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相关论文: Light Concentrators for Borexino and CTF

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In this paper we use solar neutrino data to derive stringent bounds on Majorana neutrino transition moments (TMs). Should such be present, they would contribute to the neutrino--electron scattering cross section and hence alter the signal…

高能物理 - 唯象学 · 物理学 2008-11-26 W. Grimus , M. Maltoni , T. Schwetz , M. A. Tortola , J. W. F. Valle

The usage of a large amount of CdTe(CdZnTe) semiconductor detectors for solar neutrino spectroscopy in the low energy region is investigated. Several different coincidence signals can be formed on five different isotopes to measure the Be-7…

天体物理学 · 物理学 2011-07-19 K. Zuber

The Centrifugal Mirror Fusion Experiment (CMFX) at the University of Maryland, College Park is a rotating mirror device that utilizes a central cathode to generate a radial electric field which induces a strongly sheared azimuthal $E\times…

We use the Borexino 153.6 ton.year data to place constraints on non-standard neutrino-electron interactions, taking into account the uncertainty in the 7Be solar neutrino flux, and backgrounds due to 85Kr and 210Bi beta-decay. We find that…

高能物理 - 唯象学 · 物理学 2015-06-05 Sanjib Kumar Agarwalla , Francesco Lombardi , Tatsu Takeuchi

Post LSND results, sterile neutrinos have drawn attention and motivated the high energy physics, astronomy and cosmology to probe physics beyond the standard model considering minimal 3+1 (3 active and 1 sterile) to 3+N neutrino schemes.…

高能物理 - 唯象学 · 物理学 2016-08-03 Yogita Pant , Sujata Diwakar , Jyotsna Singh , R. B. Singh

Non-vanishing electromagnetic properties of the neutrinos have been predicted by many theories beyond the Standard Model, and an enhanced neutrino magnetic moment can have profound implications for fundamental physics. The XENON1T…

高能物理 - 实验 · 物理学 2021-12-22 Ziping Ye , Feiyang Zhang , Donglian Xu , Jianglai Liu

Neutrino detectors are among the largest photon detection instruments, built to capture scarce photons upon energy deposition. Many discoveries in neutrino physics, including the neutrino itself, are inseparable from the advances in photon…

The recent XENON1T excess can be explained by the solar active-sterile neutrino conversion with bound electrons via light mediator. Nevertheless, the atomic effects are usually omitted in the solar neutrino explanations. We systematically…

高能物理 - 唯象学 · 物理学 2022-06-01 Shao-Feng Ge , Pedro Pasquini , Jie Sheng

Low Energy solar neutrino detection plays a fundamental role in understanding both solar astrophysics and particle physics. After introducing the open questions on both fields, we review here the major results of the last two years and…

高能物理 - 实验 · 物理学 2012-11-26 Davide D'Angelo

We extract information on the fluxes of Be and CNO neutrinos directly from solar neutrino experiments, with minimal assumptions about solar models. Next we compare these results with solar models, both standard and non standard ones.…

高能物理 - 唯象学 · 物理学 2011-01-04 E. Calabresu , G. Fiorentini , M. Lissia , B. Ricci

Two methods are discussed for the solar neutrino spectroscopy in the sub-MeV region: absorption in a loaded liquid scintillator and elastic scattering in a TPC. The different neutrino oscillation solutions predict a strong effect in this…

高能物理 - 实验 · 物理学 2007-05-23 Carlo Broggini

The anticipated use of more than one thousand lead fluoride (PbF2) crystals as a fast and compact Cherenkov calorimeter material in a parity violation experiment at MAMI stimulated the investigation of the light yield (L.Y.) of these…

The possibility to improve the CERN to Gran Sasso neutrino beam performances for theta_{13} searches is investigated. We show that by an appropriate optimization of the target and focusing optics of the present CNGS design, we can increase…

高能物理 - 唯象学 · 物理学 2009-11-07 A. Rubbia , P. Sala

Relic neutrinos from the early universe are predicted to have a relatively large number density, but extremely low energies. Hence, the only possible interaction proceeds via neutrino capture on beta-decaying nuclei. In case relic neutrinos…

高能物理 - 唯象学 · 物理学 2020-09-24 Tim Ruhe , Alexander Sandrock

We report an improved geo-neutrino measurement with Borexino from 2056 days of data taking. The present exposure is $(5.5\pm0.3)\times10^{31}$ proton$\times$yr. Assuming a chondritic Th/U mass ratio of 3.9, we obtain $23.7 ^{+6.5}_{-5.7}…

The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino experiment with a 20 kt liquid scintillator detector designed to determine the neutrino mass hierarchy, and measure the neutrino oscillation parameters. Linear…

Jiangmen Underground Neutrino Observatory (JUNO) is the next generation neutrino experiment which aims at neutrino mass hierarchy problem along with many other cutting-edge studies concerning neutrinos. Located 700m underground in Jiangmen…

仪器与探测器 · 物理学 2023-08-07 Guojun Yu , Jialiang Zhang , Shuo Li , Zifeng Xu , Lei Zhang , Aizhong Huang , Ming Qi

Lightweight parabolic mirrors for solar concentrators have been fabricated using carbon fiber reinforced polymer (CFRP) and a nanometer scale optical surface smoothing technique. The smoothing technique improved the surface roughness of the…

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