Details

Autor(en) / Beteiligte

• Aad, G
• Abbott, B
• Abdallah, J
• Abdelalim, A A
• Abdesselam, A
• Abdinov, O
• Abi, B
• Abolins, M
• AbouZeid, O S
• Abramowicz, H
• Abreu, H
• Acerbi, E
• Acharya, B S
• Adamczyk, L
• Adams, D L
• Addy, T N
• Adelman, J
• Aderholz, M
• Adomeit, S
• Adragna, P
• Adye, T
• Aefsky, S
• Aguilar-Saavedra, JA
• Aharrouche, M
• Ahlen, S P
• Ahles, F
• Ahmad, A
• Ahsan, M
• Aielli, G
• Akdogan, T
• Akesson, TPA
• Akimoto, G
• Akimov, A V
• Akiyama, A
• Alam, MS
• Alam, MA
• Albert, J
• Albrand, S
• Aleksa, M
• Aleksandrov, IN
• Alessandria, F
• Alexa, C
• Alexander, G
• Alexandre, G
• Alexopoulos, T
• Alhroob, M
• Aliev, M
• Alimonti, G
• Alison, J
• Aliyev, M

Titel

Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in protonaproton collisions

Ist Teil von

• Physics letters. B, 2012-06, Vol.712 (4-5), p.331-350

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02 fb a 1 of integrated luminosity collected by the ATLAS experiment from pp collisions at s = 7 TeV . Events containing either four charged leptons ( a a a a ) or two charged leptons and two jets ( a a j j ) are analyzed and found to be consistent with the Standard Model background expectation. Lower limits on a resonance mass are set using the RandallaSundrum (RS1) graviton model as a benchmark. Using both a a a a and a a j j events, an RS1 graviton with k / m A= pl = 0.1 and mass between 325 and 845 GeV is excluded at 95 % confidence level. In addition, the a a a a events are used to set a model-independent fiducial cross section limit of I fid ( p p a X a ZZ ) < 0.92 pb at 95% confidence level for any new sources of ZZ production with m ZZ greater than 300 GeV.