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1.
Multiplicities of positive and negative pions, kaons and unidentified hadrons from deep-inelastic scattering of muons off a liquid hydrogen target / Alexeev, G.D. (Unlisted) ; Alexeev, M.G. (INFN, Turin ; U. Turin (main)) ; Alice, C. (INFN, Turin ; U. Turin (main)) ; Amoroso, A. (INFN, Turin ; U. Turin (main)) ; Andrieux, V. (Illinois U., Urbana (main)) ; Anosov, V. (Unlisted) ; Augsten, K. (Prague, Tech. U.) ; Augustyniak, W. (NCBJ, Warsaw) ; Azevedo, C.D.R. (Aveiro U.) ; Badelek, B. (Warsaw U.) et al.
The multiplicities of positive and negative pions, kaons and unidentified hadrons produced in deep-inelastic scattering are measured in bins of the Bjorken scaling variable $x$, the relative virtual-photon energy $y$ and the fraction of the virtual-photon energy transferred to the final-state hadron $z$. [...]
CERN-EP-2024-270 ; arXiv:2410.12005.
- 22.
Fulltext
2.
High-Statistics Measurement of Collins and Sivers Asymmetries for Transversely Polarized Deuterons / COMPASS Collaboration
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons on a transversely polarised $^6$LiD target. The data were taken in 2022 with the COMPASS spectrometer using the 160 \gevv muon beam at CERN, balancing the existing data on transversely polarised proton targets. [...]
arXiv:2401.00309; CERN-EP-2023-308.- 2024-09-05 - 10 p. - Published in : Phys. Rev. Lett. 133 (2024) 101903 Fulltext: 2401.00309 - PDF; Publication - PDF;
3.
Final COMPASS results on the transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan process / COMPASS Collaboration
The COMPASS Collaboration performed measurements of the Drell-Yan process in 2015 and 2018 using a 190 GeV/c $\pi^{-}$ beam impinging on a transversely polarised ammonia target. Combining the data of both years, we present final results on the amplitudes of the five azimuthal modulations in the dimuon production cross section. [...]
arXiv:2312.17379; CERN-EP-2023-307.- 2024-08-14 - 8 p. - Published in : Phys. Rev. Lett. 133 (2024) 071902 Fulltext: 2312.17379 - PDF; Publication - PDF;
4.
Progress in coupling MPGD-based photon detectors with nanodiamond photocathodes / Brunbauer, F.M. (CERN) ; Chatterjee, C. (INFN, Trieste) ; Cicala, G. (Bari U. ; INFN, Bari) ; Cicuttin, A. (ICTP, Trieste ; INFN, Trieste) ; Crespo, M.L. (ICTP, Trieste ; INFN, Trieste) ; D‘Ago, D. (INFN, Trieste ; Trieste U.) ; Dalla Torre, S. (INFN, Trieste) ; Dasgupta, S. (INFN, Trieste) ; Gregori, M. (INFN, Trieste) ; Levorato, S. (INFN, Trieste) et al.
The next generation of gaseous photon detectors is requested to overcome the limitations of the available technology, in terms of resolution and robustness. The quest for a novel photocathode, sensitive in the far vacuum ultra violet wavelength range and more robust than present ones, motivated an R&D; programme to explore nanodiamond based photoconverters, which represent the most promising alternative to cesium iodine. [...]
arXiv:2401.17485.- 2023-08-05 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168575 Fulltext: PDF;
In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168575
5.
The high voltage system of the novel MPGD-based photon detectors of COMPASS RICH-1 and its development towards a scalable High Voltage Power Supply System for MPGDs / Bressan, A (INFN, Trieste ; Trieste U.) ; Carrato, S (INFN, Trieste ; Trieste U.) ; Chatterjee, C (INFN, Trieste) ; Cicuttin, A (ICTP, Trieste ; INFN, Trieste) ; Crespo, M L (ICTP, Trieste ; INFN, Trieste) ; D'Ago, D (INFN, Trieste ; Trieste U.) ; Dalla Torre, S (INFN, Trieste) ; Dasgupta, S (INFN, Trieste ; Bhubaneswar, NISER) ; Ballina E , M G (ICTP, Trieste) ; Florian S , W (ICTP, Trieste ; INFN, Trieste ; Trieste U.) et al.
The COMPASS RICH-1 detector has undergone a major upgrade in 2016 with the installation of four novel MPGD-based photon detectors. They consist of large-size hybrid MPGDs with multi-layer architecture composed of two layers of Thick-GEMs and bulk resistive MicroMegas. [...]
2023 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168558
In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168558
6.
