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arXiv 2203.07501hep-ex
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SoLAr:液态氩中的太阳中微子

SoLAr: Solar Neutrinos in Liquid Argon

Saba Parsa, Michele Weber, Clara Cuesta, Ines Gil-Botella, Sergio Manthey, Andrzej M. Szelc, Shirley Weishi Li, Marco Pallavicini, Justin Evans, Roxanne Guenett… 展开作者

Saba Parsa, Michele Weber, Clara Cuesta, Ines Gil-Botella, Sergio Manthey, Andrzej M. Szelc, Shirley Weishi Li, Marco Pallavicini, Justin Evans, Roxanne Guenette, David Marsden, Nicola McConkey, Anyssa Navrer-Agasson, Guilherme Ruiz, Stefan Soldner-Rembold, Esteban Cristaldo, Andrea Falcone, Maritza Delgado Gonzales, Claudio Gotti, Daniele Guffanti, Gianluigi Pessina, Francesco Terranova, Marta Torti, Francesco Di Capua, Giuliana Fiorillo, John F. Beacom, Francesco Capozzi

摘要:

SoLAr是液氩中微子探测器技术的一个新概念,将这些设备的灵敏度扩展到MeV能量范围-将这些下一代探测器的物理范围扩展到包括太阳中微子。我们提出这个新的概念,以显着提高太阳中微子混合参数的精度和观察质子-质子聚变链的“hep分支”。SoLAr探测器将实现液态氩中太阳中微子的味道标记。SoLAr技术将基于单片光电荷像素读出的概念,该概念解决了这种探测器的主要要求:具有出色能量分辨率(约7%)的低能量阈值和通过脉冲形状鉴别的背景抑制。SoLAr概念也是DUNE“机会模块”的一个可能的技术选择,该模块可以作为下一代多用途观测站,用于从MeV到GeV范围的中微子。SoLAr的目标是在10吨级探测器中观测太阳中微子,并证明可以实现所需的背景抑制和能量分辨率。SoLAr将为精确测量8-B通量铺平道路,提高太阳中微子混合参数的精度,并最终导致在DUNE机遇号模块中首次观测到hep中微子。

英文摘要:

SoLAr is a new concept for a liquid-argon neutrino detector technology to extend the sensitivities of these devices to the MeV energy range - expanding the physics reach of these next-generation detectors to include solar neutrinos. We propose this novel concept to significantly improve the precision on solar neutrino mixing parameters and to observe the "hep branch" of the proton-proton fusion chain. The SoLAr detector will achieve flavour-tagging of solar neutrinos in liquid argon. The SoLAr technology will be based on the concept of monolithic light-charge pixel-based readout which addresses the main requirements for such a detector: a low energy threshold with excellent energy resolution (approximately 7%) and background rejection through pulse-shape discrimination. The SoLAr concept is also timely as a possible technology choice for the DUNE "Module of Opportunity", which could serve as a next-generation multi-purpose observatory for neutrinos from the MeV to the GeV range. The goal of SoLAr is to observe solar neutrinos in a 10 ton-scale detector and to demonstrate that the required background suppression and energy resolution can be achieved. SoLAr will pave the way for a precise measurement of the 8-B flux, an improved precision on solar neutrino mixing parameters, and ultimately lead to the first observation of hep neutrinos in the DUNE Module of Opportunity.

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