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We study the gamma p ---> K^+ Lambda(1405) reaction at energies close to threshold using a chiral unitary model where the resonance is generated dynamically from K^-p interaction with other channels constructed from the octets of baryons…

核理论 · 物理学 2009-10-31 J. C. Nacher , E. Oset , H. Toki , A. Ramos

It is shown that the new data on the excitation energy Eex spectrum of the residual nuclear system in the Sigma-hypernuclear region in the reactions (K-,pi+-) on Be-9 and in the reaction (K-,pi+) on He-4 and C-12 can be described without…

核理论 · 物理学 2009-10-31 O. D. Dalkarov , V. M. Kolybasov

We present an analysis of $\Xi^-$ baryon production in subthreshold proton--nucleus ($p+A$) collisions in the framework of a BUU type transport model. We propose a new mechanism for $\Xi$ production in the collision of a secondary $\Lambda$…

核理论 · 物理学 2018-09-11 Miklós Zétényi , György Wolf

The production of backward pions in lepton-nucleus collisions is analyzed. We show that a large yield of high momentum backward pions can be explained by the Regge asymptotic of the distribution of nucleons carrying a large momentum…

核理论 · 物理学 2014-11-18 O. Benhar , S. Fantoni , G. I. Lykasov

The experimental data from the 2m propane bubble chamber have been analyzed for pC$\to \Lambda(K^0_s)X$ reactions at 10 GeV/c. The estimation of experimental inclusive cross sections for $\Lambda$ and $K^0_s$ production in the p$^{12}C$…

高能物理 - 实验 · 物理学 2016-08-31 P. Zh. Aslanyan , V. N. Emelyanenko , G. G. Rikhkvitzkaya

The $\Lambda^{\ast}$-hypernuclei, which are bound states of $\Lambda(1405)$ and nuclei, are discussed as a possible interpretation of the $\bar{K}$-nuclei. The Bonn and Nijmegen potentials are extended and used as a phenomenological…

核理论 · 物理学 2008-11-26 A. Arai , M. Oka , S. Yasui

The reaction $\gamma p \TO K^+\Lambda(1520)$ was measured in the energy range from threshold to 2.65 GeV with the SAPHIR detector at the electron stretcher facility ELSA in Bonn. The $\Lambda(1520)$ production cross section was analyzed in…

Double-differential cross sections of neutron production at angles from 0 to 110 degrees from many reactions induced by light and medium nuclei on targets from 12-C to 208-Pb, at several incident energies from 95 to 600 MeV/A have been…

The elementary production cross sections $\pi \Delta \rightarrow Y K$ $(Y=\Sigma,\,\, \Lambda)$ and $\pi N \rightarrow Y K$ are needed to describe kaon production in heavy ion collisions. The $\pi N \rightarrow Y K$ reactions were studied…

核理论 · 物理学 2009-10-28 K. Tsushima , S. W. Huang , Amand Faessler

We study phenomenologically a $\Xi^-$ production spectrum of the $^9$Be($K^-$, $K^+$) reaction at 1.8 GeV/$c$ within the distorted-wave impulse approximation using the optimal Fermi-averaged $K^- p \to K^+ \Xi^-$ amplitude. We attempt to…

核理论 · 物理学 2021-02-10 Toru Harada , Yoshiharu Hirabayashi

We study the productions of $\Lambda$-hypernuclei $^3_{\Lambda}$H, $^4_{\Lambda}$H and $^4_{\Lambda}$He in the coalescence mechanism in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV. Considering the abundance and great importance of baryons and…

核理论 · 物理学 2025-04-21 Rui-Qin Wang , Jun Song , Mao-Yan Wu , Huai-Tong Xue , Feng-Lan Shao

Based on our Faddeev-Yakubowsky calculations of four-body kaonic nuclear systems it was revealed that the structure of K-K-pp is well approximated by two Lambda*=K-p's with strong mutual attraction. It is vitally important to study this…

核实验 · 物理学 2017-08-02 Shuji Maeda , Yoshinori Akaishi , Toshimitsu Yamazaki

In the absence of accurate data on the free two-body hyperon-nucleon interaction, the spectra of hypernuclei can provide information on the details of the effective hyperon-nucleon interaction. Electroproduction of the hypernucleus…

Using the four-body Alt-Grassberger-Sandhas (AGS) equations for the \( K^{-}ppn \) system, we investigate the possible formation of a \( K^{-}pp \) quasi-bound state through the low-energy \( K^{-} + {}^{3}\mathrm{He} \) reaction. The…

