High-intensity-beam study of O17(p,γ)F18 and thermonuclear reaction rates for O17+p

Buckner, M. Q.; Iliadis, C.; Kelly, K. J.; Downen, L. N.; Champagne, A. E.; Cesaratto, J. M.; Howard, C.; Longland, R.

doi:10.1103/PhysRevC.91.015812

Title: High-intensity-beam study of ${}^{17}O (p, γ) {}^{18}F$ and thermonuclear reaction rates for ${}^{17}O + p$

Abstract

Hydrogen burning of the oxygen isotopes takes place in low-mass stars, asymptotic giant branch stars, and classical novae. Observations of oxygen elemental and isotopic abundances in stellar spectra or in presolar grains provide strong constraints for stellar models if reliable thermonuclear reaction rates for hydrogen burning of oxygen are available. We present the results of a new measurement of the $^{17} O {(p, γ)}^{18} F$ reaction in the laboratory bombarding energy range of $170 - 530$ keV. The measurement is performed with significantly higher beam intensities ( $I_{\max}$ $\approx$ 2 mA) compared to previous work and by employing a sophisticated $γ$ -ray coincidence spectrometer. We measured the cross section at much lower energies than previous in-beam experiments. Furthermore we apply a novel data-analysis method that is based on the decomposition of different contributions to the measured pulse-height spectrum. Our measured strengths of the low-energy resonances amount to $ω γ_{pres} (193 keV) = (1.86 \pm 0.13) \times 10^{- 6}$ eV and $ω γ_{pres} (518 keV) = (13.70 \pm 0.96) \times 10^{- 3}$ eV. For the direct capture $S$ factor at zero energy, we find a value of $S_{DC}^{pres} (0)$ = $4.82 \pm 0.41$ keV b. We also present new thermonuclear rates for the $^{17} O + p$ reactions, taking into account all consistent results from previous measurements.

Authors:

Buckner, M. Q. ^[1]; Iliadis, C. ^[1]; Kelly, K. J. ^[1]; Downen, L. N. ^[1]; Champagne, A. E. ^[1]; Cesaratto, J. M. ^[1]; Howard, C. ^[1]; Longland, R. ^[2]

Univ. of North Carolina, Chapel Hill, NC (United States)
Univ. of North Carolina, Chapel Hill, NC (United States); North Carolina State Univ., Raleigh, NC (United States)

Publication Date:: Fri Jan 30 00:00:00 EST 2015

Research Org.:: University of North Carolina, Chapel Hill, NC (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1600479

Alternate Identifier(s):: OSTI ID: 1181436

Grant/Contract Number:: FG02-97ER41041; FC52-08NA28752

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 91; Journal Issue: 1; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Buckner, M. Q., Iliadis, C., Kelly, K. J., Downen, L. N., Champagne, A. E., Cesaratto, J. M., Howard, C., and Longland, R. High-intensity-beam study of O17(p,γ)F18 and thermonuclear reaction rates for O17+p.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevC.91.015812.

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                    Buckner, M. Q., Iliadis, C., Kelly, K. J., Downen, L. N., Champagne, A. E., Cesaratto, J. M., Howard, C., & Longland, R. High-intensity-beam study of O17(p,γ)F18 and thermonuclear reaction rates for O17+p.  United States.  https://doi.org/10.1103/PhysRevC.91.015812

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                    Buckner, M. Q., Iliadis, C., Kelly, K. J., Downen, L. N., Champagne, A. E., Cesaratto, J. M., Howard, C., and Longland, R. Fri .  
"High-intensity-beam study of O17(p,γ)F18 and thermonuclear reaction rates for O17+p".  United States.  https://doi.org/10.1103/PhysRevC.91.015812.  https://www.osti.gov/servlets/purl/1600479.

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@article{osti_1600479,

  title        = {High-intensity-beam study of O17(p,γ)F18 and thermonuclear reaction rates for O17+p},

  author       = {Buckner, M. Q. and Iliadis, C. and Kelly, K. J. and Downen, L. N. and Champagne, A. E. and Cesaratto, J. M. and Howard, C. and Longland, R.},

