Towards the understanding of the genuine three-body interaction for p$-$p$-$p and p$-$p$-\Lambda$

Abstract

Three-body nuclear forces play an important role in the structure of nuclei and hypernuclei and are also incorporated in models to describe the dynamics of dense baryonic matter, such as in neutron stars. So far, only indirect measurements anchored to the binding energies of nuclei can be used to constrain the three-nucleon force, and if hyperons are considered, the scarce data on hypernuclei impose only weak constraints on the three-body forces. In this work, we present the first direct measurement of the p$-$p$-$p and p$-$p$-\Lambda$ systems in terms of three-particle correlation functions carried out for pp collisions at $\sqrt{s}=13$ TeV. Three-particle cumulants are extracted from the correlation functions by applying the Kubo formalism, where the three-particle interaction contribution to these correlations can be isolated after subtracting the known two-body interaction terms. A negative cumulant is found for the p$-$p$-$p system, hinting to the presence of a residual three-body effect while for p$-$p$-\Lambda$ the cumulant is consistent with zero. This measurement demonstrates the accessibility of three-baryon correlations at the LHC.

arXiv comment29 pages, 6 captioned figures, authors from page 24, published version, figures at http://alice-publications.web.cern.ch/node/8231

References in corpus (50)

• An Introduction to PYTHIA 8.2
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Modern Theory of Nuclear Forces
• Equations of state for supernovae and compact stars
• Performance of the ALICE Experiment at the CERN LHC
• Quantum Monte Carlo methods for nuclear physics
• The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
• Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress
• Coupled-cluster computations of atomic nuclei
• Performance of the ALICE VZERO system
• Particle Interferometry for Relativistic Heavy-Ion Collisions
• Three-body forces: From cold atoms to nuclei
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• Evolution of shell structure in neutron-rich calcium isotopes
• A high-precision variational approach to three- and four-nucleon bound and zero-energy scattering states
• Non-Empirical Interactions for the Nuclear Shell Model: An Update
• Similarity-Transformed Chiral NN+3N Interactions for the Ab Initio Description of 12-C and 16-O
• Two-Particle Correlations in Relativistic Heavy-Ion Collisions
• Updated analysis of NN elastic scattering to 3 GeV
• Strangeness in Nuclei and Neutron Stars
• Nuclear forces and their impact on neutron-rich nuclei and neutron-rich matter
• Unified ab initio approaches to nuclear structure and reactions
• Unveiling the strong interaction among hadrons at the LHC
• Ab-initio Gorkov-Green's function calculations of open-shell nuclei
• Study of the strong interaction among hadrons with correlations at the LHC
• p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$ correlations studied via femtoscopy in pp reactions at $\sqrt{s}$ = 7 TeV
• Measurement of the mass difference and the binding energy of the hypertriton and antihypertriton
• First observation of an attractive interaction between a proton and a multi-strange baryon
• Measurement of interaction between antiprotons
• Study of the $\Lambda$-$\Lambda$ interaction with femtoscopy correlations in pp and p-Pb collisions at the LHC
• Experimental evidence for an attractive p-$\varphi$ interaction
• Search for a common baryon source in high-multiplicity pp collisions at the LHC
• Scattering studies with low-energy kaon-proton femtoscopy in proton-proton collisions at the LHC
• Investigation of the p-${\Sigma }^0$ interaction via femtoscopy in pp collisions
• Partial Wave Analysis of Nucleon-Nucleon Scattering below pion production threshold
• Measurement of hyper triton lifetime in Au + Au collisions at the Relativistic Heavy-Ion Collider
• Two and Three-Pion Quantum Statistics Correlations in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV at the LHC
• Study of Light Lambda- and Lambda Lambda-Hypernuclei with the Stochastic Variational Method and Effective Lambda N Potentials
• ${}_{\Lambda }^3\mathrm{H}$ and ${}_{\bar{\Lambda }}^3\bar{\mathrm{H}}$ lifetime measurement in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV via two-body decay
• Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at $\sqrt{s}=7$ TeV
• Three-Body Hypernuclei in Pionless Effective Field Theory
• Multipion Bose-Einstein correlations in pp, p-Pb, and Pb-Pb collisions at the LHC
• Correlation femtoscopy of multiparticle processes
• Investigating the role of strangeness in baryon$-$antibaryon annihilation at the LHC
• Pauli blocking effects and Cooper triples in three-component Fermi gases
• Hypertriton production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• High-resolution hypernuclear spectroscopy at Jefferson Lab, Hall A
• A method to remove lower order contributions in multi-particle femtoscopic correlation functions
• First Determination of Level Structure of an $sd$-Shell Hypernucleus, ${}_{\mathrm{\Lambda }}^{19}\mathrm{F}$

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• Investigating the p-${\pi }^{\pm }$ and p-p-${\pi }^{\pm }$ dynamics with femtoscopy in pp collisions at $\sqrt{s}=13$ TeV
• Convergence of the $ppp$ correlation function within the hyperspherical adiabatic basis
• Method to search for the triple-neutron state in an electron scattering experiment
• Correlation function for the $n{\bar{D}}_{s0}^{\ast }(2317)$ interaction and the issue of elastic unitarity
• Toward a Unified Understanding of the Dense Matter Equation of State
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