pith. machine review for the scientific record. sign in

arxiv: 1809.04660 · v3 · submitted 2018-09-12 · ✦ hep-ex

Recognition: unknown

Search for a time-varying electron antineutrino signal at Daya Bay

Daya Bay Collaboration: D. Adey , F. P. An , A. B. Balantekin , H. R. Band , M. Bishai , S. Blyth , D. Cao , G. F. Cao
show 190 more authors
J. Cao J. F. Chang Y. Chang H. S. Chen S. M. Chen Y. Chen Y. X. Chen J. Cheng Z. K. Cheng J. J. Cherwinka M. C. Chu A. Chukanov J. P. Cummings N. Dash F. S. Deng Y. Y. Ding M. V. Diwan T. Dohnal J. Dove M. Dvo\v{r}\'ak D. A. Dwyer M. Gonchar G. H. Gong H. Gong W. Q. Gu J. Y. Guo L. Guo X. H. Guo Y. H. Guo Z. Guo R. W. Hackenburg S. Hans M. He K. M. Heeger Y. K. Heng A. Higuera Y. B. Hsiung B. Z. Hu J. R. Hu T. Hu Z. J. Hu H. X. Huang X. T. Huang Y. B. Huang P. Huber D. E. Jaffe K. L. Jen X. L. Ji X. P. Ji R. A. Johnson D. Jones L. Kang S. H. Kettell L. W. Koerner S. Kohn M. Kramer T. J. Langford K. Lau L. Lebanowski J. Lee J. H. C. Lee R. T. Lei R. Leitner J. K. C. Leung C. Li F. Li H. L. Li Q. J. Li S. Li S. C. Li S. J. Li W. D. Li X. N. Li X. Q. Li Y. F. Li Z. B. Li H. Liang C. J. Lin G. L. Lin S. Lin Y.-C. Lin J. J. Ling J. M. Link L. Littenberg B. R. Littlejohn J. C. Liu J. L. Liu Y. Liu Y. H. Liu C. Lu H. Q. Lu J. S. Lu K. B. Luk X. B. Ma X. Y. Ma Y. Q. Ma Y. Malyshkin C. Marshall D. A. Martinez Caicedo K. T. McDonald R. D. McKeown I. Mitchell L. Mora Lepin J. Napolitano D. Naumov E. Naumova J. P. Ochoa-Ricoux A. Olshevskiy H.-R. Pan J. Park S. Patton V. Pec J. C. Peng L. Pinsky C. S. J. Pun F. Z. Qi M. Qi X. Qian R. M. Qiu N. Raper J. Ren R. Rosero B. Roskovec X. C. Ruan H. Steiner J. L. Sun W. Tang K. Treskov W.-H. Tse C. E. Tull N. Viaux B. Viren V. Vorobel C. H. Wang J. Wang M. Wang N. Y. Wang R. G. Wang W. Wang X. Wang Y. F. Wang Z. Wang Z. M. Wang H. Y. Wei L. H. Wei L. J. Wen K. Whisnant C. G. White T. Wise H. L. H. Wong S. C. F. Wong E. Worcester Q. Wu W. J. Wu D. M. Xia Z. Z. Xing J. L. Xu T. Xue C. G. Yang L. Yang M. S. Yang Y. Z. Yang M. Ye M. Yeh B. L. Young H. Z. Yu Z. Y. Yu B. B. Yue S. Zeng L. Zhan C. Zhang C. C. Zhang F. Y. Zhang H. H. Zhang J. W. Zhang Q. M. Zhang R. Zhang X. F. Zhang X. T. Zhang Y. M. Zhang Y. X. Zhang Y. Y. Zhang Z. C. Zhang Z. J. Zhang Z. P. Zhang Z. Y. Zhang J. Zhao L. Zhou H. L. Zhuang J. H. Zou
Authors on Pith no claims yet
classification ✦ hep-ex
keywords dayasearchsignalthreetimedaysexperimentexperimental
0
0 comments X
read the original abstract

A search for a time-varying $\bar{\nu}_{e}$ signal was performed with 621 days of data acquired by the Daya Bay Reactor Neutrino Experiment over 704 calendar days. The time spectrum of the measured $\overline{\nu}_e$ flux normalized to its prediction was analyzed with a Lomb-Scargle periodogram, which yielded no significant signal for periods ranging from 2 hours to nearly 2 years. The normalized time spectrum was also fit for a sidereal modulation under the Standard Model extension (SME) framework to search for Lorentz and CPT violation (LV-CPTV). Limits were obtained for all six flavor pairs $\bar{e}\bar{\mu}$, $\bar{e}\bar{\tau}$, $\bar{\mu}\bar{\tau}$, $\bar{e}\bar{e},\bar{\mu}\bar{\mu}$ and $\bar{\tau}\bar{\tau}$ by fitting them one at a time, constituting the first experimental constraints on the latter three. Daya Bay's high statistics and unique layout of multiple directions from three pairs of reactors to three experimental halls allowed the simultaneous constraint of individual SME LV-CPTV coefficients without assuming others contribute negligibly, a first for a neutrino experiment.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.