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The interaction of $\rm{K}^{-}$ with protons is characterised by the presence of several coupled channels, systems like ${\rm \overline{K}^0}$n and $\pi\Sigma$ with a similar mass and the same quantum numbers as the $\rm{K}^{-}$p state. The…

Nuclear Experiment · Physics 2023-05-09 ALICE Collaboration

We evaluate for the first time the $\eta^\prime p$ femtoscopic correlation function to study the $\eta^\prime N$ interaction. We find it extremely sensitive to the value of the $\eta^\prime p$ scattering length, for which at present there…

Nuclear Theory · Physics 2025-11-18 Natsumi Ikeno

An enhancement in the number of strange particles produced in relativistic heavy ion collisions is expected to coincide with the formation of a deconfined state of partonic matter. Measurements of transverse momentum spectra for strange…

Nuclear Experiment · Physics 2019-08-15 Richard Witt

Correlation functions measured as a function of $\Delta \eta, \Delta \phi$ have emerged as a powerful tool to study the dynamics of particle production in nuclear collisions at high energy. They are however subject, like any other…

Nuclear Experiment · Physics 2014-02-26 Shantam Ravan , Prabhat Pujahari , Sidharth Prasad , Claude A. Pruneau

Inclusive K+ production in proton-proton collisions has been measured at a beam energy of 2.16 GeV using the COSY-ANKE magnetic spectrometer. The resulting spectrum, as well as those corresponding to K+ p and K+ pi+ correlated pairs, can…

Recent experimental data show an unexpectedly large spin alignment of $\phi$ mesons in high-energy heavy-ion collisions, which can be explained by short-distance fluctuations of strong-force fields (vector $\phi$ fields) within the…

High Energy Physics - Phenomenology · Physics 2025-12-16 Xin-Li Sheng , Xiang-Yu Wu , Dirk H. Rischke , Xin-Nian Wang

It is well known that non-central nuclear forces, such as the spin-orbital coupling and the tensor force, play important roles in understanding many interesting features of nuclear structures. However, their dynamical effects in nuclear…

Nuclear Theory · Physics 2015-11-17 Jun Xu , Bao-An Li , Wen-Qing Shen , Yin Xia

We present results for the $p p \to p p \omega$ reaction studied by considering two different scenarios: with and without the inclusion of nucleon resonance excitations. The recently measured angular distribution by the COSY-TOF…

Nuclear Theory · Physics 2009-11-07 K. Tsushima , K. Nakayama

We study the polarization of hyperon in different processes in singly polarized $pp$ collisions, in particular its relation to the polarized parton distributions. We show that by measuring hyperon polarization in particularly chosen…

High Energy Physics - Phenomenology · Physics 2009-11-10 Qing-hua Xu , Zuo-tang Liang

In our earlier work [Phys. Rev. C \textbf{98}, 045209 (2018)], we analyzed the differential cross-section data from the CLAS Collaboration for the reactions $\gamma p \to K^{*+}\Sigma^0$ and $\gamma p \to K^{*0} \Sigma^+$ using an effective…

High Energy Physics - Phenomenology · Physics 2026-04-01 Ai-Chao Wang , Neng-Chang Wei , Fei Huang

We propose to use an internal polarized hydrogen storage cell gas target in the AD ring to determine for the first time the two total spin-dependent pbar-p cross sections sigma_1 and sigma_2 at antiproton beam energies in the range from 50…

