Journal article

DETERMINATION OF QUARK ELECTROWEAK COUPLINGS FROM DIRECT PHOTON PRODUCTION IN HADRONIC Z-DECAYS

Abstract:: We report on a comparison of isolated hard photon production in hadronic Z decays with the predictions of a next-to-leading order matrix-element calculation. We constrain the quark electroweak couplings to the Z boson with a simultaneous fit to three direct photon distributions, and combine this result with an independent constraint from our measurement of the total hadronic width of the Z, obtaining cu = 0.92 ± 0.22 and cd = 1.63 ± 0.15 where cu,d = 4(gV2 + gA2)u,d. Our results are consistent with standard model predictions. © 1993.

Publication status:: Published

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APA Style

Adriani, O., Aguilarbenitez, M., Ahlen, S., Alcaraz, J., Aloisio, A., Alverson, G., Alviggi, M., Ambrosi, G., An, Q., Anderhub, H., Anderson, A., Andreev, V., Angelov, T., Antonov, L., Antreasyan, D., Arce, P., Arefiev, A., Atamanchuk, A., Azemoon, T., … Ball, R. (1993). DETERMINATION OF QUARK ELECTROWEAK COUPLINGS FROM DIRECT PHOTON PRODUCTION IN HADRONIC Z-DECAYS. Physics Letters B, 301(1), 136–144.

MLA Style

Adriani, O., et al. “DETERMINATION OF QUARK ELECTROWEAK COUPLINGS FROM DIRECT PHOTON PRODUCTION IN HADRONIC Z-DECAYS.” Physics Letters B, vol. 301, no. 1, 1993, pp. 136–44.

Chicago Style

Adriani, O, M Aguilarbenitez, S Ahlen, J Alcaraz, A Aloisio, G Alverson, M Alviggi, et al. 1993. “DETERMINATION OF QUARK ELECTROWEAK COUPLINGS FROM DIRECT PHOTON PRODUCTION IN HADRONIC Z-DECAYS.” Physics Letters B 301 (1): 136–44.
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Publisher copy:: 10.1016/0370-2693(93)90735-Z

Authors

+ Adriani, O More by this author

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+ Aguilarbenitez, M More by this author

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+ Ahlen, S More by this author

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+ Alcaraz, J More by this author

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+ Aloisio, A More by this author

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Journal:: Physics Letters B More from this journal
Volume:: 301
Issue:: 1
Pages:: 136-144
Publication date:: 1993-02-25
DOI:: 10.1016/0370-2693(93)90735-Z
ISSN:: 0370-2693

Pubs id:: pubs:17901
UUID:: uuid:815e5865-b2ce-4643-9cd5-672fb199e59b
Local pid:: pubs:17901
Source identifiers:: 17901
Deposit date:: 2012-12-19

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Copyright date:: 1993

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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