Results and Perspectives from the First Two Years of Neutrino Physics at the LHC by the SND@LHC Experiment

被引：0

作者：

Abbaneo, D. ^{[1
]}

Ahmad, S. ^{[2
]}

Albanese, R. ^{[3
,4
]}

Alexandrov, A. ^{[3
]}

Alicante, F. ^{[3
,4
]}

Androsov, K. ^{[5
]}

Anokhina, A. ^{[6
]}

Asada, T. ^{[3
,4
]}

Asawatangtrakuldee, C. ^{[7
]}

Ayala Torres, M. A. ^{[8
]}

Battilana, C. ^{[9
,10
]}

Bay, A. ^{[5
]}

Bertocco, A. ^{[3
,4
]}

Betancourt, C. ^{[11
]}

Bick, D. ^{[12
]}

Biswas, R. ^{[1
]}

Blanco Castro, A. ^{[13
]}

Boccia, V. ^{[3
,4
]}

Bogomilov, M. ^{[14
]}

Bonacorsi, D. ^{[9
,10
]}

Bonivento, W. M. ^{[15
]}

Bordalo, P. ^{[13
]}

Boyarsky, A. ^{[16
,17
]}

Buontempo, S. ^{[3
]}

Campanelli, M. ^{[18
]}

Camporesi, T. ^{[1
]}

Canale, V. ^{[3
,4
]}

Castro, A. ^{[9
,10
]}

Centanni, D. ^{[3
,19
]}

Cerutti, F. ^{[1
]}

Chernyavskiy, M. ^{[6
]}

Choi, K. -Y. ^{[20
]}

Cholak, S. ^{[5
]}

Cindolo, F. ^{[3
]}

Climescu, M. ^{[21
]}

Conaboy, A. P. ^{[22
]}

Dallavalle, G. M. ^{[9
]}

Davino, D. ^{[3
,23
]}

de Bryas, P. T. ^{[5
]}

De Lellis, G. ^{[3
,4
]}

De Magistris, M. ^{[3
,19
]}

De Roeck, A. ^{[1
]}

De Rujula, A. ^{[1
]}

De Serio, M. ^{[24
,25
]}

De Simone, D. ^{[11
]}

Di Crescenzo, A. ^{[3
,4
]}

Di Ferdinando, D. ^{[9
]}

Dona, R. ^{[9
,12
]}

Durhan, O. ^{[26
]}

Fabbri, F. ^{[9
]}

机构：

[1] European Org Nucl Res CERN, CH-1211 Geneva, Switzerland

[2] Pakistan Inst Nucl Sci & Technol PINSTECH, Islamabad 45650, Pakistan

[3] Sez INFN Napoli, I-80126 Naples, Italy

[4] Univ Napoli Federico II, I-80126 Naples, Italy

[5] Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland

[6] CERN, Zurich, Switzerland

[7] Chulalongkorn Univ, Bangkok 10330, Thailand

[8] Univ Andres Bello, Fac Ciencias Exactas, Ctr Theoret & Expt Particle Phys, Fernandez Concha 700, Santiago 7591538, Chile

[9] Sez INFN Bologna, I-40127 Bologna, Italy

[10] Univ Bologna, I-40127 Bologna, Italy

[11] UZH, Phys Inst, CH-8057 Zurich, Switzerland

[12] Hamburg Univ, D-22761 Hamburg, Germany

[13] Lab Instrumentat & Expt Particle Phys LIP, P-1649003 Lisbon, Portugal

[14] Sofia Univ, Fac Phys, Sofia 1164, Bulgaria

[15] Univ Cagliari, I-09124 Cagliari, Italy

[16] Leiden Univ, NL-2300 RA Leiden, Netherlands

[17] Taras Shevchenko Natl Univ Kyiv, UA-01033 Kyiv, Ukraine

[18] UCL, London WC1E 6BT, England

[19] Univ Napoli Parthenope, I-80143 Naples, Italy

[20] Sungkyunkwan Univ, Suwon 16419, South Korea

[21] Inst Phys & PRISMA Cluster Excellence, D-55099 Mainz, Germany

[22] Humboldt Univ, D-12489 Berlin, Germany

[23] Univ Sannio, I-82100 Benevento, Italy

[24] Sez INFN Bari, I-70126 Bari, Italy

[25] Univ Bari, I-70126 Bari, Italy

[26] Middle East Tech Univ METU, TR-06800 Ankara, Turkiye

[27] Univ Basilicata, I-85100 Potenza, Italy

[28] Pontificia Univ Catolica Chile, Dept Fis, Santiago 4860, Chile

[29] Imperial Coll London, London SW7 2AZ, England

[30] Univ Pisa, I-56126 Pisa, Italy

[31] SAPHIR, Millennium Inst Subatom Phys High Energy Frontier, Santiago 7591538, Chile

[32] Univ La Serena, Fac Ciencias, Dept Fis, La Serena 1200, Chile

[33] Ankara Univ, TR-06100 Ankara, Turkiye

[34] Gyeongsang Natl Univ, Dept Phys Educ, Jinju 52828, South Korea

[35] Gyeongsang Natl Univ, RINS, Jinju 52828, South Korea

[36] Gwangju Natl Univ Educ, Gwangju 61204, South Korea

[37] Nagoya Univ, Nagoya, Aichi 4648602, Japan

[38] Korea Univ, Seoul 02841, South Korea

[39] Chiang Mai Univ, Chiang Mai 50200, Thailand

[40] Toho Univ, Chiba 2748510, Japan

[41] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[42] Fac Engn, Kanagawa 2210802, Japan

[43] Constructor Univ, D-28759 Bremen, Germany

来源：

SYMMETRY-BASEL | 2024年 / 16卷 / 06期

基金：

瑞士国家科学基金会; 新加坡国家研究基金会;

关键词：

SND@LHC; neutrino; neutrino interactions; electron neutrino; muon neutrino; tau neutrino; flavor violation;

D O I：

10.3390/sym16060702

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

After rapid approval and installation, the SND@LHC Collaboration was able to gather data successfully in 2022 and 2023. Neutrino interactions from nu(mu)s originating at the LHC IP1 were observed. Since muons constitute the major background for neutrino interactions, the muon flux entering the acceptance was also measured. To improve the rejection power of the detector and to increase the fiducial volume, a third Veto plane was recently installed. The energy resolution of the calorimeter system was measured in a test beam. This will help with the identification of nu(e) interactions that can be used to probe charm production in the pseudo-rapidity range of SND@LHC (7.2 < eta < 8.4). Events with three outgoing muons have been observed and are being studied. With no vertex in the target, these events are very likely from muon trident production in the rock before the detector. Events with a vertex in the detector could be from trident production, photon conversion, or positron annihilation. To enhance SND@LHC's physics case, an upgrade is planned for HL-LHC that will increase the statistics and reduce the systematics. The installation of a magnet will allow the separation of nu(mu) from (nu) over bar (mu).

引用

页数：13

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