Nuclear Experiment · Physics 2019-08-13 C. Barschel , U. Bechstedt , J. Dietrich , N. Dolfus , R. Engels , R. Gebel , H. Hadamek , J. Haidenbauer , C. Hanhart , A. Kacharava , G. Krol , M. Kueven , G. Langenberg , A. Lehrach , B. Lorentz , R. Maier , S. Martin , U. -G. Meissner , M. Nekipelov , N. N. Nikolaev , D. Oellers , G. d'Orsaneo , D. Prasuhn , F. Rathmann , M. Retzlaff , J. Sarkadi , R. Schleichert , H. Seyfarth , A. Sibirtsev , D. Spoelgen , H. J. Stein , H. Stockhorst , H. Stroeher , Chr. Weidemann , D. Welsch , P. Wieder , L. Barion , S. Bertelli , V. Carassiti , G. Ciullo , M. Contalbrigo , A. Cotta-Ramusino , P. F. Dalpiaz , A. Drago , G. Guidoboni , P. Lenisa , L. Pappalardo , G. Stancari , M. Stancari , M. Statera , T. Azarian , A. Kulikov , V. Kurbatov , G. Macharashvili , S. Merzliakov , I. N. Meshkov , A. Smirnov , D. Tsirkov , Yu. Uzikov , S. Barsov , S. Belostotski , K. Grigoryev , P. Kravtsov , M. Mikirtychiants , S. Mikirtychiants , A. Vasilyev , F. M. Esser , R. Greven , G. Hansen , F. Jadgfeld , F. Klehr , H. Soltner , H. Straatmann , D. Chiladze , A. Garishvili , N. Lomidze , D. Mchedlishvili , M. Nioradze , M. Tabidze , N. Akopov , A. Avetisyan , G. Elbakyan , H. Marukyan , S. Taroian , P. Benati , W. Erven , F. J. Kayser , H. Kleines , P. Wuestner , D. Bruncko , J. Ferencei , J. Musinsky , J. Urban , W. Augustyniak , B. Marianski , A. Trzcinski , P. Zupranski , S. Dymov , A. Nass , E. Steffens , K. Rathsman , P. E. Tegner , P. Thoerngren Engblom , R. De Leo , G. Tagliente , B. Kaempfer , S. Trusov , N. Buttimore , H. O. Meyer

Hyperon ($Y=\Sigma,\Lambda$)-nucleon ($N=n,p$) interactions are crucial for understanding the existence of neutron stars heavier than two solar masses. Amid renewed experimental efforts, we study $YN$ scatterings from the perspective of…

High Energy Physics - Phenomenology · Physics 2024-08-19 Qiaofeng Liu , Ian Low

In this paper we investigate methods to study the $t\bar{t}$ Higgs coupling. The spin and CP properties of a Higgs boson are analysed in a model-independent way in its associated production with a $t\bar{t}$ pair in high-energy $e^+e^-$…

High Energy Physics - Phenomenology · Physics 2015-05-27 R. M. Godbole , C. Hangst , M. Muhlleitner , S. D. Rindani , P. Sharma

The cross sections for the reactions of the strange production p + p -> p + Lambda + K^+ and p + p -> p + Sigma^0 + K^+ near thresholds of the final states p Lambda K^+ and p Sigma^0 K^+ are calculated in the effective Lagrangian approach.…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Ya. Berdnikov , Ya. A. Berdnikov , A. N. Ivanov , V. F. Kosmach , M. D. Scadron , N. I. Troitskaya

The nucleon spin polarization perpendicular to the reaction plane ($P_y$) and along the beam direction ($P_z$) in Au+Au collisions at the beam energy of 100A MeV with different nuclear spin-orbit interactions has been studied based on a…

Nuclear Theory · Physics 2025-02-21 Jun Xu

In these proceedings, a measurement of two-particle correlations with a high transverse momentum trigger particle (pT_trig > 2.5 GeV/c) is presented for Au+Au collisions at sqrt(s_NN) = 200 GeV over the uniquely broad longitudinal…

Nuclear Experiment · Physics 2019-08-13 Edward Wenger

Transverse single spin asymmetries of particles produced in $p+p^{\uparrow}$ collisions provide insight on the partonic spin and momentum structure of hadrons; heavy flavor electrons provide access to initial state spin-momentum…

High Energy Physics - Experiment · Physics 2022-03-14 Dillon Fitzgerald

Starting from the experimental evidence that high-energy nucleus-nucleus collisions cannot be described in terms of superpositions of elementary nucleon-nucleon interactions, we analyze the possibility that memory effects and long-range…

Nuclear Theory · Physics 2009-01-07 W. M. Alberico , A. Lavagno , P. Quarati

To explore the strength, isospin dependence, and density dependence of the in-medium spin-orbit coupling that is poorly known but relevant for understanding the structure of rare isotopes, the nucleon spin up-down differential transverse…

Nuclear Theory · Physics 2014-06-19 Yin Xia , Jun Xu , Bao-An Li , Wen-Qing Shen

Resonance parameters (pole masses and residues) associated with the excited states of hyperons, Lambda^* and Sigma^*, are extracted within a dynamical coupled-channels model developed recently by us [Phys. Rev. C 90, 065204 (2014)] through…

Nuclear Theory · Physics 2015-08-13 H. Kamano , S. X. Nakamura , T. -S. H. Lee , T. Sato
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