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Title: Search for High-Mass \boldmath$e^+e^-$$ Resonances in \boldmath$$p\bar{p}$$ Collisions at \boldmath$$\sqrt{s}=$1.96 TeV

Abstract

A search for high-mass resonances in the e{sup +}e{sup -} final state is presented based on {radical}s =1.96 TeV p{bar p} collision data from the CDF II detector at the Fermilab Tevatron from an integrated luminosity of 2.5 fb{sup -1}. The largest excess over the standard model prediction is at an e{sup +}e{sup -} invariant mass of 240 GeV/c{sup 2}. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150-1,000 GeV/c{sup 2} is 0.6% (equivalent to 2.5 {sigma}). We set Bayesian upper limits on {sigma}(p{bar p} {yields} X) {center_dot} {Beta}(X {yields} e{sup +}e{sup -}) at the 95% credibility level, where X is a spin 1 or spin 2 particle, and we exclude the standard model coupling Z{prime} and the Randall-Sundrum graviton for {kappa}/{bar M}{sub Pl} = 0.1 with masses below 963 and 848 GeV/c{sup 2}, respectively.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
944762
Report Number(s):
FERMILAB-PUB-08-434-E
arXiv eprint number arXiv:0810.2059; TRN: US0900617
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; FLUCTUATIONS; FORECASTING; GRAVITONS; LUMINOSITY; PROBABILITY; SPIN; STANDARD MODEL; Experiment-HEP

Citation Formats

Aaltonen, T, /Helsinki Inst. of Phys., Adelman, J, /Chicago U., EFI, Akimoto, T, /Tsukuba U., Albrow, Michael G, /Fermilab, Alvarez Gonzalez, B, /CSIC, Catalunya, Amerio, S, /INFN, Padua, Amidei, Dante E, /Michigan U., Anastassov, A, /Northwestern U., Annovi, Alberto, /Frascati, Antos, J, /Comenius U., Apollinari, G, and /Fermilab /Purdue U. Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV. United States: N. p., 2008. Web.
Aaltonen, T, /Helsinki Inst. of Phys., Adelman, J, /Chicago U., EFI, Akimoto, T, /Tsukuba U., Albrow, Michael G, /Fermilab, Alvarez Gonzalez, B, /CSIC, Catalunya, Amerio, S, /INFN, Padua, Amidei, Dante E, /Michigan U., Anastassov, A, /Northwestern U., Annovi, Alberto, /Frascati, Antos, J, /Comenius U., Apollinari, G, & /Fermilab /Purdue U. Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV. United States.
Aaltonen, T, /Helsinki Inst. of Phys., Adelman, J, /Chicago U., EFI, Akimoto, T, /Tsukuba U., Albrow, Michael G, /Fermilab, Alvarez Gonzalez, B, /CSIC, Catalunya, Amerio, S, /INFN, Padua, Amidei, Dante E, /Michigan U., Anastassov, A, /Northwestern U., Annovi, Alberto, /Frascati, Antos, J, /Comenius U., Apollinari, G, and /Fermilab /Purdue U. 2008. "Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV". United States. https://www.osti.gov/servlets/purl/944762.
@article{osti_944762,
title = {Search for High-Mass \boldmath$e^+e^-$ Resonances in \boldmath$p\bar{p}$ Collisions at \boldmath$\sqrt{s}=$1.96 TeV},
author = {Aaltonen, T and /Helsinki Inst. of Phys. and Adelman, J and /Chicago U., EFI and Akimoto, T and /Tsukuba U. and Albrow, Michael G and /Fermilab and Alvarez Gonzalez, B and /CSIC, Catalunya and Amerio, S and /INFN, Padua and Amidei, Dante E and /Michigan U. and Anastassov, A and /Northwestern U. and Annovi, Alberto and /Frascati and Antos, J and /Comenius U. and Apollinari, G and /Fermilab /Purdue U.},
abstractNote = {A search for high-mass resonances in the e{sup +}e{sup -} final state is presented based on {radical}s =1.96 TeV p{bar p} collision data from the CDF II detector at the Fermilab Tevatron from an integrated luminosity of 2.5 fb{sup -1}. The largest excess over the standard model prediction is at an e{sup +}e{sup -} invariant mass of 240 GeV/c{sup 2}. The probability of observing such an excess arising from fluctuations in the standard model anywhere in the mass range of 150-1,000 GeV/c{sup 2} is 0.6% (equivalent to 2.5 {sigma}). We set Bayesian upper limits on {sigma}(p{bar p} {yields} X) {center_dot} {Beta}(X {yields} e{sup +}e{sup -}) at the 95% credibility level, where X is a spin 1 or spin 2 particle, and we exclude the standard model coupling Z{prime} and the Randall-Sundrum graviton for {kappa}/{bar M}{sub Pl} = 0.1 with masses below 963 and 848 GeV/c{sup 2}, respectively.},
doi = {},
url = {https://www.osti.gov/biblio/944762}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 2008},
month = {Wed Oct 01 00:00:00 EDT 2008}
}