First Proton-Induced Cross Sections on a Stored Rare Ion Beam: Measurement of Te118(p,γ) for Explosive Nucleosynthesis

IF 9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Physical review letters Pub Date : 2025-04-09 DOI:10.1103/physrevlett.134.142701

S. F. Dellmann, J. Glorius, Yu. A. Litvinov, R. Reifarth, L. Varga, M. Aliotta, F. Amjad, K. Blaum, L. Bott, C. Brandau, B. Brückner, C. G. Bruno, R.-J. Chen, T. Davinson, T. Dickel, I. Dillmann, D. Dmytriev, P. Erbacher, O. Forstner, D. Freire-Fernández, H. Geissel, K. Göbel, C. J. Griffin, R. E. Grisenti, A. Gumberidze, E. Haettner, S. Hagmann, T. Heftrich, M. Heil, R. Heß, P.-M. Hillenbrand, C. Hornung, R. Joseph, B. Jurado, E. Kazanseva, K. Khasawneh, R. Knöbel, D. Kostyleva, C. Kozhuharov, I. Kulikov, N. Kuzminchuk, D. Kurtulgil, C. Langer, G. Leckenby, C. Lederer-Woods, M. Lestinsky, S. Litvinov, B. Löher, B. Lorentz, E. Lorenz, J. Marsh, E. Menz, T. Morgenroth, I. Mukha, N. Petridis, U. Popp, A. Psaltis, S. Purushothaman, E. Rocco, P. Roy, M. S. Sanjari, C. Scheidenberger, M. Sguazzin, R. S. Sidhu, U. Spillmann, M. Steck, T. Stöhlker, A. Surzhykov, J. A. Swartz, Y. Tanaka, H. Törnqvist, D. Vescovi, M. Volknandt, H. Weick, M. Weigand, P. J. Woods, T. Yamaguchi, J. Zhao

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Abstract

We present the first nuclear cross-section measurements of (p,γ) and (p,n) reactions on Te118 at energies relevant for the γ-process nucleosynthesis. Absolute cross-section values for center-of-mass energies of 6, 7 and 10 MeV are provided, together with a theoretical extrapolation to the Gamow window. This experiment marks the first time that direct proton-induced reactions have been measured on a radioactive ion beam at the Experimental Storage Ring (ESR) at GSI, Darmstadt. This paves the way for a large variety of measurements, delivering new constraints for explosive nucleosynthesis and for physics beyond nuclear stability.

Published by the American Physical Society

2025

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存储的稀有离子束上的首个质子诱导截面：测量用于爆炸性核合成的 Te118(p,γ)。

我们提出了Te118上与γ过程核合成能量相关的（p,γ）和（p,n）反应的第一个核截面测量。给出了6、7和10 MeV质心能量的绝对横截面值，以及对伽莫夫窗的理论外推。这个实验标志着首次在达姆施塔特GSI的实验存储环（ESR）的放射性离子束上测量直接质子诱导的反应。这为各种各样的测量铺平了道路，为爆炸性核合成和核稳定性以外的物理提供了新的限制。2025年由美国物理学会出版

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks

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