  abstractNote = {Hydrogen burning of the oxygen isotopes takes place in low-mass stars, asymptotic giant branch stars, and classical novae. Observations of oxygen elemental and isotopic abundances in stellar spectra or in presolar grains provide strong constraints for stellar models if reliable thermonuclear reaction rates for hydrogen burning of oxygen are available. We present the results of a new measurement of the 17O(p,γ)18F reaction in the laboratory bombarding energy range of 170–530 keV. The measurement is performed with significantly higher beam intensities (Imax ≈ 2 mA) compared to previous work and by employing a sophisticated γ-ray coincidence spectrometer. We measured the cross section at much lower energies than previous in-beam experiments. Furthermore we apply a novel data-analysis method that is based on the decomposition of different contributions to the measured pulse-height spectrum. Our measured strengths of the low-energy resonances amount to ωγpres(193keV)=(1.86±0.13)×10-6 eV and ωγpres(518keV)=(13.70±0.96)×10-3 eV. For the direct capture S factor at zero energy, we find a value of SDCpres(0) = 4.82±0.41 keV b. We also present new thermonuclear rates for the 17O+p reactions, taking into account all consistent results from previous measurements.},

  doi          = {10.1103/PhysRevC.91.015812},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 1,

  volume       = 91,

  place        = {United States},

  year         = {Fri Jan 30 00:00:00 EST 2015},

  month        = {Fri Jan 30 00:00:00 EST 2015}

}

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Abstract

Citation Formats

Measurement of the E r c.m. = 138 keV resonance in the 23 Na( p , γ ) 24 Mg reaction and the abundance of sodium in AGB stars journal, December 2013

Resonance strengths of some light nuclei journal, December 1982

A spectroscopic study of 18F journal, January 1973

Explosive Hydrogen Burning of O 17 in Classical Novae journal, August 2004

Nuclear astrophysics studies at LENA: The accelerators journal, November 2010

Proton capture on 17 O and its astrophysical implications journal, November 2012

The CNO Isotopes: Deep Circulation in Red Giants and First and Second Dredge‐up journal, January 1999

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ROOT — An object oriented data analysis framework journal, April 1997

Thermonuclear reaction rate of 18 O( p , γ ) 19 F journal, December 2012

Nuclear astrophysics studies at the LENA facility: The -ray detection system journal, October 2006

Estimating small signals by using maximum likelihood and Poisson statistics journal, July 1999

First Direct Measurement of the O 17 ( p , γ ) F 18 Reaction Cross Section at Gamow Energies for Classical Novae journal, November 2012

New reaction rate for O 16 ( p , γ ) F 17 and its influence on the oxygen isotopic ratios in massive AGB stars journal, April 2008

Hot bottom burning in asymptotic giant branch stars and its effect on oxygen isotopic abundances journal, March 1995

Thermonuclear reaction rate of O 17 ( p , γ ) F 18 journal, May 2005

Geant4 developments and applications journal, February 2006

Evolution of Asymptotic Giant Branch Stars journal, September 2005

Nucleosynthesis in classical novae journal, October 2006

Remeasurement of the 193 keV resonance in O 17 ( p , α ) N 14 journal, May 2007

Experimental determination of the O 17 ( p , α ) N 14 and O 17 ( p , γ ) F 18 reaction rates journal, March 2007

A Java-based data acquisition system for nuclear physics journal, May 2001

The alpha widths of the 5603, 5605 and 5668 keV states in 18F journal, July 1980

Underground study of the O 17 ( p , γ ) F 18 reaction relevant for explosive hydrogen burning journal, January 2014

Mean proton and α -particle reduced widths of the Porter-Thomas distribution and astrophysical applications journal, July 2013

Starlib: a Next-Generation Reaction-Rate Library for Nuclear Astrophysics journal, July 2013

Measurement of the 183 keV resonance in O 17 ( p , α ) N 14 using a novel technique journal, June 2007

O 17 ( 3 He, d ) 18 F reaction and its implication in the O 17 destruction in the CNO cycle in stars journal, November 1989

The 17O(p, α)14N reaction: Physics and astrophysics journal, November 1979

Energy levels of light nuclei A = 18–19 journal, December 1995

Spectroscopic factors from radiative capture reactions journal, December 1973

Isospin mixing of the 5605 and 5668 keV states in 18f in the light of a new state at 5603 keV journal, September 1977

N 14 ( α , γ ) F 18 Reaction journal, September 1968

Nuclear structure of 18F journal, January 1973

Hydrogen Burning of O 17 in Classical Novae journal, July 2005

Energy levels of light nuclei A = 13–15 journal, February 1991

Spectroscopic factors from direct proton capture journal, June 2004

Cool luminous stars: the hybrid nature of their infrared spectra journal, July 2008

Nucleosynthesis and Chemical Evolution of Oxygen journal, January 2008

Energy calibration of the 500 kV heavy ion implanter ionas journal, May 1985

Measurement of the O 17 ( p , α ) N 14 Cross Section at Stellar Energies journal, April 1995

