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Study of the p–p–K + and p–p–K - dynamics using the femtoscopy technique

Acharya, S. ; Basu, S. LU orcid ; Christiansen, P. LU ; Hansen, J. LU and Zurlo, N (2023) In European Physical Journal A 59(12).
Abstract
The interactions of kaons (K) and antikaons (K ¯) with few nucleons (N) were studied so far using kaonic atom data and measurements of kaon production and interaction yields in nuclei. Some details of the three-body KNN and K ¯ NN dynamics are still not well understood, mainly due to the overlap with multi-nucleon interactions in nuclei. An alternative method to probe the dynamics of three-body systems with kaons is to study the final state interaction within triplet of particles emitted in pp collisions at the Large Hadron Collider, which are free from effects due to the presence of bound nucleons. This Letter reports the first femtoscopic study of p–p–K + and p–p–K - correlations measured in high-multiplicity pp collisions at s = 13 TeV... (More)
The interactions of kaons (K) and antikaons (K ¯) with few nucleons (N) were studied so far using kaonic atom data and measurements of kaon production and interaction yields in nuclei. Some details of the three-body KNN and K ¯ NN dynamics are still not well understood, mainly due to the overlap with multi-nucleon interactions in nuclei. An alternative method to probe the dynamics of three-body systems with kaons is to study the final state interaction within triplet of particles emitted in pp collisions at the Large Hadron Collider, which are free from effects due to the presence of bound nucleons. This Letter reports the first femtoscopic study of p–p–K + and p–p–K - correlations measured in high-multiplicity pp collisions at s = 13 TeV by the ALICE Collaboration. The analysis shows that the measured p–p–K + and p–p–K - correlation functions can be interpreted in terms of pairwise interactions in the triplets, indicating that the dynamics of such systems is dominated by the two-body interactions without significant contributions from three-body effects or bound states. © 2023, CERN for the benefit of the ALICE Collaboration. (Less)
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author
; ; ; and
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bosons, Hadrons, Tellurium compounds, Antikaons, Correlation function, Final-state interactions, High multiplicity, Kaonic atoms, Large Hadron Collider, Large-hadron colliders, Measurements of, Three body, Three-body systems, Dynamics
in
European Physical Journal A
volume
59
issue
12
article number
298
publisher
Springer
external identifiers
  • scopus:85180267787
ISSN
1434-6001
DOI
10.1140/epja/s10050-023-01139-9
language
English
LU publication?
yes
id
5a000f61-968a-4821-bc7d-3c3ed24661c5
date added to LUP
2024-01-17 09:07:03
date last changed
2024-01-17 09:08:15
@article{5a000f61-968a-4821-bc7d-3c3ed24661c5,
  abstract     = {{The interactions of kaons (K) and antikaons (K ¯) with few nucleons (N) were studied so far using kaonic atom data and measurements of kaon production and interaction yields in nuclei. Some details of the three-body KNN and K ¯ NN dynamics are still not well understood, mainly due to the overlap with multi-nucleon interactions in nuclei. An alternative method to probe the dynamics of three-body systems with kaons is to study the final state interaction within triplet of particles emitted in pp collisions at the Large Hadron Collider, which are free from effects due to the presence of bound nucleons. This Letter reports the first femtoscopic study of p–p–K + and p–p–K - correlations measured in high-multiplicity pp collisions at s = 13 TeV by the ALICE Collaboration. The analysis shows that the measured p–p–K + and p–p–K - correlation functions can be interpreted in terms of pairwise interactions in the triplets, indicating that the dynamics of such systems is dominated by the two-body interactions without significant contributions from three-body effects or bound states. © 2023, CERN for the benefit of the ALICE Collaboration.}},
  author       = {{Acharya, S. and Basu, S. and Christiansen, P. and Hansen, J. and Zurlo, N}},
  issn         = {{1434-6001}},
  keywords     = {{Bosons; Hadrons; Tellurium compounds; Antikaons; Correlation function; Final-state interactions; High multiplicity; Kaonic atoms; Large Hadron Collider; Large-hadron colliders; Measurements of; Three body; Three-body systems; Dynamics}},
  language     = {{eng}},
  number       = {{12}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal A}},
  title        = {{Study of the p–p–K + and p–p–K - dynamics using the femtoscopy technique}},
  url          = {{http://dx.doi.org/10.1140/epja/s10050-023-01139-9}},
  doi          = {{10.1140/epja/s10050-023-01139-9}},
  volume       = {{59}},
  year         = {{2023}},
}