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Search for particles with unexpected mass and charge in Z decays

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Search for particles with unexpected mass and charge in Z decays. / ALEPH Collaboration.
In: Physics Letters B, Vol. 303, No. 1-2, 1993, p. 198-208.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

ALEPH Collaboration 1993, 'Search for particles with unexpected mass and charge in Z decays', Physics Letters B, vol. 303, no. 1-2, pp. 198-208. https://doi.org/10.1016/0370-2693(93)90066-Q

APA

Vancouver

ALEPH Collaboration. Search for particles with unexpected mass and charge in Z decays. Physics Letters B. 1993;303(1-2):198-208. doi: 10.1016/0370-2693(93)90066-Q

Author

ALEPH Collaboration. / Search for particles with unexpected mass and charge in Z decays. In: Physics Letters B. 1993 ; Vol. 303, No. 1-2. pp. 198-208.

Bibtex

@article{d922291da91e4e2e88cee5bb805130c9,
title = "Search for particles with unexpected mass and charge in Z decays",
abstract = "During 1989 and 1990 over 180 000 hadronic and leptonic events, corresponding to 8 pb−1 of luminosity, were collected by the ALEPH detector in a scan of the Z peak at the e+e− collider LEP. This letter reports the results of a search in these data for particles with unexpected mass and charge by measurement of the ionization energy loss of charged tracks in the ALEPH TPC central tracking detector. The mass limits for the pair production of fractionally charged particles and of heavy, long lived charged particles are extended to 43 GeV/c2 at 90% confidence level. If single production of a heavy particle is considered, the mass limit is extended to more than 70 GeV/c2.",
author = "D. Buskulic and Alexander Finch and {ALEPH Collaboration}",
year = "1993",
doi = "10.1016/0370-2693(93)90066-Q",
language = "English",
volume = "303",
pages = "198--208",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "1-2",

}

RIS

TY - JOUR

T1 - Search for particles with unexpected mass and charge in Z decays

AU - Buskulic, D.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1993

Y1 - 1993

N2 - During 1989 and 1990 over 180 000 hadronic and leptonic events, corresponding to 8 pb−1 of luminosity, were collected by the ALEPH detector in a scan of the Z peak at the e+e− collider LEP. This letter reports the results of a search in these data for particles with unexpected mass and charge by measurement of the ionization energy loss of charged tracks in the ALEPH TPC central tracking detector. The mass limits for the pair production of fractionally charged particles and of heavy, long lived charged particles are extended to 43 GeV/c2 at 90% confidence level. If single production of a heavy particle is considered, the mass limit is extended to more than 70 GeV/c2.

AB - During 1989 and 1990 over 180 000 hadronic and leptonic events, corresponding to 8 pb−1 of luminosity, were collected by the ALEPH detector in a scan of the Z peak at the e+e− collider LEP. This letter reports the results of a search in these data for particles with unexpected mass and charge by measurement of the ionization energy loss of charged tracks in the ALEPH TPC central tracking detector. The mass limits for the pair production of fractionally charged particles and of heavy, long lived charged particles are extended to 43 GeV/c2 at 90% confidence level. If single production of a heavy particle is considered, the mass limit is extended to more than 70 GeV/c2.

U2 - 10.1016/0370-2693(93)90066-Q

DO - 10.1016/0370-2693(93)90066-Q

M3 - Journal article

VL - 303

SP - 198

EP - 208

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -