Measurements of Strong-Interaction Effects in Kaonic-Helium Isotopes at Sub-eV Precision with X-Ray Microcalorimeters
(2022) In Physical Review Letters 128(11).- Abstract
- We have measured the 3d→2p transition x rays of kaonic 3He and 4He
atoms using superconducting transition-edge-sensor microcalorimeters
with an energy resolution better than 6 eV (FWHM). We determined the
energies to be 6224.5±0.4(stat)±0.2(syst) eV and 6463.7±0.3(stat)±0.1(syst) eV, and widths to be 2.5±1.0(stat)±0.4(syst) eV and 1.0±0.6(stat)±0.3(stat) eV, for kaonic 3He and 4He,
respectively. These values are nearly 10 times more precise than in
previous measurements. Our results exclude the large strong-interaction
shifts and widths that are suggested by a coupled-channel approach and
agree with calculations based on optical-potential models.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/cfb56937-315c-41a4-a947-d3b5df22e459
- author
- Hashimoto, T. ; Okada, S. ; Tatsuno, H. LU ; Uhlig, J. LU and Zmeskal, J.
- author collaboration
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 128
- issue
- 11
- article number
- 112503
- pages
- 6 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:85126960245
- pmid:35363014
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.128.112503
- language
- English
- LU publication?
- yes
- id
- cfb56937-315c-41a4-a947-d3b5df22e459
- date added to LUP
- 2022-03-28 12:44:01
- date last changed
- 2023-12-07 19:31:03
@article{cfb56937-315c-41a4-a947-d3b5df22e459, abstract = {{We have measured the 3d→2p transition x rays of kaonic 3He and 4He<br> atoms using superconducting transition-edge-sensor microcalorimeters <br> with an energy resolution better than 6 eV (FWHM). We determined the <br> energies to be 6224.5±0.4(stat)±0.2(syst) eV and 6463.7±0.3(stat)±0.1(syst) eV, and widths to be 2.5±1.0(stat)±0.4(syst) eV and 1.0±0.6(stat)±0.3(stat) eV, for kaonic 3He and 4He,<br> respectively. These values are nearly 10 times more precise than in <br> previous measurements. Our results exclude the large strong-interaction <br> shifts and widths that are suggested by a coupled-channel approach and <br> agree with calculations based on optical-potential models.}}, author = {{Hashimoto, T. and Okada, S. and Tatsuno, H. and Uhlig, J. and Zmeskal, J.}}, issn = {{1079-7114}}, language = {{eng}}, number = {{11}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Measurements of Strong-Interaction Effects in Kaonic-Helium Isotopes at Sub-eV Precision with X-Ray Microcalorimeters}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.128.112503}}, doi = {{10.1103/PhysRevLett.128.112503}}, volume = {{128}}, year = {{2022}}, }