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Title: Exposing strangeness: Projections for kaon electromagnetic form factors

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 Q 2 ≈ 8 GeV 2. 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 Q 2 ≈ 6 GeV 2. Its subsequent Q 2 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.
Authors:
 [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)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
National Natural Science Foundation of China (NNSFC); National Key Basic Research Program of China; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS
OSTI Identifier:
1389615
Alternate Identifier(s):
OSTI ID: 1377102

Gao, Fei, Chang, Lei, Liu, Yu -Xin, Roberts, Craig D., and Tandy, Peter C.. Exposing strangeness: Projections for kaon electromagnetic form factors. United States: N. p., Web. doi:10.1103/PhysRevD.96.034024.
Gao, Fei, Chang, Lei, Liu, Yu -Xin, Roberts, Craig D., & Tandy, Peter C.. Exposing strangeness: Projections for kaon electromagnetic form factors. United States. doi:10.1103/PhysRevD.96.034024.
Gao, Fei, Chang, Lei, Liu, Yu -Xin, Roberts, Craig D., and Tandy, Peter C.. 2017. "Exposing strangeness: Projections for kaon electromagnetic form factors". United States. doi:10.1103/PhysRevD.96.034024. https://www.osti.gov/servlets/purl/1389615.
@article{osti_1389615,
title = {Exposing strangeness: Projections for kaon electromagnetic form factors},
author = {Gao, Fei and Chang, Lei and Liu, Yu -Xin and Roberts, Craig D. and Tandy, Peter C.},
abstractNote = {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.},
doi = {10.1103/PhysRevD.96.034024},
journal = {Physical Review D},
number = 3,
volume = 96,
place = {United States},
year = {2017},
month = {8}
}