Ruoyu Fang

Mr. Ruoyu Fang

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 August 2021 in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Verified
Journal Article
Closed access
RRRoy A. Ready
Roy A. Ready
GAGordon Arrowsmith-Kron
Gordon Arrowsmith-Kron
KBKevin G. Bailey
Kevin G. Bailey
DBDominic Battaglia
Dominic Battaglia
MBMichael Bishof
Michael Bishof
JSJaideep T. Singh
Jaideep T. Singh

3 July 2024 in Physical Review C
Verified
Journal Article
Closed access
SHShahina
Shahina
RDR. J. Deboer
R. J. Deboer
JGJ. Görres
J. Görres
RFRuoyu Fang
Ruoyu Fang
MFM. Febbraro
M. Febbraro
MWM. Wiescher
M. Wiescher

27 August 2024 in Physical Review C
Verified
Journal Article
Closed access
RFRuoyu Fang
Ruoyu Fang
JGJ. Görres
J. Görres
RDR. J. Deboer
R. J. Deboer
SMS. Moylan
S. Moylan
ASA. T. Sanchez
A. T. Sanchez
MCM. Couder
M. Couder

1 April 2024 in arXiv
Verified
Preprint
Open access
PDF file
RFRuoyu Fang
Ruoyu Fang
JGJ. Görres
J. Görres
RDR. J. Deboer
R. J. Deboer
SMS. Moylan
S. Moylan
ASA. Sanchez
A. Sanchez
MCM. Couder
M. Couder
The $^{15}$N($α,γ$)$^{19}$F reaction produces $^{19}$F in asymptotic giant branch (AGB) stars, where the low energy tails of two resonances at $E_{\rm{c.m.}} = 1323 \pm 2$ and $1487 \pm 1.7$ keV are estimated to contribute about $30\%$ of the total reaction rate in these environments. However, recent measurements have shown discrepancies in the energies, the strengths, and the corresponding alpha widths of these two resonances, resulting in an increase in the systematic uncertainty of the extrapolated cross section to helium burning energies. With this motivation, we have undertaken new measurements of the $^{15}$N$(α,γ)^{19}$F at the University of Notre Dame Nuclear Science Laboratory. The setup consisted of an alpha particle beam impinged on a solid Ti$^{15}$N target with gamma-ray spectroscopy accomplished using a high purity germanium detector. Using the Doppler corrected gamma-ray energies, we confirmed the lower resonance energy to be $1321.6 \pm 0.6$ keV and found a value for the higher one of $1479.4 \pm 0.6$ keV that is more consistent with those found from previous elastic scattering studies. We found that the resonance strengths for both were consistent with most values found in the literature, but a larger alpha width has been recommended for the $E_{\rm{c.m.}} = 1487$ keV resonance. The larger alpha width suggests a reaction rate increase of about $15\%$ at temperatures $T < 0.1$ GK relevant to low mass AGB stars. The impact of the increased reaction rate requires further investigations.

21 August 2025 in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Verified
Journal Article
Open access
LML. Morales
L. Morales
SKS. Kalkal
S. Kalkal
JHJ. Hinnefeld
J. Hinnefeld
GBG.P.A. Berg
G.P.A. Berg
SBS. Broadwater
S. Broadwater
MCM. Couder
M. Couder