Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X
We present a study of 649±35 e+e-→cc̅ events produced at √s≈10.6 GeV containing both a Λc+ baryon and a Λ̅ c- antibaryon. The number observed is roughly 4 times that expected if the leading charmed hadron types are uncorrelated, confirming an observation by the CLEO Collaboration. We find a 2-jet t...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/64624 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1811068735628247040 |
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| author | Dujmic, Denis Henderson, Shawn Wesley Sciolla, Gabriella Yamamoto, R. K. Zhao, M. Cowan, Ray F Fisher, Peter H Spitznagel, Michael A |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Dujmic, Denis Henderson, Shawn Wesley Sciolla, Gabriella Yamamoto, R. K. Zhao, M. Cowan, Ray F Fisher, Peter H Spitznagel, Michael A |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | We present a study of 649±35 e+e-→cc̅ events produced at √s≈10.6 GeV containing both a Λc+ baryon and a Λ̅ c- antibaryon. The number observed is roughly 4 times that expected if the leading charmed hadron types are uncorrelated, confirming an observation by the CLEO Collaboration. We find a 2-jet topology in these events but very few additional baryons, demonstrating that the primary c and c̅ are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed baryons we observe on average 2.6±0.2 charged intermediate mesons, predominantly pions, carrying 65% of the remaining energy. |
| first_indexed | 2024-09-23T08:00:18Z |
| format | Article |
| id | mit-1721.1/64624 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:00:18Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/646242023-02-26T04:12:18Z Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X Correlated leading baryon-antibaryon production in e+e-→cc̅ →Λc+Λ̅ c-X Dujmic, Denis Henderson, Shawn Wesley Sciolla, Gabriella Yamamoto, R. K. Zhao, M. Cowan, Ray F Fisher, Peter H Spitznagel, Michael A Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Fisher, Peter H. Fisher, Peter H. Cowan, Ray Franklin Dujmic, Denis Henderson, Shawn Wesley Sciolla, Gabriella Spitznagel, M. Yamamoto, R. K. Zhao, M. We present a study of 649±35 e+e-→cc̅ events produced at √s≈10.6 GeV containing both a Λc+ baryon and a Λ̅ c- antibaryon. The number observed is roughly 4 times that expected if the leading charmed hadron types are uncorrelated, confirming an observation by the CLEO Collaboration. We find a 2-jet topology in these events but very few additional baryons, demonstrating that the primary c and c̅ are predominantly contained in a correlated baryon-antibaryon system. In addition to the charmed baryons we observe on average 2.6±0.2 charged intermediate mesons, predominantly pions, carrying 65% of the remaining energy. Alfred P. Sloan Foundation United States. Dept. of Energy National Science Foundation (U.S.) 2011-06-21T14:47:46Z 2011-06-21T14:47:46Z 2010-11 2010-06 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/64624 B. Aubert et al. (BABAR Collaboration). "Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X." Phys. Rev. D 82.9, 091102(R) (2010) [8 pages] © 2010 The American Physical Society. https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevD.82.091102 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 |
| spellingShingle | Dujmic, Denis Henderson, Shawn Wesley Sciolla, Gabriella Yamamoto, R. K. Zhao, M. Cowan, Ray F Fisher, Peter H Spitznagel, Michael A Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title | Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title_full | Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title_fullStr | Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title_full_unstemmed | Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title_short | Correlated leading baryon-antibaryon production in e+e--->cc[over-bar]-->Lambda c+Lambda[over-bar]c-X |
| title_sort | correlated leading baryon antibaryon production in e e cc over bar lambda c lambda over bar c x |
| url | http://hdl.handle.net/1721.1/64624 https://orcid.org/0000-0002-8667-5660 |
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