Works (58)

2022 journal article

Direct Measurement of Resonances in 7Be(alpha,gamma )11C Relevant to vp-Process Nucleosynthesis

PHYSICAL REVIEW LETTERS, 129(16).

By: A. Psaltis*, A. Chen, R. Longland, D. Connolly, C. Brune, B. Davids, J. Fallis, R. Giri ...

Sources: Web Of Science, ORCID
Added: December 5, 2022

2022 journal article

Experimental study of the Si-30(He-3, d) P-31 reaction and thermonuclear reaction rate of Si-30(p, gamma)( 3)1P

PHYSICAL REVIEW C, 105(1).

By: D. Harrouz*, N. Sereville*, P. Adsley*, F. Hammache*, R. Longland, B. Bastin*, T. Faestermann*, R. Hertenberger* ...

Sources: Web Of Science, ORCID
Added: March 7, 2022

2022 journal article

First inverse kinematics measurement of resonances in 7Be(alpha, gamma)11C relevant to neutrino-driven wind nucleosynthesis using DRAGON

PHYSICAL REVIEW C, 106(4).

By: A. Psaltis*, A. Chen, R. Longland, D. Connolly, C. Brune, B. Davids, J. Fallis, R. Giri ...

Sources: Web Of Science, ORCID
Added: November 28, 2022

2022 journal article

The impact of O-17 + alpha reaction rate uncertainties on the s-process in rotating massive stars

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 514(2), 2650–2657.

By: J. Frost-Schenk*, P. Adsley*, A. Laird*, R. Longland, C. Angus*, C. Barton*, A. Choplin*, C. Diget* ...

Sources: Web Of Science, ORCID
Added: July 5, 2022

2021 journal article

New energy for the 133-keV resonance in the Na-23(p, gamma) Mg-24 reaction and its impact on nucleosynthesis in globular clusters

PHYSICAL REVIEW C, 104(3).

Sources: ORCID, Web Of Science
Added: September 10, 2021

2020 journal article

Bayesian analysis of the Zn-70(d, He-3) Cu-69 transfer reaction

PHYSICAL REVIEW C, 102(2).

Sources: Web Of Science, ORCID
Added: August 31, 2020

2020 journal article

Correlated energy uncertainties in reaction rate calculations

ASTRONOMY & ASTROPHYSICS, 642.

By: R. Longland & N. Sereville*

Sources: Web Of Science, ORCID
Added: November 2, 2020

2020 journal article

Evaluation of the N-13(alpha, p)O-16 thermonuclear reaction rate and its impact on the isotopic composition of supernova grains

PHYSICAL REVIEW C, 102(3).

By: A. Meyer*, N. Sereville*, A. Laird*, F. Hammache*, R. Longland, T. Lawson*, M. Pignatari*, L. Audouin* ...

Sources: Web Of Science, ORCID
Added: October 5, 2020

2020 journal article

Shell-model studies of the astrophysical rp-process reactions S-34(p, gamma) Cl-35 and Cl-34g(,m)(p, gamma) Ar-35

PHYSICAL REVIEW C, 102(2).

Sources: Web Of Science, ORCID
Added: August 24, 2020

2020 article

Shell-model studies of the astrophysical rp-process reactions S-34(p,gamma)Cl-35 and Cl-34g,Cl-m(p,gamma)Ar-35

27TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE (INPC2019), Vol. 1643.

By: W. Richter, B. Brown, R. Longland, C. Wrede, C. Fry, P. Denisenkov, F. Herwig, D. Kurtulgil, M. Pignatari, R. Reifarth

Sources: Web Of Science, ORCID
Added: August 30, 2021

2020 journal article

Study of the Mg-25(d,p)Mg-26 reaction to constrain the Al-25(p,gamma)Si-26 resonant reaction rates in nova burning conditions

EUROPEAN PHYSICAL JOURNAL A, 56(2).

By: C. Hamill*, P. Woods*, D. Kahl*, R. Longland, J. Greene*, C. Marshall, F. Portillo n, K. Setoodehnia

Sources: Web Of Science, ORCID
Added: April 6, 2020

2020 journal article

Thermonuclear reaction rate of Si-30(p , gamma) P-31

PHYSICAL REVIEW C, 102(1).

Sources: Web Of Science, ORCID
Added: August 3, 2020

2019 journal article

Experimental study of Cl35 excited states via S32(α,p)

Physical Review C, 99(5).

By: K. Setoodehnia n, J. Kelley n, C. Marshall n, F. Chaves n & R. Longland

Source: ORCID
Added: August 12, 2019

2019 journal article

The Focal-Plane Detector Package on the TUNL Split-Pole Spectrograph

IEEE Transactions on Instrumentation and Measurement, 68(2), 533–546.

