Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV
The longitudinal spin transfer, D[subscript LL], from high energy polarized protons to Λ and [bar over Λ] hyperons has been measured for the first time in proton-proton collisions at √s=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. The measurements cover pseudorapidity, η, i...
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American Physical Society (APS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/117177 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 https://orcid.org/0000-0001-5839-707X |
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| author | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, Alan Michael Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G Redwine, Robert P Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, Alan Michael Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G Redwine, Robert P Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H |
| author_sort | Balewski, Jan T. |
| collection | MIT |
| description | The longitudinal spin transfer, D[subscript LL], from high energy polarized protons to Λ and [bar over Λ] hyperons has been measured for the first time in proton-proton collisions at √s=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. The measurements cover pseudorapidity, η, in the range |η| < 1.2 and transverse momenta, p[subscript T], up to 4 GeV/c. The longitudinal spin transfer is found to be D[subscript LL]=-0.03±0.13(stat)±0.04(syst) for inclusive Λ and D[subscript LL]=-0.12±0.08(stat)±0.03(syst) for inclusive [bar over Λ] hyperons with η =0.5 and pT=3.7GeV/c. The dependence on η and p[subscript T] is presented. © 2009 The American Physical Society. |
| first_indexed | 2024-09-23T12:30:18Z |
| format | Article |
| id | mit-1721.1/117177 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T12:30:18Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1171772022-10-01T09:23:15Z Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, Alan Michael Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G Redwine, Robert P Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, Alan Michael Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G Redwine, Robert P Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H The longitudinal spin transfer, D[subscript LL], from high energy polarized protons to Λ and [bar over Λ] hyperons has been measured for the first time in proton-proton collisions at √s=200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. The measurements cover pseudorapidity, η, in the range |η| < 1.2 and transverse momenta, p[subscript T], up to 4 GeV/c. The longitudinal spin transfer is found to be D[subscript LL]=-0.03±0.13(stat)±0.04(syst) for inclusive Λ and D[subscript LL]=-0.12±0.08(stat)±0.03(syst) for inclusive [bar over Λ] hyperons with η =0.5 and pT=3.7GeV/c. The dependence on η and p[subscript T] is presented. © 2009 The American Physical Society. National Science Foundation (U.S.) Alfred P. Sloan Foundation United States. Department of Energy. Office of Science 2018-07-27T19:18:22Z 2018-07-27T19:18:22Z 2009-12 2018-02-23T21:21:36Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/117177 Abelev, B. I., et al. “Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV.” Physical Review D, vol. 80, no. 11, Dec. 2009. © 2009 American Physical Society https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 https://orcid.org/0000-0001-5839-707X http://dx.doi.org/10.1103/PhysRevD.80.111102 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, Alan Michael Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G Redwine, Robert P Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title | Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title_full | Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title_fullStr | Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title_full_unstemmed | Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title_short | Longitudinal Spin Transfer to Λ and [¯ over Λ] Hyperons in Polarized Proton-Proton Collisions at √s = 200 GeV |
| title_sort | longitudinal spin transfer to λ and ¯ over λ hyperons in polarized proton proton collisions at √s 200 gev |
| url | http://hdl.handle.net/1721.1/117177 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 https://orcid.org/0000-0001-5839-707X |
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