A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
Aad, G., Abbott, B., Abdallah, J. et al. (80 more authors)
(2016)
A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector.
New Journal of Physics, 18 (7).
073021.
ISSN 1367-2630
Abstract
A new search signature for excited leptons is explored. Excited muons are sought in the channel pp → μμ∗→ μμ jet jet, assuming both the production and decay occur via a contact interaction. The analysis is based on 20.3 fb-1 of pp collision data at a centre-of-mass energy of s = 8 TeV taken with the ATLAS detector at the large hadron collider. No evidence of excited muons is found, and limits are set at the 95% confidence level on the cross section times branching ratio as a function of the excited-muonmass μμ∗. For μμ∗between 1.3 and 3.0 TeV, the upper limit on φB (μ∗→ μqq) is between 0.6 and 1 fb. Limits on sB are converted to lower bounds on the compositeness scale. In the limiting case L = μμ∗, excitedmuonswith amass below2.8 TeVare excluded.With the samemodel assumptions, these limits at larger μ∗masses improve upon previous limits fromtraditional searches based on the gauge-mediated decay μ∗→ μγ.
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This paper has 83 authors. You can scroll the list below to see them all or them all.
Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Abeloos, B.
Aben, R.
Abolins, M.
Abouzeid, O.S.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.S.
Adamczyk, L.
Adams, D.L.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A.A.
Agatonovic-Jovin, T.
Agricola, J.
Aguilar-Saavedra, J.A.
Ahlen, S.P.
Ahmadov, F.
Aielli, G.
Akerstedt, H.
Åkesson, T.P.A.
Akimov, A.V.
Alberghi, G.L.
Albert, J.
Albrand, S.
Alconada Verzini, M.J.
Aleksa, M.
Aleksandrov, I.N.
Alexa, C.
Alexander, G.
Alexopoulos, T.
Alhroob, M.
Alimonti, G.
Alio, L.
Alison, J.
Alkire, S.P.
Allbrooke, B.M.M.
Allen, B.W.
Allport, P.P.
Aloisio, A.
Alonso, A.
Alonso, F.
Alpigiani, C.
Alvarez Gonzalez, B.
Álvarez Piqueras, D.
Alviggi, M.G.
Amadio, B.T.
Amako, K.
Amaral Coutinho, Y.
Amelung, C.
Amidei, D.
Amor Dos Santos, S.P.
Amorim, A.
Amoroso, S.
Amram, N.
Amundsen, G.
Anastopoulos, C.
Ancu, L.S.
Andari, N.
Andeen, T.
Anders, C.F.
Anders, G.
Anders, J.K.
Anderson, K.J.
Andreazza, A.
Andrei, V.
Angelidakis, S.
Angelozzi, I.
Anger, P.
Angerami, A.
Anghinolfi, F.
Anisenkov, A.V.
Anjos, N.
Annovi, A.
Antonelli, M.
Antonov, A.
Antos, J.
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