By: C. Marshall, K. Setoodehnia, K. Kowal*, F. Portillo n, A. Champagne*, S. Hale*, A. Dummer*, R. Longland

Sources: NC State University Libraries, ORCID
Added: January 14, 2019

2018 journal article

Effectiveness of using a magnetic spectrograph with the Trojan Horse method

Journal of Physics: Conference Series, 940, 012046.

By: S. Manwell, A. Parikh*, A. Chen*, N. Séréville*, P. Adsley*, D. Irvine*, F. Hammache, I. Stefan ...

Source: ORCID
Added: August 12, 2019

2018 journal article

Excited states of Ca39 and their significance in nova nucleosynthesis

Physical Review C, 98(5).

By: K. Setoodehnia, C. Marshall, J. Kelley, J. Liang, F. Chaves & R. Longland

Sources: NC State University Libraries, ORCID
Added: December 10, 2018

2018 journal article

On the parallelization of stellar evolution codes

Computational Astrophysics and Cosmology, 5(1).

By: D. Martin*, J. José* & R. Longland

Source: ORCID
Added: August 12, 2019

2018 journal article

Reaction rates for the K39(p,γ)Ca40 reaction

Physical Review C, 98(2).

By: R. Longland, J. Dermigny* & C. Marshall

Sources: NC State University Libraries, ORCID
Added: October 19, 2018

2017 journal article

Correlated uncertainties in Monte Carlo reaction rate calculations

Astronomy & Astrophysics, 604, A34.

By: R. Longland

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2016 journal article

Characterization of a 10B-doped liquid scintillator as a capture-gated neutron spectrometer

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 811, 108–114.

By: S. Hunt*, C. Iliadis* & R. Longland

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2016 journal article

Measurement of very low (α,n) cross sections of astrophysical interest

Journal of Physics: Conference Series, 665, 012031.

By: J. Tain*, D. Jordán*, J. Agramunt*, A. Algora*, I. Bandac*, A. Bettini*, R. Caballero-Folch*, F. Calviño* ...

Source: ORCID
Added: August 12, 2019

2016 journal article

The20Ne(d,p)21Ne transfer reaction in relation to thes-process abundances

Journal of Physics: Conference Series, 665, 012026.

By: C. Nsangu*, A. Laird*, A. Parikh*, P. Adsley*, M. Birch*, A. Chen*, T. Faestermann*, S. Fox* ...

Source: ORCID
Added: August 12, 2019

2015 journal article

High-intensity-beam study ofO17(p,γ)F18and thermonuclear reaction rates forO17+p

Physical Review C, 91(1).

By: M. Buckner*, C. Iliadis*, K. Kelly*, L. Downen*, A. Champagne*, J. Cesaratto*, C. Howard*, R. Longland

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2015 journal article

New reaction rates for improved primordialD/Hcalculation and the cosmic evolution of deuterium

Physical Review D, 92(12).

By: A. Coc, P. Petitjean, J. Uzan, E. Vangioni, P. Descouvemont, C. Iliadis, R. Longland

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2015 journal article

New recommendedωγfor theErc.m.=458keV resonance inNe22(p,γ)Na23

Physical Review C, 92(3).

By: K. Kelly*, A. Champagne, R. Longland & M. Buckner*

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2015 journal article

Statistical methods for thermonuclear reaction rates and nucleosynthesis simulations

Journal of Physics G: Nuclear and Particle Physics, 42(3), 034007.

By: C. Iliadis*, R. Longland, A. Coc*, F. Timmes* & A. Champagne*

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2014 journal article

Nuclear astrophysics in the laboratory and in the universe

AIP Advances, 4(4), 041006.

By: A. Champagne, C. Iliadis & R. Longland

Source: ORCID
Added: August 12, 2019

2014 journal article

Performance improvements for nuclear reaction network integration

Astronomy & Astrophysics, 563, A67.

By: R. Longland, D. Martin* & J. José*

Source: ORCID
Added: August 12, 2019

2014 journal article

Thermonuclear reaction rate ofNe18(α,p)Na21from Monte Carlo calculations

Physical Review C, 90(6).

By: P. Mohr*, R. Longland & C. Iliadis*

Sources: NC State University Libraries, ORCID
Added: August 6, 2018

2013 journal article

Evidence for the existence of the astrophysically important 6.40-MeV state of31S

Physical Review C, 88(5).

By: D. Irvine*, A. Chen*, A. Parikh*, K. Setoodehnia*, T. Faestermann*, R. Hertenberger*, H. Wirth*, V. Bildstein* ...

Source: ORCID
Added: August 12, 2019

2013 journal article

Isγ-Ray Emission from Novae Affected by Interference Effects in theF18(p,α)O15Reaction?

