turin U.) ; Alexeev, Maxim (INFN, Turin ; Turin U.) ; Amoroso, Antonio (INFN, Turin ; Turin U.) ; Baldini Ferroli, Rinaldo (Frascati ; Beijing, Inst. High Energy Phys.) ; Bertani, Monica (Frascati) ; Bettoni, Diego (INFN, Ferrara) ; Bianchi, Fabrizio Umberto (INFN, Turin ; Turin U.) ; Calcaterra, Alessandro (Frascati) ; Canale, N (INFN, Ferrara) ; Capodiferro, Manlio (Frascati ; INFN, Rome) et al.
A new detector exploiting the technology of Gas Electron Multipliers is under construction to replace the innermost drift chamber of BESIII experiment, since its efficiency is compromised owing the high luminosity of Beijing Electron Positron Collider. The new inner tracker with a cylindrical shape will deploy several new features. [...]
SISSA, 2018 - 4 p. - Published in : PoS EPS-HEP2017 (2017) 505 Fulltext: PDF; External link: PoS server
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017, pp.505
7.
First observation and study of the K^{\pm} \to \pi^{\pm} \pi^{0} e^{+} e^{-} decay / NA48/2 Collaboration
The NA48/2 experiment at CERN reports the first observation of the K^\pm \to \pi^\pm \pi^0 e^+ e^- decay from an exposure of 1.7 \times 10^{11} charged kaon decays recorded in 2003-2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region, BR(K^\pm \to \pi^\pm \pi^0 e^+ e^-)=(4.24 \pm 0.14)\times10^{-6}. [...]
arXiv:1809.02873; CERN-EP-2018-246.- Geneva : CERN, 2019-01-10 - 10 p. - Published in : Phys. Lett. B 788 (2019) 552-561 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: CERN-EP-2018-246 - PDF; 1809.02873 - PDF;
8.
Test beam results of a Cylindrical GEM detector for the BESIII experiment / Mezzadri, Giulio (INFN, Ferrara ; Ferrara U.) ; Alexeev, Maxim (INFN, Turin) ; Amoroso, Antonio (INFN, Turin ; Turin U.) ; Baldini Ferroli, Rinaldo (Beijing, Inst. High Energy Phys. ; Frascati) ; Bertani, Monica (Frascati) ; Bettoni, Diego (INFN, Ferrara) ; Bianchi, Fabrizio (INFN, Turin ; Turin U.) ; Calcaterra, Alessandro (Frascati) ; Canale, Nicola (INFN, Ferrara) ; Capodiferro, Manlio (Frascati ; INFN, Rome) et al.
Gas detector are very light instrument used in high energy physics to measure the particle properties: position and momentum. Through high electric field is possible to use the Gas Electron Multiplier (GEM) technology to detect the charged particles and to exploit their properties to construct a large area detector, such as the new IT for BESIII. [...]
arXiv:1803.07489.- SISSA, 2019 - 8 p. - Published in : PoS MPGD2017 (2019) 048 Fulltext: 1803.07489 - PDF; PoS(MPGD2017)048 - PDF;
In : 5th International Conference on Micro-Pattern Gas Detectors, Philadelphia, Pennsylvania, Pa, Usa, 22 - 26 May 2017, pp.048
9.
The new cylindrical GEM inner tracker of BESIII / Lavezzi, L. (Beijing, Inst. High Energy Phys. ; INFN, Turin) ; Alexeev, M. (INFN, Turin) ; Amoroso, A. (INFN, Turin ; Turin U.) ; Baldini Ferroli, R. (Beijing, Inst. High Energy Phys. ; Frascati) ; Bertani, M. (Frascati) ; Bettoni, D. (INFN, Ferrara) ; Bianchi, F. (INFN, Turin ; Turin U.) ; Calcaterra, A. (Frascati) ; Canale, N. (INFN, Ferrara) ; Capodiferro, M. (Frascati ; INFN, Rome) et al.
The Cylindrical GEM-Inner Tracker (CGEM-IT) is the upgrade of the internal tracking system of the BESIII experiment. It consists of three layers of cylindrically-shaped triple GEMs, with important innovations with respect to the existing GEM detectors, in order to achieve the best performance with the lowest material budget. [...]
arXiv:1803.07258.- 2018-05-03 - 6 p. - Published in : Int. J. Mod. Phys. Conf. Ser. 46 (2018) 1860077 Fulltext: PDF; Fulltext from Publisher: PDF; External link: Fulltext
In : The 21st Particles & Nuclei International Conference, Beijing, China, 1 - 5 Sep 2017, pp.1860077
10.
Development and Test of a \muTPC Cluster Reconstruction for a Triple GEM Detector in Strong Magnetic Field / Farinelli, R. (INFN, Ferrara ; Ferrara U.) ; Alexeev, M. (INFN, Turin) ; Amoroso, A. (INFN, Turin) ; Bianchi, F. (INFN, Turin) ; Bertani, M. (Beijing, Inst. High Energy Phys.) ; Bettoni, D. (INFN, Ferrara) ; Canale, N. (INFN, Ferrara ; Ferrara U.) ; Calcaterra, A. (Beijing, Inst. High Energy Phys.) ; Carassiti, V. (INFN, Ferrara) ; Cerioni, S. (Beijing, Inst. High Energy Phys.) et al.
Performance of triple GEM prototypes has been evaluated by means of a muon beam at the H4 line of the SPS test area at CERN. The data from two planar prototypes have been reconstructed and analyzed offline with two clusterization methods: the enter of gravity of the charge distribution and the micro Time Projection Chamber (\muTPC). [...]
arXiv:1707.04456.- Oct. 2016 - 4 p. - Published in : 10.1109/NSSMIC.2016.8069914 Preprint: PDF;
In : IEEE Nuclear Science Symposium and Medical Imaging Conference, Strasbourg, France, 29 Oct - 6 Nov 2016, pp.8069914

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