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Preprint
Report number arXiv:2502.10188
Title Installation and performance of the 3rd Veto plane at the SND@LHC detector
Author(s)

Abbaneo, D. (CERN) ; Ahmad, S. (PINSTECH, Islamabad) ; Albanese, R. (INFN, Naples) ; Alexandrov, A. (INFN, Naples) ; Alicante, F. (INFN, Naples) ; Androsov, K. (Ecole Polytechnique, Lausanne) ; Anokhina, A. (Unlisted) ; Asada, T. (INFN, Naples) ; Asawatangtrakuldee, C. (Chulalongkorn U.) ; Torres, M.A. Ayala (Andres Bello Natl. U.) ; Battilana, C. (INFN, Bologna ; Bologna U.) ; Bay, A. (Ecole Polytechnique, Lausanne) ; Bertocco, A. (INFN, Naples) ; Betancourt, C. (Zurich U.) ; Bick, D. (Hamburg U.) ; Biswas, R. (CERN) ; Castro, A. Blanco (LIP, Lisbon) ; Boccia, V. (INFN, Naples) ; Bogomilov, M. (Sofiya U.) ; Bonacorsi, D. (INFN, Bologna ; Bologna U.) ; Bonivento, W.M. (Cagliari U.) ; Bordalo, P. (LIP, Lisbon) ; Boyarsky, A. (Leiden U. ; Taras Shevchenko U.) ; Buontempo, S. (INFN, Naples) ; Cafaro, V. (INFN, Bologna) ; Campanelli, M. (University Coll. London) ; Camporesi, T. (LIP, Lisbon) ; Canale, V. (INFN, Naples) ; Centanni, D. (INFN, Naples ; Naples U.) ; Cerutti, F. (CERN) ; Choi, K.-Y. (Sungkyunkwan U.) ; Cholak, S. (Ecole Polytechnique, Lausanne) ; Cindolo, F. (INFN, Bologna) ; Climescu, M. (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Conaboy, A.P. (Humboldt U., Berlin) ; Crupano, A. (INFN, Bologna) ; Dallavalle, G.M. (INFN, Bologna) ; Davino, D. (INFN, Naples ; Sannio U.) ; de Bryas, P.T. (Ecole Polytechnique, Lausanne) ; De Lellis, G. (INFN, Naples) ; De Magistris, M. (INFN, Naples ; Naples U.) ; De Roeck, A. (CERN) ; De Rújula, A. (CERN) ; De Simone, D. (Zurich U.) ; Di Crescenzo, A. (INFN, Naples) ; Di Ferdinando, D. (INFN, Bologna) ; Dinc, C. (Middle East Tech. U., Ankara) ; Donà, R. (INFN, Bologna ; Bologna U.) ; Durhan, O. (Middle East Tech. U., Ankara ; Ankara U.) ; Fasanella, D. (INFN, Bologna) ; Fedotovs, F. (University Coll. London) ; Ferrillo, M. (Zurich U.) ; Ferro-Luzzi, M. (CERN) ; Fini, R.A. ; Fiorillo, A. (INFN, Naples) ; Fresa, R. (INFN, Naples ; Basilicata U., Potenza) ; Funk, W. (CERN) ; Giordano, V. (INFN, Bologna) ; Golovatiuk, A. (INFN, Naples) ; Golutvin, A. (Imperial Coll., London) ; Graverini, E. (Ecole Polytechnique, Lausanne ; Pisa U.) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Guliaeva, V. (Jacobs U., Bremen) ; Haefeli, G.J. (Ecole Polytechnique, Lausanne) ; Hagner, C. (Hamburg U.) ; Helo Herrera, J.C. (SAPHIR Millennium Inst. ; La Serena U.) ; van Herwijnen, E. (Imperial Coll., London) ; Iengo, P. (INFN, Naples) ; Ilieva, S. (CERN ; Sofiya U.) ; Infantino, A. (CERN) ; Iuliano, A. (INFN, Naples) ; Jacobsson, R. (CERN) ; Kamiscioglu, C. (Middle East Tech. U., Ankara) ; Kauniskangas, A.M. (Ecole Polytechnique, Lausanne) ; Kim, S.H. (Gyeongsang Natl. U.) ; Kim, Y.G. (Chonnam Natl. U.) ; Klioutchnikov, G. (CERN) ; Komatsu, M. (Nagoya U.) ; Kuleshov, S. (SAPHIR Millennium Inst. ; Andres Bello Natl. U.) ; Krzempek, L. (INFN, Naples ; CERN ; Naples U.) ; Lacker, H.M. (Humboldt U., Berlin) ; Lantwin, O. (INFN, Naples) ; Lasagni Manghi, F. (INFN, Bologna) ; Lauria, A. (INFN, Naples) ; Lee, K.Y. (Gyeongsang Natl. U.) ; Lee, K.S. (Korea