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The possibility to determine the pLambda scattering length from the final-state interaction in the reaction pp->pKLambda is investigated experimentally. From a transversely polarized measurement, the K analyzing power (A_N) which, in…

We reconsider a method based on dispersion theory, that allows one to extract the scattering length of any two-baryon system from corresponding final-state interactions in production reactions. The application of the method to baryon-baryon…

Nuclear Theory · Physics 2013-05-30 A. M. Gasparyan , J. Haidenbauer , C. Hanhart

The perspects of utilizing the strangeness-production reaction gamma d -> K^+ Lambda n for the determination of the Lambda n low-energy scattering parameters are investigated. The spin observables that need to be measured in order to…

Nuclear Theory · Physics 2008-11-26 A. Gasparyan , J. Haidenbauer , C. Hanhart , K. Miyagawa

Constraints on the spin-averaged $\Lambda p$ scattering length and effective range have been obtained from measurements of the $pp\to pK^+\Lambda$ reaction close to the production threshold by comparing model phase-space Dalitz plot…

The $\Lambda N$ invariant mass spectra for the reactions $K^-d\rightarrow\pi^-\Lambda p$ and $K^-d\rightarrow\pi^0\Lambda n$ are calculated for experimental study of isospin symmetry breaking in the $\Lambda N$ scattering at low energies,…

Nuclear Theory · Physics 2025-09-05 Shunsuke Yasunaga , Daisuke Jido , Takatsugu Ishikawa

The polarization of $\Lambda$ hyperons is preserved in the angular distribution of their decay products. This property allows one to study the spin structure of the $\Lambda$. In Semi-Inclusive Deep Inelastic Scattering where a high energy…

High Energy Physics - Experiment · Physics 2026-03-25 M. McEneaney , A. Vossen

We show that there is a correlation between the invariant mass of the produced \Lambda K^+, \Lambda K^+\pi^+\pi^- or \Lambda K^+ \pi^+\pi^-\pi^+\pi^- system in the exclusive reaction pp\to p\Lambda K^+\pi^+\pi^-\pi^+\pi^- and the…

High Energy Physics - Phenomenology · Physics 2015-06-25 Zuo-tang Liang , Tie-shi Li

The elastic scattering process $\Lambda p\to\Lambda p$ offers insights on multiple problems in nuclear physics. $\mathrm{SU}(3)_F$ symmetry implies a close agreement between the $\Lambda p$ and $pp$ scattering cross sections. The $\Lambda…

Nuclear Experiment · Physics 2019-09-04 John W. Price

Radiative capture of the K-minus by the deuteron as a reaction for measurement of the Lambda-neutron scattering lengths. The use of spin information to separate the singlet and triplet scattering lengths is treated.

Nuclear Theory · Physics 2009-11-06 W. R. Gibbs , S. A. Coon , H. K. Han , B. F. Gibson

The $\vec{p}p \rightarrow pK^{+}\Lambda$ reaction has been measured with the COSY-TOF detector at a beam momentum of $2.7\,\mathrm{GeV}/c$. The polarized proton beam enables the measurement of the beam analyzing power by the asymmetry of…

The $K^-d\rightarrow\pi\Lambda N$ reaction is useful for exploring the hyperon-nucleon interaction through final state interactions. In particular, the cusp structure of the $\Lambda N$ invariant mass spectrum at the $\Sigma N$ threshold…

Nuclear Theory · Physics 2025-01-27 Shunsuke Yasunaga , Daisuke Jido

Model independent expressions for all polarization observables in $\mu+p\to \mu+p$ elastic scattering are obtained, taking into account the lepton mass and including the two-photon exchange contribution. The spin structure of the matrix…

Nuclear Theory · Physics 2015-05-20 G. I. Gakh , M. Konchatnyi , A. Dbeyssi , E. Tomasi-Gustafsson

We study the $\pi^+ p$ elastic scattering process using an effective Lagrangian approach that incorporates the $s$-, $u$-, and $t$-channel amplitudes, including $\Delta^{++}(1232)$, $\Delta^{0}(1232)$, neutron, and $\rho^0$ contributions.…

High Energy Physics - Phenomenology · Physics 2025-12-09 Seung-il Nam

The study of the longitudinal polarization of Lambda and Lambda-bar hyperons produced in polarized deep inelastic scattering, neutrino scattering, and in Z0 decays allows to access the spin dynamics of the quark fragmentation process.…

High Energy Physics - Phenomenology · Physics 2011-09-13 A. Kotzinian , A. Bravar , D. von Harrach

A recently proposed method based on dispersion theory, that allows to extract the scattering length of a hadronic two-body system from corresponding final-state interactions, is generalized to the situation where the Coulomb interaction is…

Nuclear Theory · Physics 2009-11-11 A. Gasparyan , J. Haidenbauer , C. Hanhart

We discuss charge symmetry breaking in the $\Lambda N$ interaction. In order to investigate the $\Lambda p$ and $\Lambda n$ interactions at low energies, we propose to utilize the $K^-d\to \pi^-\Lambda p$ and $K^-d\to \pi^0\Lambda n$…

Nuclear Theory · Physics 2023-08-21 Yutaro Iizawa , Daisuke Jido , Takatsugu Ishikawa

The missing mass spectrum measured in high resolution studies of the reaction pp -> K^+X is analyzed with respect to the strong final state interaction near the Lambda p production threshold. The observed spectrum can be described by…

Nuclear Experiment · Physics 2009-11-10 F. Hinterberger , A. Sibirtsev

Fully constrained bubble chamber data on the pp -> pi+ pn and pp -> pi+ d reactions are used to investigate the ratio of the counting rates for the two processes as function of the pn excitation energy Q. Though it is important to include…

Nuclear Theory · Physics 2018-02-21 G. Faeldt , C. Wilkin

We investigate $\Lambda$ production in semi-inclusive deep-inelastic scattering using a polarized lepton beam and find that the spin transfer is significantly suppressed by target fragmentation. As further demonstrated by a model…

High Energy Physics - Phenomenology · Physics 2025-06-13 Xiaoyan Zhao , Zuo-tang Liang , Tianbo Liu , Ya-jin Zhou

It is argued that final state enhancements in production reactions at large momentum transfers, such as pp -> K^+ Lambda p, are primarily sensitive to the position of a virtual bound state pole in the Lambda p system rather than the Lambda…

Nuclear Theory · Physics 2017-03-01 G. Faldt , C. Wilkin
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