Technical Proposal: FASERnu
Technical Proposal: FASERnu
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2020-01
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Faser Collaboration Henso Abreu;M. Andreini;C. Antel;A. Ariga;T. Ariga;C. Bertone;J. Boyd;Andy Buckley;F. Cadoux;D. Casper;F. Cerutti;Xin Chen;A. Coccaro;S. Danzeca;L. Dougherty;C. Dozen;P. Denton;Y. Favre;Deion Fellers;Jonathan L. Feng;D. Ferrere;J. Gall;I. Galon;S. Gibson;S. Gonzalez-Sevilla;S. Hsu;Zhen Hu;G. Iacobucci;S. Jakobsen;R. Jansky;E. Kajomovitz;F. Kling;U. Kose;S. Kuehn;M. Lamont;H. Lefebvre;L. Levinson;K. Li;J. Mcfayden;S. Meehan;D. Mladenov;M. Nakamura;T. Nakano;M. Nessi;F. Neuhaus;J. Osborne;H. Otono;S. Pelletier;B. Petersen;F. Pietropaolo;M. Queitsch-Maitland;F. Resnati;M. Sabate-Gilarte;Jakob Salfeld-Nebgen;F. S. Galan;P. S. Diaz;O. Sato;P. Scampoli;K. Schmieden;M. Schott;H. Schulz;A. Sfyrla;S. Shively;Jordan Smolinsky;A. M. Soffa;Y. Takubo;E. Torrence;S. Trojanowski;S. Tufanli;Dengfeng Zhang;Gang Zhang
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作者：
Faser Collaboration Henso Abreu;M. Andreini;C. Antel;A. Ariga;T. Ariga;C. Bertone;J. Boyd;Andy Buckley;F. Cadoux;D. Casper;F. Cerutti;Xin Chen;A. Coccaro;S. Danzeca;L. Dougherty;C. Dozen;P. Denton;Y. Favre;Deion Fellers;Jonathan L. Feng;D. Ferrere;J. Gall;I. Galon;S. Gibson;S. Gonzalez-Sevilla;S. Hsu;Zhen Hu;G. Iacobucci;S. Jakobsen;R. Jansky;E. Kajomovitz;F. Kling;U. Kose;S. Kuehn;M. Lamont;H. Lefebvre;L. Levinson;K. Li;J. Mcfayden;S. Meehan;D. Mladenov;M. Nakamura;T. Nakano;M. Nessi;F. Neuhaus;J. Osborne;H. Otono;S. Pelletier;B. Petersen;F. Pietropaolo;M. Queitsch-Maitland;F. Resnati;M. Sabate-Gilarte;Jakob Salfeld-Nebgen;F. S. Galan;P. S. Diaz;O. Sato;P. Scampoli;K. Schmieden;M. Schott;H. Schulz;A. Sfyrla;S. Shively;Jordan Smolinsky;A. M. Soffa;Y. Takubo;E. Torrence;S. Trojanowski;S. Tufanli;Dengfeng Zhang;Gang Zhang
FASERnu是一种小型且廉价的乳胶探测器，旨在首次探测对撞机中微子并研究其性质。FASERnu将位于FASER正前方，在未使用的服务隧道TI 12中，沿光束碰撞轴距离ATLAS相互作用点沿着480 m。从2021年到2023年，在14 TeV LHC的第三次运行期间，大约1，300个电子中微子，20，000个μ子中微子和20个τ中微子将在FASERnu中以TeV级能量相互作用。通过观察这些相互作用，重建它们的能量并区分味道的能力，FASERnu将探测中微子的产生，传播和相互作用，这些中微子具有有史以来最高的人造能量。FASERnu探测器将由1000个与钨板交错的乳剂层组成。乳胶和钨的总体积为25 cm x 25 cm x 1.35 m，钨靶质量为1.2吨。从2021年至2023年，将安装7套乳化层，在计划的技术停止中大约每20-50 1/fb更换一次。在本文中，我们总结了FASERnu的物理目标，并讨论了中微子通量和相互作用率的估计。然后，我们详细描述了FASERnu探测器，包括组装，运输，安装和乳剂更换计划，以及乳剂读出和分析数据的程序。最后，我们对探测器组件和基础设施工作进行了成本估算，并给出了实验的时间轴。
FASERnu is a proposed small and inexpensive emulsion detector designed to detect collider neutrinos for the first time and study their properties. FASERnu will be located directly in front of FASER, 480 m from the ATLAS interaction point along the beam collision axis in the unused service tunnel TI12. From 2021-23 during Run 3 of the 14 TeV LHC, roughly 1,300 electron neutrinos, 20,000 muon neutrinos, and 20 tau neutrinos will interact in FASERnu with TeV-scale energies. With the ability to observe these interactions, reconstruct their energies, and distinguish flavors, FASERnu will probe the production, propagation, and interactions of neutrinos at the highest human-made energies ever recorded. The FASERnu detector will be composed of 1000 emulsion layers interleaved with tungsten plates. The total volume of the emulsion and tungsten is 25cm x 25cm x 1.35m, and the tungsten target mass is 1.2 tonnes. From 2021-23, 7 sets of emulsion layers will be installed, with replacement roughly every 20-50 1/fb in planned Technical Stops. In this document, we summarize FASERnu's physics goals and discuss the estimates of neutrino flux and interaction rates. We then describe the FASERnu detector in detail, including plans for assembly, transport, installation, and emulsion replacement, and procedures for emulsion readout and analyzing the data. We close with cost estimates for the detector components and infrastructure work and a timeline for the experiment.