Pramana | |
Search for excited leptons in pp collisions at $sqrt{s} = 7$ TeV | |
on behalf of the CMS Collaboration1  Shilpi Jain12  | |
[1] $$;Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India$$ | |
关键词: Large Hadron Collider; compact muon solenoid; compositeness; excited leptons; contact interaction.; | |
DOI : | |
学科分类:物理(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
A search for excited leptons, carried out with the CMS detector in ð‘ð‘ collision at the LHC with $sqrt{s} = 7$ TeV, is presented. The search has been performed for an associated production of a lepton and an oppositely charged excited lepton $pp → ll^{*}$, followed by the decay $l^{*} → lð›¾$ , resulting in $llð›¾$ final state, where $l = e,ðœ‡$. No excess above the Standard Model expectation is observed in the data. Interpreting the findings in the context of $l^{∗}$ production through four-fermion contact interactions and $l^{∗}$ decay via electroweak processes, upper limits are reported for $l^{∗}$ production at this collision energy and the exclusion region in the $𛬠- M(l^{*})$ parameter space is extended beyond the previously established limits.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040498582ZK.pdf | 286KB | download |