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Observation of multiple hard photon final states at root s=130-140 GeV at LEP

Abstract:: We have studied the process e+e- → ny (n ≥ 2) at an average center-of-mass energy of 133 GeV using the L3 detector at LEP. For an integrated luminosity of 4.95 pb-1 we find one γγγγ(γ) final state with only hard photons. The rates of both γγγ and γγ events are consistent with QED expectations. The cross section of the reaction e+e- → γγ(γ) in the polar range 16° < θγ < 164° is measured to be 22.6 ± 2.2 pb. Decays into photons of narrow scalar resonances with masses between 90 and 130 Ge...
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APA Style

Acciarri, M., Adam, A., Adriani, O., AguilarBenitez, M., Ahlen, S., Alpat, B., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alverson, G., Alviggi, M. G., Ambrosi, G., Anderhub, H., Andreev, V., Angelescu, T., Antreasyan, D., Arefiev, A., Azemoon, T., … Banicz, K. (1996). Observation of multiple hard photon final states at root s=130-140 GeV at LEP. Physics Letters B, 384(1-4), 323–332.

MLA Style

Acciarri, M., et al. “Observation of Multiple Hard Photon Final States at Root s=130-140 GeV at LEP.” Physics Letters B, vol. 384, no. 1-4, 1996, pp. 323–32.

Chicago Style

Acciarri, M, A Adam, O Adriani, M AguilarBenitez, S Ahlen, B Alpat, J Alcaraz, et al. 1996. “Observation of Multiple Hard Photon Final States at Root s=130-140 GeV at LEP.” Physics Letters B 384 (1-4): 323–32.
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Publisher copy:: 10.1016/0370-2693(96)00612-0

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+ Adam, A More by this author

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+ Adriani, O More by this author

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+ AguilarBenitez, M More by this author

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Bibliographic Details

Journal:: Physics Letters B
Volume:: 384
Issue:: 1-4
Pages:: 323-332
Publication date:: 1996-09-19
DOI:: 10.1016/0370-2693(96)00612-0
ISSN:: 0370-2693

Item Description

Pubs id:: pubs:11928
UUID:: uuid:405cc6a6-2cc9-4398-aeb1-18fdabcfce8d
Local pid:: pubs:11928
Source identifiers:: 11928
Deposit date:: 2012-12-19

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Copyright date:: 1996

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

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