Studying the interaction between charm and light-flavor mesons

Abstract

The two-particle momentum correlation functions between charm mesons (${\mathrm{D}}^{\ast \pm }$ and ${\mathrm{D}}^{\pm }$) and charged light-flavor mesons (${\pi }^{\pm }$ and K${}^{\pm }$) in all charge-combinations are measured for the first time by the ALICE Collaboration in high-multiplicity proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV. For $\mathrm{DK}$ and ${\mathrm{D}}^{\ast }\mathrm{K}$ pairs, the experimental results are in agreement with theoretical predictions of the residual strong interaction based on quantum chromodynamics calculations on the lattice and chiral effective field theory. In the case of $\mathrm{D}\pi$ and ${\mathrm{D}}^{\ast }\pi$ pairs, tension between the calculations including strong interactions and the measurement is observed. For all particle pairs, the data can be adequately described by Coulomb interaction only, indicating a shallow interaction between charm and light-flavor mesons. Finally, the scattering lengths governing the residual strong interaction of the $\mathrm{D}\pi$ and ${\mathrm{D}}^{\ast }\pi$ systems are determined by fitting the experimental correlation functions with a model that employs a Gaussian potential. The extracted values are small and compatible with zero.

34 pages, 7 captioned figures, 6 tables, authors from page 28, published version, figures at http://alice-publications.web.cern.ch/node/10648

References in corpus (82)

• An Introduction to PYTHIA 8.2
• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• The PHOBOS Perspective on Discoveries at RHIC
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• The hidden-charm pentaquark and tetraquark states
• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• The $XYZ$ states: experimental and theoretical status and perspectives
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• 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
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 Decaying to D_s^*+ pi^0 and Confirmation of the D_sJ^* (2317) State
• Chiral Multiplets of Heavy-Light Mesons
• Observation of an exotic narrow doubly charmed tetraquark
• Performance of the ALICE VZERO system
• Alignment of the ALICE Inner Tracking System with cosmic-ray tracks
• Implications of a DK Molecule at 2.32 GeV
• Properties of hot and dense matter from relativistic heavy ion collisions
• Study of the doubly charmed tetraquark $T_{cc}^{+}$
• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Observation of the DsJ(2317) and DsJ(2457) in B decays
• Study of B- => D**0 pi-(D**0 => D(*)+ pi-) decays
• Updated analysis of NN elastic scattering to 3 GeV
• Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
• B Decays as Spectroscope for Charmed Four-quark States
• Unveiling the strong interaction among hadrons at the LHC
• Dynamically generated 1^+ heavy mesons
• Understanding $D_{sJ}(2317)$
• Testing the Nature of the D_{sJ}^*(2317)^+ and D_{sJ}(2463)^+ States Using Radiative Transitions
• Thermal-FIST: A package for heavy-ion collisions and hadronic equation of state
• A Comprehensive Four-Quark Interpretation of D_s(2317), D_s(2457) and D_s(2632)
• Comment on the new $D_s^{(\ast )+}{\pi }^0$ resonances
• Femtoscopy of pp collisions at $\sqrt{s}$=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations
• p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$ correlations studied via femtoscopy in pp reactions at $\sqrt{s}$ = 7 TeV
• Two-pole structure of the $D_0^{\ast }(2400)$
• First observation of an attractive interaction between a proton and a multi-strange baryon
• Description of the $D_s^{\ast }(2320)$ resonance as the $D\pi$ atom
• Dalitz plot analysis of $B^0\to {\overline{D}}^0{\pi }^{+}{\pi }^{-}$ decays
• Study of the $\Lambda$-$\Lambda$ interaction with femtoscopy correlations in pp and p-Pb collisions at the LHC
• Amplitude analysis of $B^{-}\to D^{+}{\pi }^{-}{\pi }^{-}$ decays
• Experimental evidence for an attractive p-$\varphi$ interaction
• Radiative transitions of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$
• 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
• Thermal Relaxation of Charm in Hadronic Matter
• Investigation of the p-${\Sigma }^0$ interaction via femtoscopy in pp collisions
• Two-pion femtoscopy in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• A femtoscopic Correlation Analysis Tool using the Schrödinger equation (CATS)
• Towards a new paradigm for heavy-light meson spectroscopy
• Disentangling two- and four-quark state pictures of the charmed scalar mesons
• Measurement of ${\mathrm{D}}^0$, ${\mathrm{D}}^{+}$, ${\mathrm{D}}^{\ast +}$ and ${{\mathrm{D}}^{+}}_s$ production in pp collisions at $\sqrt{\text{s}}=5.02\mathbf{TeV}$ with ALICE
• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
• Prompt D${}^0$, D${}^{+}$, and D${}^{\ast +}$ production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Molecular components in P-wave charmed-strange mesons
• Towards a precise determination of the scattering amplitudes of the charmed and light-flavor pseudoscalar mesons
• Partial Wave Analysis of Nucleon-Nucleon Scattering below pion production threshold
• Charm diffusion in a pion gas implementing unitarity, chiral and heavy quark symmetries
• On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
• Open-charm meson spectroscopy
• Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb-Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV
• ALICE upgrades during the LHC Long Shutdown 2
• Measurement of beauty and charm production in pp collisions at $\sqrt{s}=5.02$ TeV via non-prompt and prompt D mesons
• First study of the two-body scattering involving charm hadrons
• Femtoscopic study on $D{D}^{\ast }$ and $D{\bar{D}}^{\ast }$ interactions for $T_{cc}$ and $X(3872)$
• Coupled-channel effects of the ${\Sigma }_c^{(\ast )}{\bar{D}}^{(\ast )}$-${\Lambda }_c(2595)\bar{D}$ system and molecular nature of the $P_c$ pentaquark states from one-boson exchange model
• Amplitude analysis of $B^0\to {\bar{D}}^0{K}^{+}{\pi }^{-}$ decays
• Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at $\sqrt{s}=7$ TeV
• Some comments on narrow resonances D_{s_1}^* (2.46GeV/c^2) and D_{s0} (2.317GeV/c^2)
• Constraining the $\overline{\mathrm{K}}\mathrm{N}$ coupled channel dynamics using femtoscopic correlations at the LHC
• Charged kaon femtoscopic correlations in pp collisions at $\sqrt{s}=7$ TeV
• Femtoscopic signatures of the lightest S-wave scalar open-charm mesons
• Where is the lightest charmed scalar meson?
• Accessing the strong interaction between $\Lambda$ baryons and charged kaons with the femtoscopy technique at the LHC
• Investigating the role of strangeness in baryon$-$antibaryon annihilation at the LHC
• K${}_s^0$K${}_s^0$ correlations in pp collisions at $\sqrt{s}=7$ TeV from the LHC ALICE experiment
• A method to remove lower order contributions in multi-particle femtoscopic correlation functions
• Light pseudoscalar meson and heavy meson scattering lengths to $\mathcal{O}(p^4)$ in heavy meson chiral perturbation theory
• The Pseudoscalar Meson and Heavy Vector Meson Scattering Lengths

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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
• Accessing the deuteron source with pion-deuteron femtoscopy in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
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• $D^{\ast }\pi$ interaction from the lineshape of $D_1(2420)$ in $B$-decays
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