Physical Review Letters, 110(3).

By: A. Laird*, A. Parikh*, A. Murphy*, K. Wimmer*, A. Chen*, C. Deibel*, T. Faestermann*, S. Fox* ...

Source: ORCID
Added: August 12, 2019

2013 journal article

Mean proton andα-particle reduced widths of the Porter-Thomas distribution and astrophysical applications

Physical Review C, 88(1).

By: I. Pogrebnyak*, C. Howard*, C. Iliadis*, R. Longland & G. Mitchell

Sources: ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

Measurement of theErc.m.=138keV resonance in the23Na(p,γ)24Mg reaction and the abundance of sodium in AGB stars

Physical Review C, 88(6).

By: J. Cesaratto*, A. Champagne*, M. Buckner*, T. Clegg*, S. Daigle*, C. Howard*, C. Iliadis*, R. Longland, J. Newton*, B. Oginni*

Source: ORCID
Added: August 12, 2019

2013 journal article

Nuclear structure of30S and its implications for nucleosynthesis in classical novae

Physical Review C, 87(6).

By: K. Setoodehnia*, A. Chen*, D. Kahl*, T. Komatsubara*, J. José*, R. Longland, Y. Abe*, D. Binh* ...

Source: ORCID
Added: August 12, 2019

2012 journal article

CONSTRAINTS ON THE MASS AND RADIUS OF THE ACCRETING NEUTRON STAR IN THE RAPID BURSTER

The Astrophysical Journal, 752(2), 158.

By: G. Sala*, F. Haberl*, J. José*, A. Parikh*, R. Longland, L. Pardo*, M. Andersen*

Sources: Crossref, ORCID
Added: February 5, 2020

2012 journal article

Current Status of the22Ne+αs-Process Neutron Source

Journal of Physics: Conference Series, 337, 012047.

By: R. Longland & C. Iliadis*

Source: ORCID
Added: August 12, 2019

2012 journal article

Lithium production in the merging of white dwarf stars

Astronomy & Astrophysics, 542, A117.

Source: ORCID
Added: August 12, 2019

2012 journal article

Publisher's Note: Reaction rates for thes-process neutron source22Ne +α[Phys. Rev. C85, 065809 (2012)]

Physical Review C, 86(1).

By: R. Longland, C. Iliadis & A. Karakas*

Source: ORCID
Added: August 12, 2019

2012 journal article

Reaction rates for thes-process neutron source22Ne+α

Physical Review C, 85(6).

By: R. Longland, C. Iliadis* & A. Karakas*

Source: ORCID
Added: August 12, 2019

2012 journal article

Recommendations for Monte Carlo nucleosynthesis sampling

Astronomy & Astrophysics, 548, A30.

By: R. Longland

Source: ORCID
Added: August 12, 2019

2011 journal article

Improving theP30(p,γ)S31rate in oxygen-neon novae: Constraints onJπvalues for proton-threshold states inS31

Physical Review C, 83(4).

By: A. Parikh*, K. Wimmer*, T. Faestermann*, R. Hertenberger*, J. José*, R. Longland, H. Wirth*, V. Bildstein* ...

Source: ORCID
Added: August 12, 2019

2011 journal article

NUCLEOSYNTHESIS DURING THE MERGER OF WHITE DWARFS AND THE ORIGIN OF R CORONAE BOREALIS STARS

The Astrophysical Journal, 737(2), L34.

Source: ORCID
Added: August 12, 2019

2010 journal article

Charged-particle thermonuclear reaction rates: I. Monte Carlo method and statistical distributions

Nuclear Physics A, 841(1-4), 1–30.

By: R. Longland, C. Iliadis*, A. Champagne*, J. Newton*, C. Ugalde*, A. Coc*, R. Fitzgerald*

Source: ORCID
Added: August 12, 2019

2010 journal article

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

Nuclear Physics A, 841(1-4), 31–250.

By: C. Iliadis*, R. Longland, A. Champagne*, A. Coc* & R. Fitzgerald*

Source: ORCID
Added: August 12, 2019

2010 journal article

Charged-particle thermonuclear reaction rates: III. Nuclear physics input

Nuclear Physics A, 841(1-4), 251–322.

By: C. Iliadis*, R. Longland, A. Champagne* & A. Coc*

Source: ORCID
Added: August 12, 2019

2010 journal article

Charged-particle thermonuclear reaction rates: IV. Comparison to previous work

Nuclear Physics A, 841(1-4), 323–388.

By: C. Iliadis*, R. Longland, A. Champagne* & A. Coc*

Source: ORCID
Added: August 12, 2019

2010 journal article

Measurement ofO17(p,γ)F18between the narrow resonances atErlab=193and519 keV

Physical Review C, 81(4).

