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Related papers: Novel constraints on $\Lambda\bar{\Lambda}$ and $p…

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The interaction between $\Lambda$ baryons and kaons/antikaons is a crucial ingredient for the strangeness $S=0$ and $S=-2$ sector of the meson$-$baryon interaction at low energies. In particular, the $\Lambda{\mathrm{\overline{K}}}$ might…

Nuclear Experiment · Physics 2023-10-12 ALICE Collaboration

We present a new analysis framework called "Correlation Analysis Tool using the Schr\"odinger equation" (CATS) which computes the two-particle femtoscopy correlation function $C(k)$, with $k$ being the relative momentum for the particle…

High Energy Physics - Phenomenology · Physics 2018-06-13 D. L. Mihaylov , V. Mantovani Sarti , O. W. Arnold , L. Fabbietti , B. Hohlweger , A. M. Mathis

In quantum scattering processes between two particles, aspects characterizing the strong and Coulomb forces can be observed in kinematic distributions of the particle pairs. The sensitivity to the interaction potential reaches a maximum at…

Nuclear Experiment · Physics 2021-12-17 ALICE Collaboration

The status of hadron-hadron interactions is reviewed, with emphasis on the forward and near-forward scattering regions. From analyticity, Finite Energy Sum Rules are introduced from which new analyticity constraints are derived that exploit…

High Energy Physics - Phenomenology · Physics 2008-11-26 Martin M. Block

The source radii, previously extracted by STAR Collaboration from the $p-\Lambda \oplus \bar{p}-\bar{\Lambda}$ and $\bar{p}-\Lambda \oplus p-\bar{\Lambda}$ correlation functions measured in 10% most central Au+Au collisions at top RHIC…

Nuclear Theory · Physics 2015-09-23 V. M. Shapoval , B. Erazmus , R. Lednicky , Yu. M. Sinyukov

In the first part of the thesis we consider the constraints of causality and unitarity for particles interacting via strictly finite-range interactions. We generalize Wigner's causality bound to the case of non-vanishing partial-wave…

Nuclear Theory · Physics 2014-09-16 Serdar Elhatisari

We present an overview of recent efforts to calculate the interactions among hadrons using lattice QCD. After outlining the techniques that are used to extract scattering parameters, we detail the latest calculations of meson-meson…

High Energy Physics - Lattice · Physics 2008-12-18 Silas R. Beane , Kostas Orginos , Martin J. Savage

The theoretical analysis of $\bar{p}-\Lambda \oplus p-\bar{\Lambda}$ correlation function in 10% most central Au+Au collisions at RHIC energy $\sqrt{s_{NN}}=200$ GeV shows that the contribution of residual correlations is the necessary…

High Energy Physics - Phenomenology · Physics 2015-10-28 V. M. Shapoval , Yu. M. Sinyukov , V. Yu. Naboka

Experimental data on proton-proton interactions in high energy collisions show quite a special and unexpected behaviour of the proportion of elastic scattering compared to inelastic processes with increasing energy. It decreases at the…

High Energy Physics - Phenomenology · Physics 2017-08-02 I. M. Dremin

The ratios of yields of anti-baryons to baryons probes the mechanisms of baryon-number transport. Results for $\bar{\rm p}/{\rm p}$, $\bar{\rm \Lambda}/{\rm \Lambda}$, $\rm\bar{\Xi}$$^{+}/{\rm \Xi}^{-}$ and $\rm\bar{\Omega}$$^{+}/{\rm…

Nuclear Experiment · Physics 2014-09-23 ALICE Collaboration

In this work we present the study of $p\Lambda$ and $pp\Lambda$ scattering processes using femtoscopic correlation functions. This observable has been recently used to access the low-energy interaction of hadrons emitted in the final state…

The interactions between two octet baryons are studied at low energies using lattice QCD (LQCD) with larger-than-physical quark masses corresponding to a pion mass of $m_{\pi}\sim 450$ MeV and a kaon mass of $m_{K}\sim 596$ MeV. The…

We point out that the variance of net-baryon distribution normalized by the Skellam distribution baseline, $\kappa_2[B-\bar{B}]/\langle B+\bar{B}\rangle$, is sensitive to the possible modification of (anti)baryon yields due to $B\bar{B}$…

High Energy Physics - Phenomenology · Physics 2022-03-22 Oleh Savchuk , Volodymyr Vovchenko , Volker Koch , Jan Steinheimer , Horst Stoecker

Constraints on a possible fifth-force interaction between hadrons are derived based on an analysis of results from laser precision frequency measurements of antiprotonic helium atoms, both $\bar{p}\,^{4}$He$^{+}$ and $\bar{p}\,^{3}$He$^{+}$…

High Energy Physics - Phenomenology · Physics 2015-06-16 E. J. Salumbides , W. Ubachs , V. I. Korobov

Based on the behavior of the elastic scattering data, we introduce an almost model-independent parametrization for the imaginary part of the scattering amplitude, with the energy and momentum transfer dependences inferred on empirical basis…

High Energy Physics - Phenomenology · Physics 2009-01-07 R. F. Avila , S. D. Campos , M. J. Menon , J. Montanha

In lattice QCD, both direct method and HAL QCD method are used to investigate the two-baryon systems. We show that due to the contamination of the scattering excited states, it is challenging to measure the eigenenergy from the temporal…

High Energy Physics - Lattice · Physics 2018-11-16 Takumi Iritani , for HAL QCD Collaboration

In a finite volume, resonances and multi-hadron states are identified by discrete energy levels. When comparing the results of lattice QCD calculations to scattering experiments, it is important to have a way of associating the energy…

High Energy Physics - Lattice · Physics 2015-03-20 J. M. M. Hall , A. C. -P. Hsu , D. B. Leinweber , A. W. Thomas , R. D. Young

Recently the AMS-02 collaboration has published the measurement of the cosmic antiproton to proton ratio $\bar{p}/p$ and the $\bar{p}$ flux with a high precision up to $\sim 450\,\mathrm{GeV}$. In this work, we perform a systematic analysis…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Su-Jie Lin , Xiao-Jun Bi , Jie Feng , Peng-Fei Yin , Zhao-Huan Yu

The strong interaction among hadrons has been measured in the past by scattering experiments. Although this technique has been extremely successful in providing information about the nucleon-nucleon and pion-nucleon interactions, when…

Nuclear Experiment · Physics 2021-09-28 L. Fabbietti , V. Mantovani Sarti , O. Vazquez Doce

First data on inclusive particle production measured in proton-proton collisions at the Large Hadron Collider (LHC) are compared to predictions of various hadron-interaction Monte Carlos (QGSJET, EPOS and SIBYLL) used commonly in…

High Energy Physics - Phenomenology · Physics 2015-05-28 David d'Enterria , Ralph Engel , Tanguy Pierog , Sergey Ostapchenko , Klaus Werner