U.) ; Loschiavo, V.P. (INFN, Naples ; Sannio U.) ; Margiotta, A. (INFN, Bologna ; Bologna U.) ; Mascellani, A. (Ecole Polytechnique, Lausanne) ; Mei, F. (Bologna U. ; INFN, Bologna) ; Miano, A. (INFN, Naples ; Hebrew U.) ; Mikulenko, A. (Leiden U.) ; Montesi, M.C. (INFN, Naples) ; Navarria, F.L. (INFN, Bologna ; Bologna U.) ; Nuntiyakul, W. (Chiang Mai U.) ; Ogawa, S. (Toho U.) ; Ovchynnikov, M. (CERN) ; Paggi, G. (INFN, Bologna ; Bologna U.) ; Park, B.D. (Gyeongsang Natl. U.) ; Perrotta, A. (INFN, Bologna) ; Polukhina, N. (Unlisted) ; Primavera, F. (INFN, Bologna) ; Prota, A. (INFN, Naples) ; Quercia, A. (INFN, Naples) ; Ramos, S. (LIP, Lisbon) ; Reghunath, A. (Humboldt U., Berlin) ; Ronchetti, F. (Ecole Polytechnique, Lausanne) ; Rovelli, T. (INFN, Bologna ; Bologna U.) ; Ruchayskiy, O. (Bohr Inst.) ; Ruf, T. (CERN) ; Gilarte, M. Sabate (CERN) ; Sadykov, Z. (INFN, Naples) ; Scalera, V. (INFN, Naples ; Naples U.) ; Schmidt-Parzefall, W. (Hamburg U.) ; Schneider, O. (Ecole Polytechnique, Lausanne) ; Sekhniaidze, G. (INFN, Naples) ; Serra, N. (Zurich U.) ; Shaposhnikov, M. (Ecole Polytechnique, Lausanne) ; Shchedrina, T. (INFN, Naples) ; Shchutska, L. (Ecole Polytechnique, Lausanne) ; Shibuya, H. (Toho U. ; Kanagawa U.) ; Sirri, G. (INFN, Bologna) ; Soares, G. (LIP, Lisbon) ; Sohn, J.Y. (Gyeongsang Natl. U.) ; Soto Sandoval, O.J. (SAPHIR Millennium Inst. ; La Serena U.) ; Spurio, M. (INFN, Bologna ; Bologna U.) ; Steggemann, J. (Ecole Polytechnique, Lausanne) ; Strekalina, D. (INFN, Naples) ; Timiryasov, I. (Bohr Inst.) ; Tioukov, V. (INFN, Naples) ; Tramontano, F. (INFN, Naples) ; Trippl, C. (Ecole Polytechnique, Lausanne) ; Ursov, E. (Humboldt U., Berlin) ; Ustyuzhanin, A. (INFN, Naples ; Jacobs U., Bremen) ; Vankova-Kirilova, G. (Sofiya U.) ; Vasquez, G. (Zurich U.) ; Verguilov, V. (Sofiya U.) ; Leonardo, Guerreiro ; Vilela, C. (LIP, Lisbon) ; Visone, C. (INFN, Naples) ; Wanke, R. (U. Mainz, PRISMA ; Mainz U., Inst. Phys.) ; Yaman, E. (Middle East Tech. U., Ankara) ; Yang, Z. (Ecole Polytechnique, Lausanne) ; Yazici, C. (Middle East Tech. U., Ankara) ; Yoon, C.S. (Gyeongsang Natl. U.) ; Zaffaroni, E. (Ecole Polytechnique, Lausanne) ; Zamora Saa, J. (SAPHIR Millennium Inst. ; Andres Bello Natl. U.) ; Bello, Andrès ; Concha, Fernandez ; Santiago

Imprint 2025-02-14
Number of pages 13
Note 13 pages, 13 figures. To be published in JINST
Subject category physics.ins-det ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment SND@LHC
Abstract During 2022/2023 the optimal inefficiency of the Veto system of the SND@LHC detector was measured to be $(7.8\pm2.8)\times10^{-8}$. To reduce this inefficiency, a third Veto plane was installed during the 2023-2024 Year End Technical Stop. In addition, the Veto system was lowered to cover the target fully, thereby increasing acceptance. This paper describes how the inefficiency of the Veto system was reduced from $7.8\times10^{-8}$ with an acceptance of about $64\%$ of the target area in 2022-2023 to $(8.7\pm3.5)\times10^{-9}$ on the full area in 2024.
Other source Inspire
Copyright/License preprint: (License: CC BY 4.0)



 


 Record creato 2025-02-18, modificato l'ultima volta il 2025-03-07


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