By: J. Newton*, C. Iliadis*, A. Champagne*, J. Cesaratto*, S. Daigle* & R. Longland

Source: ORCID
Added: August 12, 2019

2010 conference paper

Monte-Carlo Reaction Rate Evaluation for Astrophysics

Presented at the TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS—VII.

By: A. Coc*, C. Iliadis, R. Longland, A. Champagne, R. Fitzgerald*, H. Susa, M. Arnould, S. Gales ...

Event: TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS—VII

Sources: Crossref, ORCID
Added: February 5, 2020

2010 journal article

Photoexcitation of astrophysically important states inMg26. II. Ground-state-transition partial widths

Physical Review C, 82(2).

By: R. deBoer*, M. Wiescher*, J. Görres*, R. Longland, C. Iliadis*, G. Rusev*, A. Tonchev*

Source: ORCID
Added: August 12, 2019

2010 journal article

Ratio of germanium detector peak efficiencies at photon energies of 4.4 and 11.7MeV: Experiment versus simulation

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 618(1-3), 190–198.

By: S. Carson*, C. Iliadis*, J. Cesaratto*, A. Champagne*, L. Downen*, M. Ivanovic*, J. Kelley, R. Longland ...

Sources: ORCID, NC State University Libraries
Added: August 6, 2018

2010 journal article

Resonance strength inNe22(p,γ)Na23from depth profiling in aluminum

Physical Review C, 81(5).

By: R. Longland, C. Iliadis*, J. Cesaratto*, A. Champagne*, S. Daigle*, J. Newton*, R. Fitzgerald*

Source: ORCID
Added: August 12, 2019

2009 journal article

Photoexcitation of astrophysically important states inMg26

Physical Review C, 80(5).

By: R. Longland, C. Iliadis*, G. Rusev*, A. Tonchev*, R. deBoer*, J. Görres*, M. Wiescher*

Source: ORCID
Added: August 12, 2019

2009 journal article

Thermal equilibration ofLu176viaKmixing

Physical Review C, 80(1).

By: V. Gintautas*, A. Champagne*, F. Kondev* & R. Longland

Source: ORCID
Added: August 12, 2019

2008 journal article

Matching of experimental and statistical-model thermonuclear reaction rates at high temperatures

Physical Review C, 78(2).

By: J. Newton*, R. Longland & C. Iliadis*

Source: ORCID
Added: August 12, 2019

2007 journal article

Experimental evidence for a natural parity state inMg26and its impact on the production of neutrons for thesprocess

Physical Review C, 76(2).

By: C. Ugalde*, A. Champagne*, S. Daigle*, C. Iliadis*, R. Longland, J. Newton*, E. Osenbaugh-Stewart*, J. Clark* ...

Source: ORCID
Added: August 12, 2019

2007 journal article

Remeasurement of the 193 keV resonance inO17(p,α)N14

Physical Review C, 75(5).

By: J. Newton, C. Iliadis, A. Champagne, R. Longland & C. Ugalde

Source: ORCID
Added: August 12, 2019

2006 journal article

Nuclear astrophysics studies at the LENA facility: The -ray detection system

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 566(2), 452–464.

By: R. Longland, C. Iliadis*, A. Champagne*, C. Fox* & J. Newton*

Source: ORCID
Added: August 12, 2019

2005 journal article

Thermonuclear reaction rate ofO17(p,γ)F18

Physical Review C, 71(5).

By: C. Fox, C. Iliadis, A. Champagne, R. Fitzgerald, R. Longland, J. Newton, J. Pollanen, R. Runkle

Source: ORCID
Added: August 12, 2019

Employment

2020 - present

North Carolina State University Raleigh, North Carolina, US
Associate Professor Physics

2014 - 2020

NC State University Raleigh, NC, US
Assistant Professor Physics

2014 - 2014

North Carolina State University Raleigh, NC, US
Postdoctoral Researcher Physics

2013 - 2014

University of North Carolina at Chapel Hill Chapel Hill, NC, US
Postdoctoral Researcher Physics

2010 - 2013

Universitat Politècnica de Catalunya Barcelona, Catalunya, ES
Postdoctoral Researcher Physics

Education

2004 - 2010

University of North Carolina at Chapel Hill Chapel Hill, NC, US
Ph. D. Physics and Astronomy

2004 - 2006

University of North Carolina at Chapel Hill Chapel Hill, NC, US
M.S. Physics

Funding History

Funding history based on the linked ORCID record.

grant April 1, 2021 - March 31, 2024
Nuclear Structure Research at the Triangle Universities Nuclear Laboratory
Office of Nuclear Physics
grant September 1, 2017 - August 31, 2022
Measurements at the Facility for Experiments of Nuclear Reactions in Stars (FENRIS)
Office of Science