Hydrogen burning of 17O in the CNO cycle journal, October 1975

Measurement of the 17 O ( p , γ ) 18 F reaction rate at astrophysically relevant energies journal, March 2012

The Ame2012 atomic mass evaluation journal, December 2012

Geant4—a simulation toolkit journal, July 2003

Nuclear Physics of Stars book, January 2007

Charged-particle thermonuclear reaction rates: II. Tables and graphs of reaction rates and probability density functions journal, October 2010

Preparation of isotopic oxygen targets via the anodic oxidation of tantalum journal, June 1976

Charged-particle thermonuclear reaction rates: I. Monte Carlo method and statistical distributions journal, October 2010

Hydrogen depth profiling using18O ions journal, December 1995

Fitting using finite Monte Carlo samples journal, October 1993

Monte Carlo simulation of the LENA detector system journal, November 2013

Studies of weak capture-γ-ray resonances via coincidence techniques journal, March 2002

Measurement of O 17 ( p , γ ) F 18 between the narrow resonances at E r lab = 193 and 519 keV journal, April 2010

Nuclear Structure of F 18 journal, October 1969

Direct measurement of nuclear cross-section of astrophysical interest: Results and perspectives journal, March 2018

Shell and explosive hydrogen burning: Nuclear reaction rates for hydrogen burning in RGB, AGB and Novae journal, April 2016

Trends in nuclear astrophysics journal, May 2016

Title: High-intensity-beam study of ${}^{17}O (p, γ) {}^{18}F$ and thermonuclear reaction rates for ${}^{17}O + p$

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A spectroscopic study of 18F
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Estimating small signals by using maximum likelihood and Poisson statistics
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First Direct Measurement of the ${}^{17}O (p, γ) {}^{18}F$ Reaction Cross Section at Gamow Energies for Classical Novae
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New reaction rate for ${}^{16}O$ ( $p, γ$ ) ${}^{17}F$ and its influence on the oxygen isotopic ratios in massive AGB stars
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Hot bottom burning in asymptotic giant branch stars and its effect on oxygen isotopic abundances
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Thermonuclear reaction rate of ${}^{17}O (p, γ) {}^{18}F$
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Geant4 developments and applications
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Evolution of Asymptotic Giant Branch Stars
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Remeasurement of the 193 keV resonance in ${}^{17}O$ ( $p, α$ ) ${}^{14}N$
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Experimental determination of the ${}^{17}O$ ( $p, α$ ) ${}^{14}N$ and ${}^{17}O$ ( $p, γ$ ) ${}^{18}F$ reaction rates
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A Java-based data acquisition system for nuclear physics
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The alpha widths of the 5603, 5605 and 5668 keV states in 18F
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Underground study of the ${}^{17}O (p, γ) {}^{18}F$ reaction relevant for explosive hydrogen burning
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Mean proton and $α$ -particle reduced widths of the Porter-Thomas distribution and astrophysical applications
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Starlib: a Next-Generation Reaction-Rate Library for Nuclear Astrophysics
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The 17O(p, α)14N reaction: Physics and astrophysics
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Energy levels of light nuclei A = 18–19
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Spectroscopic factors from radiative capture reactions
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$N^{14} (α, γ) F^{18}$ Reaction
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Nuclear structure of 18F
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Hydrogen Burning of ${}^{17}O$ in Classical Novae
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Energy levels of light nuclei A = 13–15
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Spectroscopic factors from direct proton capture
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Cool luminous stars: the hybrid nature of their infrared spectra
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Nucleosynthesis and Chemical Evolution of Oxygen
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Energy calibration of the 500 kV heavy ion implanter ionas
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Measurement of the ${}^{17}O (p, α) {}^{14}N$ Cross Section at Stellar Energies
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Measurement of the $^{17}$ O ${(p, γ)}^{18}$ F reaction rate at astrophysically relevant energies
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The Ame2012 atomic mass evaluation
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Charged-particle thermonuclear reaction rates: I. Monte Carlo method and statistical distributions
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Hydrogen depth profiling using18O ions
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Fitting using finite Monte Carlo samples
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Monte Carlo simulation of the LENA detector system
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Studies of weak capture-γ-ray resonances via coincidence techniques
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Measurement of ${}^{17}O$ ( $p, γ$ ) ${}^{18}F$ between the narrow resonances at $E_{r}^{lab} = 193$ and $519$ keV
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Nuclear Structure of $F^{18}$
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Direct measurement of nuclear cross-section of astrophysical interest: Results and perspectives
journal, March 2018

Shell and explosive hydrogen burning: Nuclear reaction rates for hydrogen burning in RGB, AGB and Novae
journal, April 2016

Trends in nuclear astrophysics
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