Search for high-mass dilepton resonances with 5 fb\1 of pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

Search for high-mass dilepton resonances with 5 fb\1 of pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

Department of Particle Physics and Astrophysics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This note reports on a search for narrow high-mass resonances decaying into dilepton ﬁnal states. The data, recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the Large Hadron Collider (LHC), correspond to a total integrated luminosity of 4.9 (5.0) fb−1 in the e+ e− (µ+ µ−) channel. No statistically significant excess above the Standard Model expectation is observed, and upper limits are set at the 95% confidence level on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower limit of 2.21 TeV on the mass of the Sequential Standard Model Z' boson is set. A Randall-Sundrum graviton with coupling k/M_Pl = 0.1 is excluded at 95% confidence level for masses below 2.16 TeV.

Original language	English
Title of host publication	47th Rencontres de Moriond on Electroweak Interactions and Unified Theories
Place of Publication	Geneva
Publisher	CERN
Number of pages	14
State	Published - 2 Mar 2012

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@inproceedings{258ce17454304f5c8d9128d4ad91e293,

title = "Search for high-mass dilepton resonances with 5 fb\1 of pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment",

abstract = "This note reports on a search for narrow high-mass resonances decaying into dilepton ﬁnal states. The data, recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the Large Hadron Collider (LHC), correspond to a total integrated luminosity of 4.9 (5.0) fb−1 in the e+ e− (µ+ µ−) channel. No statistically significant excess above the Standard Model expectation is observed, and upper limits are set at the 95% confidence level on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower limit of 2.21 TeV on the mass of the Sequential Standard Model Z' boson is set. A Randall-Sundrum graviton with coupling k/M_Pl = 0.1 is excluded at 95% confidence level for masses below 2.16 TeV.",

author = "Noam Hod",

note = "NA",

year = "2012",

month = mar,

day = "2",

language = "الإنجليزيّة",

booktitle = "47th Rencontres de Moriond on Electroweak Interactions and Unified Theories",

publisher = "CERN",

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TY - GEN

T1 - Search for high-mass dilepton resonances with 5 fb\1 of pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

AU - Hod, Noam

N1 - NA

PY - 2012/3/2

Y1 - 2012/3/2

N2 - This note reports on a search for narrow high-mass resonances decaying into dilepton ﬁnal states. The data, recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the Large Hadron Collider (LHC), correspond to a total integrated luminosity of 4.9 (5.0) fb−1 in the e+ e− (µ+ µ−) channel. No statistically significant excess above the Standard Model expectation is observed, and upper limits are set at the 95% confidence level on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower limit of 2.21 TeV on the mass of the Sequential Standard Model Z' boson is set. A Randall-Sundrum graviton with coupling k/M_Pl = 0.1 is excluded at 95% confidence level for masses below 2.16 TeV.

AB - This note reports on a search for narrow high-mass resonances decaying into dilepton ﬁnal states. The data, recorded by the ATLAS experiment in pp collisions at sqrt(s) = 7 TeV at the Large Hadron Collider (LHC), correspond to a total integrated luminosity of 4.9 (5.0) fb−1 in the e+ e− (µ+ µ−) channel. No statistically significant excess above the Standard Model expectation is observed, and upper limits are set at the 95% confidence level on the cross section times branching fraction of Z' resonances and Randall-Sundrum gravitons decaying into dileptons as a function of the resonance mass. A lower limit of 2.21 TeV on the mass of the Sequential Standard Model Z' boson is set. A Randall-Sundrum graviton with coupling k/M_Pl = 0.1 is excluded at 95% confidence level for masses below 2.16 TeV.

M3 - منشور من مؤتمر

BT - 47th Rencontres de Moriond on Electroweak Interactions and Unified Theories

PB - CERN

CY - Geneva

ER -

Search for high-mass dilepton resonances with 5 fb\1 of pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

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