Log in
Language:

MERAL Myanmar Education Research and Learning Portal

  • Top
  • Universities
  • Ranking


Index Link

Index Tree

  • RootNode

Please input email address.

WEKO

One fine body…

WEKO

One fine body…

Item

{"_buckets": {"deposit": "304e0cc5-0b8a-4876-bb4f-492edbf0d62d"}, "_deposit": {"id": "728", "owners": [], "pid": {"revision_id": 0, "type": "recid", "value": "728"}, "status": "published"}, "_oai": {"id": "oai:meral.edu.mm:recid/728", "sets": ["user-um"]}, "communities": ["um"], "control_number": "728", "item_1583103067471": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion", "subitem_1551255648112": "en"}]}, "item_1583103085720": {"attribute_name": "Description", "attribute_value_mlt": [{"interim": "In the E373 experiment at KEK-PS, we have located nearly 2 × 104 stopping events of Ξ− hyperon candidates in nuclear emulsion. Among these, the identification of the Ξ− hyperon was performed with the constant sagitta (CS) method, by measuring multiple Coulomb scattering for 695 clear stopping events, σ-stop, with emission of nuclear fragments due to negatively charged hadrons. With use of a Geant4 simulation, the parameters for the CS method were optimized and we obtained the number of real Ξ− stopping events to be 432.3±7.6+ 0.0−14.0 with 3.2% systematic error by contamination by the Σ− hyperon. We have classified the events for Ξ− hyperon capture by light (C, N, O) and heavy (Ag, Br) elements in the emulsion. The trapping probabilities of two Λ hyperons for light and heavy nuclei were found to be 5.0±1.7% and 4.2±1.4%⁠, respectively, for σ-stop via Ξ− hyperon capture at rest in the emulsion. For at least one Λ trapping, the probabilities were 69.4±8.1% for light nuclei and 51.1±5.7% for heavy nuclei. These results allow us to present the trapping probabilities of Λ hyperons via Ξ− hyperon capture at rest in emulsion for the first time, because the previous E176 experiment showed the lower limits due to fewer statistics."}]}, "item_1583103108160": {"attribute_name": "Keywords", "attribute_value_mlt": [{"interim": "Trapping probability"}]}, "item_1583103120197": {"attribute_name": "Files", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "date": [{"dateType": "Available", "dateValue": "2020-05-05"}], "displaytype": "preview", "download_preview_message": "", "file_order": 0, "filename": "Trapping probability of strangeness via Xi−.pdf", "filesize": [{"value": "3518 Kb"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 3518000.0, "url": {"url": "https://meral.edu.mm/record/728/files/Trapping probability of strangeness via Xi−.pdf"}, "version_id": "83a5c6a2-0773-4e02-8f87-e72bd70825a6"}]}, "item_1583103131163": {"attribute_name": "Journal articles", "attribute_value_mlt": [{"subitem_issue": "2", "subitem_journal_title": "Progress of Theoretical and Experimental Physics,021D01", "subitem_volume": "2019"}]}, "item_1583103147082": {"attribute_name": "Conference papaers", "attribute_value_mlt": [{}]}, "item_1583103211336": {"attribute_name": "Books/reports/chapters", "attribute_value_mlt": [{}]}, "item_1583103233624": {"attribute_name": "Thesis/dissertations", "attribute_value_mlt": [{"subitem_supervisor(s)": []}]}, "item_1583105942107": {"attribute_name": "Authors", "attribute_value_mlt": [{"subitem_authors": [{"subitem_authors_fullname": "Aye Moh Moh Theint"}, {"subitem_authors_fullname": "Ekawa, Hiroyuki"}, {"subitem_authors_fullname": "Kasagi, Ayumi"}, {"subitem_authors_fullname": "Kinbara, Shinji"}, {"subitem_authors_fullname": "May Sweet"}, {"subitem_authors_fullname": "Khin Than Tint"}, {"subitem_authors_fullname": "Yoon, Chun Sil"}, {"subitem_authors_fullname": "Yoshida, Junya"}, {"subitem_authors_fullname": "Yoshimoto, Masahiro"}, {"subitem_authors_fullname": "Nakazawa, Kazuma"}]}]}, "item_1583108359239": {"attribute_name": "Upload type", "attribute_value_mlt": [{"interim": "Publication"}]}, "item_1583108428133": {"attribute_name": "Publication type", "attribute_value_mlt": [{"interim": "Journal article"}]}, "item_1583159729339": {"attribute_name": "Publication date", "attribute_value": "2019"}, "item_1583159847033": {"attribute_name": "Identifier", "attribute_value": "https://umoar.mu.edu.mm/handle/123456789/382"}, "item_title": "Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion", "item_type_id": "21", "owner": "1", "path": ["1582967025340"], "permalink_uri": "http://hdl.handle.net/20.500.12678/0000000728", "pubdate": {"attribute_name": "Deposited date", "attribute_value": "2020-03-05"}, "publish_date": "2020-03-05", "publish_status": "0", "recid": "728", "relation": {}, "relation_version_is_last": true, "title": ["Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion"], "weko_shared_id": -1}
  1. University of Mandalay
  2. Department of Physics

Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion

http://hdl.handle.net/20.500.12678/0000000728
http://hdl.handle.net/20.500.12678/0000000728
b7771711-db76-41a8-8e6d-23a790f74930
304e0cc5-0b8a-4876-bb4f-492edbf0d62d
None
Preview
Name / File License Actions
Trapping Trapping probability of strangeness via Xi−.pdf (3518 Kb)
Publication type
Journal article
Upload type
Publication
Title
Title Trapping probability of strangeness via Xi− hyperon capture at rest in nuclear emulsion
Language en
Publication date 2019
Authors
Aye Moh Moh Theint
Ekawa, Hiroyuki
Kasagi, Ayumi
Kinbara, Shinji
May Sweet
Khin Than Tint
Yoon, Chun Sil
Yoshida, Junya
Yoshimoto, Masahiro
Nakazawa, Kazuma
Description
In the E373 experiment at KEK-PS, we have located nearly 2 × 104 stopping events of Ξ− hyperon candidates in nuclear emulsion. Among these, the identification of the Ξ− hyperon was performed with the constant sagitta (CS) method, by measuring multiple Coulomb scattering for 695 clear stopping events, σ-stop, with emission of nuclear fragments due to negatively charged hadrons. With use of a Geant4 simulation, the parameters for the CS method were optimized and we obtained the number of real Ξ− stopping events to be 432.3±7.6+ 0.0−14.0 with 3.2% systematic error by contamination by the Σ− hyperon. We have classified the events for Ξ− hyperon capture by light (C, N, O) and heavy (Ag, Br) elements in the emulsion. The trapping probabilities of two Λ hyperons for light and heavy nuclei were found to be 5.0±1.7% and 4.2±1.4%⁠, respectively, for σ-stop via Ξ− hyperon capture at rest in the emulsion. For at least one Λ trapping, the probabilities were 69.4±8.1% for light nuclei and 51.1±5.7% for heavy nuclei. These results allow us to present the trapping probabilities of Λ hyperons via Ξ− hyperon capture at rest in emulsion for the first time, because the previous E176 experiment showed the lower limits due to fewer statistics.
Keywords
Trapping probability
Identifier https://umoar.mu.edu.mm/handle/123456789/382
Journal articles
2
Progress of Theoretical and Experimental Physics,021D01
2019
Conference papaers
Books/reports/chapters
Thesis/dissertations
Back
0
0
views
downloads
See details
Views Downloads

Versions

Ver.1 2020-03-08 08:55:47.096869
Show All versions

Share

Mendeley Twitter Facebook Print Addthis

Export

OAI-PMH
  • OAI-PMH DublinCore
Other Formats
  • JSON

Confirm


Back to MERAL


Back to MERAL