核理论 · 物理学 2026-02-24 Sajjad Marri , Ahmad Naderi Beni

The K^- induced production of Lambda(1405) in the K^- d to pi Sigma n reaction is investigated having in mind the conditions of the DAFNE facility at Frascati where kaons are obtained from the decay of slow moving phi mesons. We find that…

核理论 · 物理学 2011-03-22 D. Jido , E. Oset , T. Sekihara

The reaction $ep \to e'K^+\Lambda(1520)$ with $\Lambda(1520) \to p'K^-$ was studied at electron beam energies of 4.05, 4.25, and 4.46 GeV, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cos$\theta_{K^+}$,…

高能物理 - 实验 · 物理学 2010-04-06 S. P. Barrow

We estimate the cross sections for the inclusive production of $\Theta^+$ and $\Lambda(1520)$ in $pp$ collisions at high energy using the $K$ exchange diagrams. We find that inclusive $\Theta^+$ production should be at the level of 1 $\mu$b…

高能物理 - 唯象学 · 物理学 2009-11-11 I. M. Narodetskii , M. A. Trusov

We investigate the reaction mechanism of $K^0 \Lambda$ photoproduction off the neutron target, i.e., $\gamma n \to K^0 \Lambda$, in the range of $W\approx 1.6-2.2$ GeV. We employ an effective Lagrangian method at the tree-level Born…

高能物理 - 唯象学 · 物理学 2020-01-08 Sang-Ho Kim , Hyun-Chul Kim

We report results of $\Lambda$ hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the Continuous Electron Beam Accelerator Facility 5.014~GeV…

核实验 · 物理学 2023-04-18 T. Chetry , L. El Fassi , W. K. Brooks , R. Dupré , A. El Alaoui , K. Hafidi , P. Achenbach , K. P. Adhikari , Z. Akbar , W. R. Armstrong , M. Arratia , H. Atac , H. Avakian , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , M. Battaglieri , I. Bedlinskiy , B. Benkel , F. Benmokhtar , A. Bianconi , A. S. Biselli , M. Bondi , W. A. Booth , F. Bossù , S. Boiarinov , K. -Th. Brinkmann , W. J. Briscoe , D. Bulumulla , V. D. Burkert , D. S. Carman , J. C. Carvajal , A. Celentano , P. Chatagnon , V. Chesnokov , G. Ciullo , P. L. Cole , M. Contalbrigo , G. Costantini , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , C. Djalali , H. Egiyan , L. Elouadrhiri , P. Eugenio , S. Fegan , A. Filippi , G. Gavalian , Y. Ghandilyan , G. P. Gilfoyle , D. I. Glazier , A. A. Golubenko , G. Gosta , R. W. Gothe , K. A. Griffioen , M. Guidal , L. Guo , H. Hakobyan , M. Hattawy , T. B. Hayward , D. Heddle , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , D. Jenkins , H. S. Jo , M. L. Kabir , A. Khanal , M. Khandaker , A. Kim , W. Kim , F. J. Klein , A. Kripko , V. Kubarovsky , V. Lagerquist , L. Lanza , M. Leali , S. Lee , P. Lenisa , X. Li , K. Livingston , I. J. D. MacGregor , D. Marchand , V. Mascagna , B. McKinnon , C. McLauchlin , Z. E. Meziani , S. Migliorati , T. Mineeva , M. Mirazita , V. Mokeev , C. Munoz Camacho , P. Nadel-Turonski , K. Neupane , S. Niccolai , M. Nicol , G. Niculescu , M. Osipenko , A. I. Ostrovidov , P. Pandey , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , W. Phelps , N. Pilleux , M. Pokhrel , J. Poudel , J. W. Price , Y. Prok , B. A. Raue , T. Reed , J. Richards , M. Ripani , J. Ritman , G. Rosner , F. Sabatié , C. Salgado , S. Schadmand , A. Schmidt , R. A. Schumacher , Y. G. Sharabian , E. V. Shirokov , U. Shrestha , P. Simmerling , D. Sokhan , N. Sparveris , S. Stepanyan , I. I. Strakovsky , S. Strauch , J. A. Tan , N. Trotta , R. Tyson , M. Ungaro , S. Vallarino , L. Venturelli , H. Voskanyan , E. Voutier , X. Wei , L. B. Weinstein , R. Williams , R. Wishart , M. H. Wood , N. Zachariou , Z. W. Zhao , M. Zurek

Results for response functions for kaon electroproduction on the proton are presented. A tree-level hadrodynamical model is adopted and it is shown that some of the electroproduction response functions are particularly powerful with the eye…

核理论 · 物理学 2009-11-10 S. Janssen , J. Ryckebusch , T. Van Cauteren
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