Inference of bipolar neutrino flavor oscillations near a core-collapse supernova based on multiple measurements at Earth
Inference of bipolar neutrino flavor oscillations near a core-collapse supernova based on multiple measurements at Earth
复制标题
基于地球多次测量对核心塌陷超新星附近双极中微子风味振荡的推断
DOI:
10.1103/physrevd.105.103003
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发表时间:
2022
影响因子:
5
通讯作者:
Singh, Ishaan
中科院分区:
文献类型:
--
作者:
Armstrong, Eve;Patwardhan, Amol V.;Ahmetaj, A. A.;Sanchez, M. Margarette;Miskiewicz, Sophia;Ibrahim, Marcus;Singh, Ishaan
Neutrinos in compact-object environments, such as core-collapse supernovae, can experience various kinds of collective effects in flavor space, engendered by neutrino-neutrino interactions. These include “bipolar” collective oscillations, which are exhibited by neutrino ensembles where different flavors dominate at different energies. Considering the importance of neutrinos in the dynamics and nucleosynthesis in these environments, it is desirable to ascertain whether an Earth-based detection could contain signatures of bipolar oscillations that occurred within a supernova envelope. To that end, we continue examining a cost-function formulation of statistical data assimilation (SDA) to infer solutions to a small-scale model of neutrino flavor transformation. SDA is an inference paradigm designed to optimize a model with sparse data. Our model consists of two monoenergetic neutrino beams with different energies emanating from a source and coherently interacting with each other and with a matter background, with radially varying interaction strengths. We attempt to infer flavor transformation histories of these beams using simulated measurements of the flavor content at locations “in vacuum” (that is, far from the source), which could in principle correspond to Earth-based detectors. Within the scope of this small-scale model, we found that: (i) based on such measurements, the SDA procedure is able to inferwhetherbipolar oscillations had occurred within the protoneutron star envelope, and (ii) if the measurements sample the full amplitude of the neutrino oscillations in vacuum, then the amplitude of the prior bipolar oscillations is well predicted. This result intimates that the inference paradigm can well complement numerical integration codes, via its ability to infer flavor evolution at physically inaccessible locations.
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DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
B. Müller
通讯作者:
B. Müller
DOI:
10.1146/annurev-nucl-102920-050505
发表时间:
2020-11
影响因子:
12.4
作者:
I. Tamborra;S. Shalgar
通讯作者:
I. Tamborra;S. Shalgar
DOI:
10.3847/1538-4357/abac5e
发表时间:
2020
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Xiong, Zewei;Sieverding, Andre;Sen, Manibrata;Qian, Yong-Zhong
通讯作者:
Qian, Yong-Zhong
DOI:
10.1088/0954-3899/38/3/035201
发表时间:
2010
期刊:
Journal of Physics G
影响因子:
--
作者:
H. Duan;A. Friedland;G. McLaughlin;R. Surman
通讯作者:
R. Surman
DOI:
10.1007/978-1-4614-7218-6
发表时间:
2013
期刊:
arXiv: Nuclear Theory
影响因子:
--
作者:
H. Abarbanel
通讯作者:
H. Abarbanel