Photoproduction of K+K- Pairs in Ultraperipheral Collisions
(2024) In Physical Review Letters 132(22).- Abstract
- K+K- pairs may be produced in photonuclear collisions, either from the decays of photoproduced φ(1020) mesons or directly as nonresonant K+K- pairs. Measurements of K+K- photoproduction probe the couplings between the φ(1020) and charged kaons with photons and nuclear targets. The kaon-proton scattering occurs at energies far above those available elsewhere. We present the first measurement of coherent photoproduction of K+K- pairs on lead ions in ultraperipheral collisions using the ALICE detector, including the first investigation of direct K+K- production. There is significant K+K- production at low transverse momentum, consistent with coherent photoproduction on lead targets. In the mass range 1.1
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- author
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bosons, Hadrons, Mass spectrometry, Photons, Rutherford backscattering spectroscopy, gluconate potassium, lead, proton, Center-of-mass energies, Energy, Lead ions, Measurements of, Nonresonant, Nuclear targets, Photonuclear, Photoproductions, Proton scattering, Transverse momenta, article, controlled study, human, meson, photon, Germanium alloys
- in
- Physical Review Letters
- volume
- 132
- issue
- 22
- article number
- 222303
- publisher
- American Physical Society
- external identifiers
-
- scopus:85195059933
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.132.222303
- language
- English
- LU publication?
- yes
- id
- b5bfadd4-5928-487b-b501-2c77206cefd2
- date added to LUP
- 2024-08-29 13:11:05
- date last changed
- 2024-08-29 13:11:59
@article{b5bfadd4-5928-487b-b501-2c77206cefd2, abstract = {{K+K- pairs may be produced in photonuclear collisions, either from the decays of photoproduced φ(1020) mesons or directly as nonresonant K+K- pairs. Measurements of K+K- photoproduction probe the couplings between the φ(1020) and charged kaons with photons and nuclear targets. The kaon-proton scattering occurs at energies far above those available elsewhere. We present the first measurement of coherent photoproduction of K+K- pairs on lead ions in ultraperipheral collisions using the ALICE detector, including the first investigation of direct K+K- production. There is significant K+K- production at low transverse momentum, consistent with coherent photoproduction on lead targets. In the mass range 1.1}}, author = {{Acharya, S. and Basu, S. and Christiansen, P. and Hansen, J. and Iversen, K.E. and Matonoha, O. and Nepeivoda, R. and Ohlson, A. and Silvermyr, D. and Staa, J. and Vislavicius, V. and Zurlo, N.}}, issn = {{0031-9007}}, keywords = {{Bosons; Hadrons; Mass spectrometry; Photons; Rutherford backscattering spectroscopy; gluconate potassium; lead; proton; Center-of-mass energies; Energy; Lead ions; Measurements of; Nonresonant; Nuclear targets; Photonuclear; Photoproductions; Proton scattering; Transverse momenta; article; controlled study; human; meson; photon; Germanium alloys}}, language = {{eng}}, number = {{22}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Photoproduction of K+K- Pairs in Ultraperipheral Collisions}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.132.222303}}, doi = {{10.1103/PhysRevLett.132.222303}}, volume = {{132}}, year = {{2024}}, }