학술논문
Technical Proposal: FASERnu
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article
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Collaboration, FASER; Abreu, Henso; Andreini, Marco; Antel, Claire; Ariga, Akitaka; Ariga, Tomoko; Bertone, Caterina; Boyd, Jamie; Buckley, Andy; Cadoux, Franck; Casper, David W; Cerutti, Francesco; Chen, Xin; Coccaro, Andrea; Danzeca, Salvatore; Dougherty, Liam; Dozen, Candan; Denton, Peter B; Favre, Yannick; Fellers, Deion; Feng, Jonathan L; Ferrere, Didier; Gall, Jonathan; Galon, Iftah; Gibson, Stephen; Gonzalez-Sevilla, Sergio; Hsu, Shih-Chieh; Hu, Zhen; Iacobucci, Giuseppe; Jakobsen, Sune; Jansky, Roland; Kajomovitz, Enrique; Kling, Felix; Kose, Umut; Kuehn, Susanne; Lamont, Mike; Lefebvre, Helena; Levinson, Lorne; Li, Ke; McFayden, Josh; Meehan, Sam; Mladenov, Dimitar; Nakamura, Mitsuhiro; Nakano, Toshiyuki; Nessi, Marzio; Neuhaus, Friedemann; Osborne, John; Otono, Hidetoshi; Pelletier, Serge; Petersen, Brian; Pietropaolo, Francesco; Queitsch-Maitland, Michaela; Resnati, Filippo; Sabate-Gilarte, Marta; Salfeld-Nebgen, Jakob; Galan, Francisco Sanchez; Diaz, Pablo Santos; Sato, Osamu; Scampoli, Paola; Schmieden, Kristof; Schott, Matthias; Schulz, Holger; Sfyrla, Anna; Shively, Savannah; Smolinsky, Jordan; Soffa, Aaron M; Takubo, Yosuke; Torrence, Eric; Trojanowski, Sebastian; Tufanli, Serhan; Zhang, Dengfeng; Zhang, Gang
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Abstract
FASERnu is a proposed small and inexpensive emulsion detector designed todetect collider neutrinos for the first time and study their properties.FASERnu will be located directly in front of FASER, 480 m from the ATLASinteraction point along the beam collision axis in the unused service tunnelTI12. From 2021-23 during Run 3 of the 14 TeV LHC, roughly 1,300 electronneutrinos, 20,000 muon neutrinos, and 20 tau neutrinos will interact in FASERnuwith TeV-scale energies. With the ability to observe these interactions,reconstruct their energies, and distinguish flavors, FASERnu will probe theproduction, propagation, and interactions of neutrinos at the highesthuman-made energies ever recorded. The FASERnu detector will be composed of1000 emulsion layers interleaved with tungsten plates. The total volume of theemulsion and tungsten is 25cm x 25cm x 1.35m, and the tungsten target mass is1.2 tonnes. From 2021-23, 7 sets of emulsion layers will be installed, withreplacement roughly every 20-50 1/fb in planned Technical Stops. In thisdocument, we summarize FASERnu's physics goals and discuss the estimates ofneutrino flux and interaction rates. We then describe the FASERnu detector indetail, including plans for assembly, transport, installation, and emulsionreplacement, and procedures for emulsion readout and analyzing the data. Weclose with cost estimates for the detector components and infrastructure workand a timeline for the experiment.