Study of excited Ξ baryons with the P¯ ANDA detector
(2021) In European Physical Journal A 57(4).- Abstract
- The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study,... (More)
- The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking. © 2021, The Author(s). (Less)
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https://lup.lub.lu.se/record/2e8eccb4-3975-43fd-9cd0-1087ef7ce5cf
- author
- Barucca, G ; Putz, J ; Isaksson, Lennart LU and Zimmermann, S.
- author collaboration
- organization
- publishing date
- 2021-04-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal A
- volume
- 57
- issue
- 4
- article number
- 149
- publisher
- Springer
- external identifiers
-
- scopus:85104834772
- ISSN
- 1434-6001
- DOI
- 10.1140/epja/s10050-021-00444-5
- language
- English
- LU publication?
- yes
- id
- 2e8eccb4-3975-43fd-9cd0-1087ef7ce5cf
- date added to LUP
- 2021-05-17 09:51:12
- date last changed
- 2023-12-07 12:09:23
@article{2e8eccb4-3975-43fd-9cd0-1087ef7ce5cf, abstract = {{The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N∗ and Δ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the N∗ and Δ spectra. The future antiproton experiment P¯ANDA will provide direct access to final states containing a Ξ¯ Ξ pair, for which production cross sections up to μb are expected in p¯p reactions. With a luminosity of L= 10 31 cm- 2 s- 1 in the first phase of the experiment, the expected cross sections correspond to a production rate of ∼106events/day. With a nearly 4 π detector acceptance, P¯ANDA will thus be a hyperon factory. In this study, reactions of the type p¯p → Ξ¯ +Ξ∗ - as well as p¯p → Ξ¯ ∗ +Ξ- with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between 3 and 5%. This allows high statistics data to be collected within a few weeks of data taking. © 2021, The Author(s).}}, author = {{Barucca, G and Putz, J and Isaksson, Lennart and Zimmermann, S.}}, issn = {{1434-6001}}, language = {{eng}}, month = {{04}}, number = {{4}}, publisher = {{Springer}}, series = {{European Physical Journal A}}, title = {{Study of excited Ξ baryons with the P¯ ANDA detector}}, url = {{http://dx.doi.org/10.1140/epja/s10050-021-00444-5}}, doi = {{10.1140/epja/s10050-021-00444-5}}, volume = {{57}}, year = {{2021}}, }