English
Related papers

Related papers: Spin observables in the $pn \to p \Lambda$ reactio…

200 papers

The difference between the $\Lambda$ and $\bar \Lambda$ longitudinal spin transfers in the semi-inclusive deep inelastic scattering process is intensively studied. The study is performed in the current fragmentation region, by considering…

High Energy Physics - Phenomenology · Physics 2014-12-18 Yujie Chi , Xiaozhen Du , Bo-Qiang Ma

Nonmesonic weak decays of the A=4, and 5 hypernuclei are studied. The short range parts of the hyperon-nucleon weak interactions are described by the direct quark (DQ) weak transition potential, while the longer range interactions are given…

Nuclear Theory · Physics 2009-11-07 K. Sasaki , T. Inoue , M. Oka

The formalism describing the scattering of two spin-1/2 objects is reviewed for the case of antilambda-lambda production from antiproton-proton annihilation. It is shown that an experiment utilizing a transverse target polarization can, in…

High Energy Physics - Experiment · Physics 2009-10-31 Kent Paschke , Brian Quinn

We develop a theoretical framework for the evaluation of the coincidence number of pairs, $N_{nN}$, and the asymmetry parameter, $a_\Lambda$, in nonmesonic hypernuclear decay $\Lambda N\rightarrow nN$. The primary nomesonic weak…

Nuclear Theory · Physics 2010-05-06 C. Barbero , A. Mariano , S. B. Duarte

We compute numerically the second and third order nonlinear magnetic susceptibilities of an Ising ladder model in the context of two-dimensional coherent spectroscopy by using the infinite time-evolving block decimation method. The Ising…

Strongly Correlated Electrons · Physics 2023-04-26 Qi Gao , Yang Liu , Haijun Liao , Yuan Wan

This work provides the first combined analysis of low-energy p$\Lambda$ scattering, considering both cross section and correlation data. The obtained results establish the most stringent constraints to date on the two-body p$\Lambda$…

Nuclear Theory · Physics 2024-11-01 D. L. Mihaylov , J. Haidenbauer , V. Mantovani Sarti

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 quark-model hyperon-nucleon interaction suggests an important antisymmetric spin-orbit component. It is generated from a color analogue of the Fermi-Breit interaction dominating in the one-gluon exchange process between quarks. We…

Nuclear Theory · Physics 2009-10-31 Y. Fujiwara , M. Kohno , T. Fujita , C. Nakamoto , Y. Suzuki

The $|\Delta S|=1$ $\Lambda N$ interaction, responsible for the decay of hypernuclei, is studied by means of an Effective Field Theory where the long range physics is described by pion and kaon exchange mechanisms, and its short range…

Nuclear Theory · Physics 2007-05-23 A. Parreno , C. Bennhold , B. R. Holstein

Spin and pseudospin symmetries in the spectra of nucleons and antinucleons are studied in a relativistic mean-field theory with scalar and vector Woods-Saxon potentials, in which the strength of the latter is allowed to change. We observe…

Nuclear Theory · Physics 2014-11-20 R. Lisboa , M. Malheiro , P. Alberto , M. Fiolhais , A. S. de Castro

We study the CP-violating terms of the spin-spin correlations in neutralino production and their subsequent two-body decays into sleptons plus leptons at the ILC. We analyze CP-sensitive observables with the help of T-odd products of the…

High Energy Physics - Phenomenology · Physics 2009-07-24 A. Bartl , K. Hohenwarter-Sodek , T. Kernreiter , O. Kittel , M. Terwort

A dynamic process of repeating collisions of a pair of trapped neutral particles with weak spin-dependent interaction is designed and studied. Related theoretical derivation and numerical calculation have been performed to study the…

Other Condensed Matter · Physics 2015-05-14 Zhibing Li , Zhifeng Chen , Yanzhang He , Chengguang Bao

The longstanding problem of explaining the observed polarization of Lambda hyperons inclusively produced in the high energy collisions of unpolarized hadrons is tackled by considering spin and k_T dependent quark fragmentation functions.…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Anselmino , D. Boer , U. D'Alesio , F. Murgia

Recent work on using density dependent $\Lambda$-nuclear optical potentials in calculations of $\Lambda$-hypernuclear binding energies is reviewed. It is found that all known $\Lambda$ binding energies in the mass range $16 \leq A \leq 208$…

Nuclear Theory · Physics 2026-02-11 Eliahu Friedman , Avraham Gal

We investigate the role of spin-dependent nucleon-nucleus interactions in nuclear reactions. To this end, we use neutron spin observables to constrain the dominant central spin-spin form factors and then apply the corresponding like-channel…

Nuclear Theory · Physics 2026-05-28 Kyoungsu Heo , Myung-Ki Cheoun , Kouichi Hagino

We present a collection of $\mathrm{CP}$-odd observables for the process $pp\to t\,\left(\rightarrow b {\ell}^+ \nu_{\ell}\right) \bar{t}\,\left(\rightarrow \bar{b} {\ell}^-{\bar{\nu}}_{\ell}\right)\,H$ that are linearly dependent on the…

High Energy Physics - Phenomenology · Physics 2016-07-27 Nicolas Mileo , Ken Kiers , Alejandro Szynkman , Daniel Crane , Ethan Gegner

The transverse polarization observed in the inclusive production of Lambda hyperons in the high energy collisions of unpolarized hadrons is tackled by considering a new set of spin and kT dependent quark fragmentation functions. Simple…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Anselmino , D. Boer , U. D'Alesio , F. Murgia

A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Lambda-hypernuclei. We adopt a nuclear matter formalism extended to finite…

Nuclear Theory · Physics 2015-03-19 E. Bauer , G. Garbarino

We review the density matrix formalism and the positivity conditions for general multiple spin asymmetries, taking as an example the case antiproton + proton -> antiLambda + Lambda, in which one, two or three spins are analyzed. Some…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xavier ARTRU , Jean-Marc RICHARD

An effective model is used to study the equation of state of warm strange hadronic matter with nucleons, Lambda-hyperons, Xi-hyperons, sigmastar and phi. In the calculation, a newest weak Y-Y interaction deduced from the recent observation…

Nuclear Theory · Physics 2009-11-10 Wei Liang Qian , Ru-Keng Su , Hong Qiu Song
‹ Prev 1 3 4 5 6 7 10 Next ›