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Precise measurement of the CKM angle $\gamma$ with a novel approach
/ LHCb Collaboration
A measurement of the CKM angle $\gamma$ is performed by applying a novel, unbinned, model-independent approach to datasets of electron-positron collisions collected by the BESIII experiment and proton-proton collisions by the LHCb experiment, corresponding to integrated luminosities of 8 fb$^{-1}$ and 9 fb$^{-1}$, respectively. The $C\!P$-violating phase $\gamma$ is determined from ${B^{\pm}\rightarrow D(\rightarrow K_{\rm S}^{0} h^{\prime+}h^{\prime-}) h^{\pm}}$ decays in LHCb data, where $h^{(\prime)}$ is either a pion or kaon, while the corresponding strong-phase parameters are measured using doubly tagged ${D\rightarrow K_{\rm S/L}^0 h^{\prime+} h^{\prime-}}$ decays in the quantum-correlated $D\overline{D}$ system present in BESIII data. [...]
arXiv:2604.05712; LHCb-PAPER-2025-064; CERN-EP-2026-068.-
Geneva : CERN, 2026 - 28 p.
Fulltext: PDF; Related data file(s): ZIP; External link: Submit a comment
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Measurement of the CKM angle $\gamma$ in $B^{\pm} + \rightarrow D(\rightarrow K_{\rm S}^{0} h^{\prime+}h^{\prime-})h^{\pm}$ decays with a novel approach
/ LHCb Collaboration
A measurement of the CKM angle $\gamma$ and related strong-phase parameters is performed using a novel, model-independent approach in ${B^{\pm}\rightarrow D(\rightarrow K_{\rm S}^{0} h^{\prime+}h^{\prime-}) h^{\pm}}$ decays, where $h^{(\prime)} \equiv \pi, K$. The analysis uses a joint data sample of electron-positron collisions collected by the BESIII experiment at the Beijing Electron-Positron Collider II during 2010--2011 and 2021--2022, corresponding to an integrated luminosity of 8 fb$^{-1}$, and proton-proton collisions collected by the LHCb experiment at the Large Hadron Collider during 2011--2018, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2604.05701; LHCb-PAPER-2025-063; CERN-EP-2026-067.-
Geneva : CERN, 2026 - 57 p.
Fulltext: LHCb-PAPER-2025-063-supplementary - ZIP; 2604.05701 - PDF; Related data file(s): ZIP; External link: Submit a comment
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3.
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SHiP Hidden Sector Muon System: Progress report.
/ Lanfranchi, Gaia (INFN e Laboratori Nazionali di Frascati (IT)) ; Montanari, Alessandro (Universita e INFN, Bologna (IT)) ; Tosi, Nicolo (Universita e INFN, Bologna (IT)) ; Felici, Giulietto (INFN e Laboratori Nazionali di Frascati (IT)) ; Ciambrone, Paolo (INFN e Laboratori Nazionali di Frascati (IT)) ; Rovelli, Tiziano (Universita' e INFN, Bologna (IT)) ; Saputi, Alessandro (INFN e Laboratori Nazionali di Frascati (IT)) ; Calcaterra, Alessandro (INFN e Laboratori Nazionali di Frascati (IT)) ; Paoloni, Alessandro (INFN and Laboratori Nazionali di Frascati (IT))
/SHiP Collaboration
This document presents the status of the design and R\&D; activities of the Hidden Sector SHiP muon system and outlines a defined path towards the Technical Design Report with associated timescale, personpower, expertise and financial resources needed.
CERN-SHiP-NOTE-2019-002.-
Geneva : CERN, 2019
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4.
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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
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5.
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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
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6.
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Measurement of parameters of scintillating bars with wavelength-shifting fibres and silicon photomultiplier readout for the SHiP Muon Detector
/ Montanari, Alessandro (Universita e INFN, Bologna (IT)) ; Tosi, Nicolo (Universita e INFN, Bologna (IT)) ; Baldini, Wander (Universita di Ferrara & INFN (IT)) ; Calcaterra, Alessandro (Istituto Nazionale Fisica Nucleare Frascati (IT)) ; Lanfranchi, Gaia (Istituto Nazionale Fisica Nucleare Frascati (IT)) ; Saputi, Alessandro (Istituto Nazionale Fisica Nucleare Frascati (IT)) ; Khotyantsev, Alexey (Russian Academy of Sciences (RU)) ; Kudenko, Yury (Russian Academy of Sciences (RU)) ; Mefodev, Aleksandr (Russian Academy of Sciences (RU)) ; Mineev, Oleg (Russian Academy of Sciences (RU))
/SHiP Collaboration
The light yield and the time resolution of different types of 3 m long scintillating bars instrumented with wavelength shifting fibres and read out by different models of silicon photomultipliers have been measured at a test beam at the T9 area at the CERN Proton Synchrotron. The results obtained with different configurations are presented. [...]
CERN-SHiP-NOTE-2016-006.-
Geneva : CERN, 2016
Fulltext: PDF;
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7.
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The International Large Detector: Letter of Intent
/ Abe, Toshinori (Tokyo U.) ; Abernathy, Jason M. (Victoria U.) ; Abramowicz, Halina (Tel Aviv U.) ; Adamus, Marek (Warsaw, Inst. Nucl. Studies) ; Adeva, Bernardo (Santiago de Compostela U., IGFAE) ; Afanaciev, Konstantin (Minsk, NCPHEP) ; Aguilar-Saavedra, Juan Antonio (Granada U., Theor. Phys. Astrophys.) ; Alabau Pons, Carmen (Valencia U., IFIC) ; Albrecht, Hartwig (DESY) ; Andricek, Ladislav (Munich, Max Planck Inst.) et al.
The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC. [...]
arXiv:1006.3396 ; FERMILAB-LOI-2010-03 ; FERMILAB-PUB-09-682-E ; DESY-09-87 ; KEK-REPORT-2009-6 ; DESY-2009-87 ; FERMILAB-PUB-09-682-E ; KEK-REPORT-2009-6.
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2010 - 189.
Fermilab Library Server - Full text - Full text
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ILC Reference Design Report Volume 3 - Accelerator
/ Phinney, Nan (ed.) (SLAC) ; Toge, Nobukazu (ed.) (KEK, Tsukuba) ; Walker, Nicholas J. (ed.) (DESY) ; Aarons, Gerald (SLAC) ; Abe, Toshinori (Tokyo U.) ; Abernathy, Jason (Victoria U.) ; Ablikim, Medina (Beijing, Inst. High Energy Phys.) ; Abramowicz, Halina (Tel Aviv U.) ; Adey, David (Birmingham U.) ; Adloff, Catherine (Annecy, LAPP) et al.
The International Linear Collider (ILC) is a 200-500 GeV center-of-mass high-luminosity linear electron-positron collider, based on 1.3 GHz superconducting radio-frequency (SCRF) accelerating cavities. [...]
arXiv:0712.2361 ; FERMILAB-PUB-07-833-AD.
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2007 - 339.
Fermilab Library Server - Full text - Fulltext
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