\(K^+\Lambda (1520)\) photoproduction at forward angles near threshold with the BGOOD experiment

IF 2.8 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-06-24 DOI:10.1140/epja/s10050-025-01613-6

E. O. Rosanowski, T. C. Jude, S. Alef, A. J. Clara Figueiredo, D. D. Burdeinyi, P. L. Cole, R. Di Salvo, D. Elsner, A. Fantini, O. Freyermuth, F. Frommberger, V. B. Ganenko, F. Ghio, J. Groß, K. Kohl, P. Levi Sandri, G. Mandaglio, R. Messi, D. Moricciani, P. Pedroni, B.-E. Reitz, M. Romaniuk, G. Scheluchin, H. Schmieden, A. Sonnenschein

引用次数: 0

Abstract

The differential cross section for \(\gamma p\rightarrow K^+\Lambda (1520)\) was measured from threshold to a centre-of-mass energy of 2090 MeV at forward angles at the BGOOD experiment. The high statistical precision and resolution in centre-of-mass energy and angle allows a detailed characterisation of this low-momentum transfer kinematic region. The data agree with a previous LEPS measurement and support effective Lagrangian models that indicate that the contact term dominates the cross section near threshold.

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\(K^+\Lambda (1520)\) BGOOD实验中接近阈值前角的光产生

在BGOOD实验中测量了\(\gamma p\rightarrow K^+\Lambda (1520)\)在前角下从阈值到质心能量为2090 MeV的微分截面。在质心能量和角度的高统计精度和分辨率允许这个低动量传递运动学区域的详细特征。该数据与先前的LEPS测量结果一致，并支持有效的拉格朗日模型，该模型表明接触项在阈值附近的截面上占主导地位。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal A 物理-物理：核物理

CiteScore

5.00

自引率

18.50%

发文量

216

审稿时长

3-8 weeks

期刊介绍： Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.