Constraining the Synthesis of the Lightest <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>p</mml:mi> </mml:math> Nucleus <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mm
We provide the first experimental cross section of the ^{73}As(p,γ)^{74}Se reaction to constrain one of the main destruction mechanisms of the p nucleus ^{74}Se in explosive stellar environments. The measurement was done using a radioactive ^{73}As beam at effective center-of-mass energies of 2.9 and 2.3 MeV/nucleon. Along with the total cross-section measurement, statistical properties of the ^{74}Se compound nucleus were extracted, constraining the reaction cross section in the upper Gamow window of the γ process. The impact of the experimentally constrained reaction rate on ^{74}Se production in Type II supernovae was investigated through Monte Carlo one-zone network simulations. The results indicate that the overproduction of ^{74}Se by Type II supernova models cannot be resolved by nuclear physics alone and point toward the need for a more detailed understanding of the astrophysical conditions of relevance for the γ process.
Authors
- A. Tsantiri (ORCID: https://orcid.org/0000-0002-9759-3476)
- A. Psaltis (ORCID: https://orcid.org/0000-0003-2197-0797)
- G. Owens-Fryar (ORCID: https://orcid.org/0000-0001-6728-6494)
- Ana Henriques (ORCID: https://orcid.org/0000-0002-2421-4308)
- R. Jain (ORCID: https://orcid.org/0000-0001-9859-1512)
- A. C. C. Villari (ORCID: https://orcid.org/0000-0003-2914-7471)
- Samuel Nash (ORCID: https://orcid.org/0009-0008-9778-8215)
- K. Bosmpotinis (ORCID: https://orcid.org/0000-0002-9807-0001)
- A. A. Doetsch (ORCID: https://orcid.org/0000-0001-7223-789X)
- H. Arora (ORCID: https://orcid.org/0000-0001-6183-658X)
- C. Dembski (ORCID: https://orcid.org/0000-0001-9171-9421)
- R. G. T. Zegers (ORCID: https://orcid.org/0000-0001-6076-5898)
- H. Schatz (ORCID: https://orcid.org/0000-0003-1674-4859)
- P. Tsintari (ORCID: https://orcid.org/0000-0001-5121-3661)
- H. C. Berg (ORCID: https://orcid.org/0000-0003-2090-1255)
- E. Good (ORCID: https://orcid.org/0000-0001-7765-6188)
- F. Montes (ORCID: https://orcid.org/0000-0001-9849-5555)
- Lorenzo Roberti (ORCID: https://orcid.org/0000-0003-0390-8770)
- A. Richard (ORCID: https://orcid.org/0000-0001-8308-688X)
- Pablo Giuliani (ORCID: https://orcid.org/0000-0002-8145-0745)
- Lauren Balliet (ORCID: https://orcid.org/0000-0002-1081-1259)
- C. S. Sumithrarachchi
- M. Smith (ORCID: https://orcid.org/0009-0008-3410-4306)
- T. Gaballah (ORCID: https://orcid.org/0009-0003-2846-5117)
- R. S. Lubna (ORCID: https://orcid.org/0000-0003-4976-3976)
- A. Spyrou (ORCID: https://orcid.org/0000-0002-8642-8352)
- S. Lyons (ORCID: https://orcid.org/0000-0002-0194-261X)
- A. Palmisano-Kyle (ORCID: https://orcid.org/0000-0002-3844-7540)
- Belen Monteagudo Godoy (ORCID: https://orcid.org/0009-0009-5851-3574)
- E. K. Ronning (ORCID: https://orcid.org/0009-0006-4672-5834)
- S. N. Liddick
- S. Uthayakumaar (ORCID: https://orcid.org/0000-0002-3154-0734)
- Pavel A. Denissenkov (ORCID: https://orcid.org/0000-0001-6120-3264)
- P. A. DeYoung (ORCID: https://orcid.org/0000-0001-9899-0716)
- G. Balk (ORCID: https://orcid.org/0009-0008-6239-9105)
- Jorge A. Pereira (ORCID: https://orcid.org/0000-0002-0159-4133)
- R. Garg (ORCID: https://orcid.org/0000-0003-0900-7965)
- M. K. Smith (ORCID: https://orcid.org/0000-0002-4552-7549)
- J. M. Berkman (ORCID: https://orcid.org/0009-0001-9753-0096)
- Ana Arribas Sebastián
- C. Tinson (ORCID: https://orcid.org/0009-0003-4298-1628)
- N. Dimitrakopoulos (ORCID: https://orcid.org/0009-0002-0433-0659)
- N. Tubaro (ORCID: https://orcid.org/0009-0008-5089-6446)
- E. Weissling (ORCID: https://orcid.org/0009-0006-0209-2027)
- G. U. Ogudoro (ORCID: https://orcid.org/0009-0004-6786-3238)
Institutions
- University of Notre Dame (US)
- Pacific Northwest National Laboratory (US)
- Hope College (US)
- Central Michigan University (US)
- Duke University (US)
- University of Victoria (CA)
- Konkoly Observatory (HU)
- Triangle Universities Nuclear Laboratory (US)
- Caporal Assistance Network (US)
- Ohio University (US)
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud (IT)
- Centralsjukhuset Kristianstad (SE)
- Facility for Rare Isotope Beams
- University of Tennessee at Knoxville (US)
- Michigan State University (US)
- National Institute for Astrophysics (IT)
- Mississippi State University (US)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-11-20
- DOI
- https://doi.org/10.1103/d7dr-h36j
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00