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CRIS Current Research Information System
Results are presented of a search for compositeness in electrons and muons using a data sample of
pp collisions at a center-of-mass energy
√
s = 7 TeV collected with the CMS detector at the LHC and
corresponding to an integrated luminosity of 5.0 fb−1. Excited leptons (
∗) are assumed to be produced
via contact interactions in conjunction with a standard model lepton and to decay via
∗→γ , yielding a
final state with two energetic leptons and a photon. The number of events observed in data is consistent
with that expected from the standard model. The 95% confidence upper limits for the cross section for
the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48
to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where
the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most
stringent ones published to date.
S. Chatrchyan, V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, et al. (2013). Search for excited leptons in pp collisions at sqrt(s) = 7 TeV. PHYSICS LETTERS. SECTION B, 720, 309-329 [10.1016/j.physletb.2013.02.031].
Search for excited leptons in pp collisions at sqrt(s) = 7 TeV
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2013
Abstract
Results are presented of a search for compositeness in electrons and muons using a data sample of
pp collisions at a center-of-mass energy
√
s = 7 TeV collected with the CMS detector at the LHC and
corresponding to an integrated luminosity of 5.0 fb−1. Excited leptons (
∗) are assumed to be produced
via contact interactions in conjunction with a standard model lepton and to decay via
∗→γ , yielding a
final state with two energetic leptons and a photon. The number of events observed in data is consistent
with that expected from the standard model. The 95% confidence upper limits for the cross section for
the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48
to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where
the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most
stringent ones published to date.
S. Chatrchyan, V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, et al. (2013). Search for excited leptons in pp collisions at sqrt(s) = 7 TeV. PHYSICS LETTERS. SECTION B, 720, 309-329 [10.1016/j.physletb.2013.02.031].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/233523
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.