Employment of nanodiamond photocathodes on MPGD-based HEP detector at the future EIC / Brunbauer, F M (CERN) ; Chatterjee, C (INFN, Trieste) ; Cicala, G (INFN, Bari) ; Cicuttin, A (ICTP, Trieste) ; Ciliberti, P (Trieste U. ; INFN, Trieste) ; Crespo, M L (ICTP, Trieste) ; D’Ago, D (Trieste U. ; INFN, Trieste) ; Torre, S Dalla (INFN, Trieste) ; Dasgupta, S (ICTP, Trieste) ; Gregori, M (INFN, Trieste) et al.
In high momenta range, the construction of a Ring Imaging CHerenkov (RICH) detector for the particle identification at the future Electron Ion Collider (EIC) is a complicated task. A compact collider setup imposes to construct a RICH with a short radiator length, hence limiting the number of photons. [...]
2022 - 9 p. - Published in : J. Phys. : Conf. Ser. 2374 (2022) 012140 Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012140
7.
The COMPASS RICH-1 MPGD based photon detector performance / Agarwala, J (ICTP, Trieste ; INFN, Pavia ; Pavia U.) ; Alexeev, M (INFN, Turin) ; Azevedo, C D R (Aveiro U.) ; Bradamante, F (Trieste U. ; INFN, Trieste) ; Bressan, A (Trieste U. ; INFN, Trieste) ; Büchele, M (Freiburg U.) ; Chatterjee, C (Trieste U. ; INFN, Trieste) ; Chiosso, M (INFN, Turin ; Turin U.) ; Cicuttin, A (ICTP, Trieste) ; Ciliberti, P (INFN, Trieste) et al.
In 2016 we have upgraded the COMPASS RICH by novel gaseous photon detectors based on MPGD technology. Four new photon detectors, covering a total active area of 1.5 m $^{2}$, have been installed in order to cope with the challenging efficiency and stability requirements of the COMPASS physics programme. [...]
2022 - 5 p. - Published in : J. Phys. : Conf. Ser. 2374 (2022) 012126 Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012126
8.
Study of nanodiamond photocathodes for MPGD-based detectors of single photons / Brunbauer, F.M. (CERN) ; Chatterjee, C. (INFN, Trieste) ; Cicala, G. (IASF, Bologna ; INFN, Bari) ; Cicuttin, A. (ICTP, Trieste ; INFN, Trieste) ; Crespo, M.L. (ICTP, Trieste ; INFN, Trieste) ; D'Ago, D. (Trieste U. ; INFN, Trieste) ; Dalla Torre, S. (INFN, Trieste) ; Dasgupta, S. (INFN, Trieste) ; Gregori, M. (INFN, Trieste) ; Levorato, S. (INFN, Trieste) et al.
The proposed new Electron-Ion Collider poses a technical and intellectual challenge for the detector design to accommodate the long-term diverse physics goals envisaged by the program. This requires a 4π detector system capable of reconstructing the energy and momentum of final state particles with high precision. [...]
arXiv:2402.13966.- 2023-01-02 - Published in : Nucl. Instrum. Methods Phys. Res., A 1048 (2023) 168014 Fulltext: PDF;
In : 9th Conference on New Developments in Photodetection, Troyes, France, 4 - 8 Jul 2022, pp.168014
9.
Transverse-spin-dependent azimuthal asymmetries of pion and kaon pairs produced in muon-proton and muon-deuteron semi-inclusive deep inelastic scattering / COMPASS Collaboration
A set of measurements of azimuthal asymmetries in the production of pairs of identified hadrons in deep-inelastic scattering of muons on transversely polarised 6LiD (deuteron) and NH3 (proton) targets is presented. All available data collected in the years 2002–2004 and 2007/2010 with the COMPASS spectrometer using a muon beam of 160 GeV=c at the CERN SPS were analysed. [...]
arXiv:2301.02013; CERN-EP-2022-292.- Geneva : CERN, 2023-08-29 - 11 p. - Published in : Phys. Lett. B 845 (2023) 138155 Draft (restricted): PDF; Fulltext: CERN-EP-2022-292 - PDF; 2301.02013 - PDF; Publication - PDF;
10.
Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of $\rho^0$ mesons / COMPASS Collaboration
The production of vector mesons in deep inelastic scattering is an interesting yet scarsely explored channel to study the transverse spin structure of the nucleon and the related phenomena. The COMPASS collaboration has performed the first measurement of the Collins and Sivers asymmetries for inclusively produced $\rho^0$ mesons. [...]
arXiv:2211.00093; CERN-EP-2022-234; CERN-EP-2022--234.- Geneva : CERN, 2023-06-16 - 9 p. - Published in : Phys. Lett. B 843 (2023) 137950 Draft (restricted): PDF; Fulltext: CERN-EP-2022-234_2 - PDF; Publication - PDF; 2211.00093 - PDF;

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