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Charged-current non-standard neutrino interactions at Daya Bay
/ Daya Bay Collaboration
The full data set of the Daya Bay reactor neutrino experiment is used to probe the effect of the charged current non-standard interactions (CC-NSI) on neutrino oscillation experiments. Two different approaches are applied and constraints on the corresponding CC-NSI parameters are obtained with the neutrino flux taken from the Huber-Mueller model with a $5\%$ uncertainty. [...]
arXiv:2401.02901.-
2024-05-16 - 25 p.
- Published in : JHEP 2405 (2024) 204
Fulltext: document - PDF; 2401.02901 - PDF;
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One-to-one correspondence reconstruction at the electron-positron Higgs factory
/ Wang, Yuexin (Beijing, Inst. High Energy Phys.) ; Liang, Hao (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS ; Vanderbilt U.) ; Zhu, Yongfeng (Peking U., SKLNPT) ; Che, Yuzhi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Xia, Xin (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Qu, Huilin (CERN) ; Zhou, Chen (Peking U., SKLNPT) ; Zhuang, Xuai (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
We propose one-to-one correspondence reconstruction for electron-positron Higgs factories. [...]
arXiv:2411.06939.
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ParticleNet and its application on CEPC Jet Flavor Tagging
/ Zhu, Yongfeng (Peking U., SKLNPT) ; Liang, Hao (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Wang, Yuexin (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Qu, Huilin (CERN) ; Zhou, Chen (Peking U., SKLNPT) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
Identification of quark flavor is essential for collider experiments in high-energy physics, relying on the flavor tagging algorithm. In this study, using a full simulation of the Circular Electron Positron Collider (CEPC), we investigated the flavor tagging performance of two different algorithms: ParticleNet, originally developed at CMS, and LCFIPlus, the current flavor tagging algorithm employed at CEPC. [...]
arXiv:2309.13231.-
2024-02-14 - 10 p.
- Published in : Eur. Phys. J. C 84 (2024) 152
Fulltext: 2309.13231 - PDF; document - PDF;
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Jet-Origin Identification and Its Application at an Electron-Positron Higgs Factory
/ Liang, Hao (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhu, Yongfeng (Peking U., SKLNPT) ; Wang, Yuexin (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS ; CCAST World Lab, Beijing) ; Che, Yuzhi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhou, Chen (Peking U., SKLNPT) ; Qu, Huilin (CERN) ; Ruan, Manqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS)
To enhance the scientific discovery power of high-energy collider experiments, we propose and realize the concept of jet origin identification that categorizes jets into 5 quark species $(b,c,s,u,d)$, 5 anti-quarks $(\bar{b},\bar{c},\bar{s},\bar{u},\bar{d})$, and the gluon. Using state-of-the-art algorithms and simulated $\nu\bar{\nu}H, H\rightarrow jj$ events at 240 GeV center-of-mass energy at the electron-positron Higgs factory, the jet origin identification simultaneously reaches jet flavor tagging efficiencies ranging from 67% to 92% for bottom, charm, and strange quarks, and jet charge flip rates of 7% to 24% for all quark species. [...]
arXiv:2310.03440.-
2024-05-31 - 8 p.
- Published in : Phys. Rev. Lett. 132 (2024) 221802
Fulltext: 2310.03440 - PDF; Publication - PDF;
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Model Independent Approach of the JUNO $^8$B Solar Neutrino Program
/ JUNO Collaboration
The physics potential of detecting $^8$B solar neutrinos is exploited at the Jiangmen Underground Neutrino Observatory (JUNO), in a model independent manner by using three distinct channels of the charged-current (CC), neutral-current (NC) and elastic scattering (ES) interactions. [...]
arXiv:2210.08437.
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24 p.
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Radiation campaign of HPK prototype LGAD sensors for the High-Granularity Timing Detector (HGTD)Radiation Campaign of HPK Prototype LGAD sensors for the High-Granularity Timing Detector (HGTD)
/ Shi, X. (Beijing, Inst. High Energy Phys.) ; Ayoub, M.K. (Beijing, Inst. High Energy Phys.) ; da Costa, J. Barreiro Guimarães (Beijing, Inst. High Energy Phys.) ; Cui, H. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Kiuchi, R. (Beijing, Inst. High Energy Phys.) ; Fan, Y. (Beijing, Inst. High Energy Phys.) ; Han, S. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Huang, Y. (Beijing, Inst. High Energy Phys.) ; Jing, M. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Liang, Z. (Beijing, Inst. High Energy Phys.) et al.
We report on the results of a radiation campaign with neutrons and protons of Low Gain Avalanche Detectors (LGAD) produced by Hamamatsu (HPK) as prototypes for the High-Granularity Timing Detector (HGTD) in ATLAS. Sensors with an active thickness of 50~$\mu$m were irradiated in steps of roughly 2$\times$ up to a fluence of $3\times10^{15}~\mathrm{n_{eq}cm^{-2}}$. [...]
arXiv:2004.13895.-
2020-11-01 - 15 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 979 (2020) 164382
Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164382
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Layout and Performance of HPK Prototype LGAD Sensors for the High-Granularity Timing Detector
/ Yang, X. (CUST, SKLPDE) ; Alderweireldt, S. (CERN) ; Atanov, N. (BITP, Kiev ; Dubna, JINR) ; Ayoub, M.K. (Beijing, Inst. High Energy Phys.) ; Barreiro Guimarães da Costa, J. (Beijing, Inst. High Energy Phys.) ; Castillo García, L. (Barcelona, IFAE) ; Chen, H. (CUST, SKLPDE) ; Christie, S. (UC, Santa Cruz, Inst. Part. Phys.) ; Cindro, V. (Stefan Inst., Ljubljana) ; Cui, H. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) et al.
The High-Granularity Timing Detector is a detector proposed for the ATLAS Phase II upgrade. The detector, based on the Low-Gain Avalanche Detector (LGAD) technology will cover the pseudo-rapidity region of $2.4<|\eta|<4.0$ with two end caps on each side and a total area of 6.4 $m^2$. [...]
arXiv:2003.14071.-
2020-11-11 - 17 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 980 (2020) 164379
Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164379
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Beam test results of NDL Low Gain Avalanche Detectors (LGAD)
/ Xiao, S. (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Alderweireldt, S. (CERN) ; Ali, S. (Taiwan, Inst. Phys.) ; Allaire, C. (CERN) ; Agapopoulou, C. (Orsay, LAL) ; Atanov, N. (Dubna, JINR) ; Ayoub, M.K. (Beijing, Inst. High Energy Phys.) ; Barone, G. (Brookhaven) ; Benchekroun, D. (Casablanca U.) ; Buzatu, A. (Taiwan, Inst. Phys.) et al.
To meet the timing resolution requirement of up-coming High Luminosity LHC (HL-LHC), a new detector based on the Low-Gain Avalanche Detector(LGAD), High-Granularity Timing Detector (HGTD), is under intensive research in ATLAS. Two types of IHEP-NDL LGADs(BV60 and BV170) for this update is being developed by Institute of High Energy Physics (IHEP) of Chinese Academic of Sciences (CAS) cooperated with Novel Device Laboratory (NDL) of Beijing Normal University and they are now under detailed study. [...]
arXiv:2005.07323.-
2021-02-11 - 16 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 989 (2021) 164956
Fulltext: PDF;
In : 12th international "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD), Hiroshima, Japan, 14 - 18 Dec 2019, pp.164956
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