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Title: Search for Z' ---> e+ e- using dielectron mass and angular distribution

Abstract

The authors search Z{prime} bosons in dielectron events produced in p{bar p} collisions at {radical}s = 1.96 TeV, using a 0.45 fb{sup -1} dataset accumulated with the CDF II detector at the Fermilab Tevatron. To identify the Z{prime} {yields} e{sup +}e{sup -} signal, both the dielectron invariant mass distribution and the angular distribution of the electron pair are used. No evidence of a signal is found, and 95% confidence level lower limits are set on the Z{prime} mass for several models. Limits are also placed on the mass and gauge coupling of a generic Z{prime}, as well as on the contact interaction mass scales for different helicity structure scenarios.

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
892444
Report Number(s):
FERMILAB-PUB-06-038-E
arXiv eprint number hep-ex/0602045; TRN: US0701552
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys.Rev.Lett.96:211801,2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANGULAR DISTRIBUTION; BOSONS; ELECTRON PAIRS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; HELICITY; MASS DISTRIBUTION; Experiment-HEP

Citation Formats

Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, Anthony A., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Search for Z' ---> e+ e- using dielectron mass and angular distribution. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.211801.
Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, Anthony A., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., & /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Search for Z' ---> e+ e- using dielectron mass and angular distribution. United States. doi:10.1103/PhysRevLett.96.211801.
Abulencia, A., Acosta, D., Adelman, Jahred A., Affolder, Anthony A., Akimoto, T., Albrow, M.G., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara. Wed . "Search for Z' ---> e+ e- using dielectron mass and angular distribution". United States. doi:10.1103/PhysRevLett.96.211801. https://www.osti.gov/servlets/purl/892444.
@article{osti_892444,
title = {Search for Z' ---> e+ e- using dielectron mass and angular distribution},
author = {Abulencia, A. and Acosta, D. and Adelman, Jahred A. and Affolder, Anthony A. and Akimoto, T. and Albrow, M.G. and Ambrose, D. and Amerio, S. and Amidei, D. and Anastassov, A. and Anikeev, K. and /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara},
abstractNote = {The authors search Z{prime} bosons in dielectron events produced in p{bar p} collisions at {radical}s = 1.96 TeV, using a 0.45 fb{sup -1} dataset accumulated with the CDF II detector at the Fermilab Tevatron. To identify the Z{prime} {yields} e{sup +}e{sup -} signal, both the dielectron invariant mass distribution and the angular distribution of the electron pair are used. No evidence of a signal is found, and 95% confidence level lower limits are set on the Z{prime} mass for several models. Limits are also placed on the mass and gauge coupling of a generic Z{prime}, as well as on the contact interaction mass scales for different helicity structure scenarios.},
doi = {10.1103/PhysRevLett.96.211801},
journal = {Phys.Rev.Lett.96:211801,2006},
number = ,
volume = ,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}