Refine
Year of publication
Document Type
- Preprint (217)
- Article (141)
- Conference Proceeding (1)
- Part of Periodical (1)
Language
- English (360)
Has Fulltext
- yes (360)
Is part of the Bibliography
- no (360)
Keywords
- Heavy Ion Experiments (8)
- Hadron-Hadron scattering (experiments) (5)
- LHC (4)
- ALICE experiment (2)
- Heavy-ion collision (2)
- pp collisions (2)
- ALICE (1)
- ALICE detector (1)
- Anti-nuclei (1)
- Beauty production (1)
- Comparison with QCD (1)
- Electron-pion identification (1)
- Fibre/foam sandwich radiator (1)
- Hadron production (1)
- Heavy Quark Production (1)
- Heavy flavor production (1)
- Heavy flavour production (1)
- Inclusive spectra (1)
- Ionisation energy loss (1)
- Mid-rapidity (1)
- Multi-strange baryons (1)
- Multi-wire proportional drift chamber (1)
- Neural network (1)
- Particle correlations and fluctuations (1)
- Pb–Pb collisions (1)
- Proton–proton (1)
- Quark Gluon Plasma (1)
- Single electrons (1)
- Single muons (1)
- TR (1)
- Tracking (1)
- Transition radiation detector (1)
- Trigger (1)
- WoRMS (1)
- World Register of Marine Species (1)
- Xenon-based gas mixture (1)
- dE/dx (1)
- heavy ion experiments (1)
- nomenclature (1)
- quark gluon plasma (1)
- spectra (1)
- taxonomic databases (1)
- taxonomy (1)
Institute
- Physik (358)
- Frankfurt Institute for Advanced Studies (FIAS) (315)
- Informatik (298)
- Hochschulrechenzentrum (1)
- Medizin (1)
Scattering studies with low-energy kaon-proton femtoscopy in proton–proton collisions at the LHC
(2020)
The study of the strength and behaviour of the antikaon-nucleon (K¯¯¯¯N) interaction constitutes one of the key focuses of the strangeness sector in low-energy Quantum Chromodynamics (QCD). In this letter a unique high-precision measurement of the strong interaction between kaons and protons, close and above the kinematic threshold, is presented. The femtoscopic measurements of the correlation function at low pair-frame relative momentum of (K+ p ⊕ K− p¯¯¯) and (K− p ⊕ K+ p¯¯¯) pairs measured in pp collisions at s√ = 5, 7 and 13 TeV are reported. A structure observed around a relative momentum of 58 MeV/c in the measured correlation function of (K− p ⊕ K+ p¯¯¯) with a significance of 4.4. σ constitutes the first experimental evidence for the opening of the (K¯¯¯¯0n⊕K0n¯¯¯) isospin breaking channel due to the mass difference between charged and neutral kaons. The measured correlation functions have been compared to Jülich and Kyoto models in addition to the Coulomb potential. The high-precision data at low relative momenta presented in this work prove femtoscopy to be a powerful complementary tool to scattering experiments and provide new constraints above the K¯¯¯¯N threshold for low-energy QCD chiral models.