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Title: Exposing strangeness: Projections for kaon electromagnetic form factors

Journal Article · · Physical Review D
 [1];  [2];  [1];  [3];  [4]
  1. Peking Univ., Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  2. Nankai Univ., Tianjin (China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Kent State Univ., Kent, OH (United States)

A continuum approach to the kaon and pion bound-state problems is used to reveal their electromagnetic structure. For both systems, when used with parton distribution amplitudes appropriate to the scale of the experiment, Standard Model hard-scattering formulas are accurate to within 25% at momentum transfers Q2 ≈ 8 GeV2. There are measurable differences between the distribution of strange and normal matter within the kaons, e.g. the ratio of their separate contributions reaches a peak value of 1.5 at Q2 ≈ 6 GeV2. Its subsequent Q2 evolution is accurately described by the hard scattering formulas. Projections for the ratio of kaon and pion form factors at timelike momenta beyond the resonance region are also presented. In conclusion, these results and projections should prove useful in planning next-generation experiments.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Natural Science Foundation of China (NSFC); National Key Basic Research Program of China; USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1389615
Alternate ID(s):
OSTI ID: 1377102
Journal Information:
Physical Review D, Vol. 96, Issue 3; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 42 works
Citation information provided by
Web of Science

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Cited By (12)

In-Medium $$K^+$$ K + Electromagnetic Form Factor with a Symmetric Vertex in a Light Front Approach journal March 2018
$$N^*$$ N ∗ Structure and Strong QCD journal May 2018
Drawing insights from pion parton distributions journal March 2020
Pion off-shell electromagnetic form factors: Data extraction and model analysis journal December 2019
Symmetry, symmetry breaking, and pion parton distributions journal March 2020
Kaon-box contribution to the anomalous magnetic moment of the muon journal March 2020
Pion and kaon structure at the electron-ion collider journal October 2019
Separated Kaon Electroproduction Cross Section and the Kaon Form Factor from 6 GeV JLab Data text January 2018
Symmetry, symmetry breaking, and pion parton distributions text January 2019
Pion and Kaon Structure at the Electron-Ion Collider text January 2019
Kaon-box contribution to the anomalous magnetic moment of the muon text January 2019
Elastic electromagnetic form factors of vector mesons text January 2019

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