K[subscript s] [superscript 0] and Λ production in pp interactions at √s=0.9 and 7 TeV measured with the ATLAS detector at the LHC
The production of K[subscript S] [superscript 0] and Λ hadrons is studied in pp collision data at √s=0.9 and 7 TeV collected with the ATLAS detector at the LHC using a minimum-bias trigger. The observed distributions of transverse momentum, rapidity, and multiplicity are corrected to hadron level in...
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| Materyal Türü: | Makale |
| Dil: | en_US |
| Baskı/Yayın Bilgisi: |
American Physical Society
2012
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| Online Erişim: | http://hdl.handle.net/1721.1/72096 https://orcid.org/0000-0002-7586-7253 |
| Özet: | The production of K[subscript S] [superscript 0] and Λ hadrons is studied in pp collision data at √s=0.9 and 7 TeV collected with the ATLAS detector at the LHC using a minimum-bias trigger. The observed distributions of transverse momentum, rapidity, and multiplicity are corrected to hadron level in a model-independent way within well-defined phase-space regions. The distribution of the production ratio of Λ̅ to Λ baryons is also measured. The results are compared with various Monte Carlo simulation models. Although most of these models agree with data to within 15% in the K[subscript S] [superscript 0]distributions, substantial disagreements are found in the Λ distributions of transverse momentum. |
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