Test of non-commutative QED in the process e⁺e⁻ to gamma gamma at LEP

G Abbiendi; Georgios Anagnostou; Paul Bell; Ian Bloodworth; David Charlton; Christopher Hawkes; Roger Homer; Predrag Jovanovic; Thomas McMahon; Stephen O'Neale; Miriam Watson; Peter Watkins; Alan Watson; Nigel Watson; John Wilson

doi:10.1016/j.physletb.2003.05.008

Test of non-commutative QED in the process e⁺e⁻ to gamma gamma at LEP

G Abbiendi, Georgios Anagnostou, Paul Bell, Ian Bloodworth, David Charlton, Christopher Hawkes, Roger Homer, Predrag Jovanovic, Thomas McMahon, Stephen O'Neale, Miriam Watson, Peter Watkins, Alan Watson, Nigel Watson, John Wilson

Physics and Astronomy

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25 Citations (Scopus)

Abstract

Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale A(NC) and a unique direction in space defined by two angles eta and xi. In this analysis, eta is defined as the angle between the unique direction and the rotation axis of the earth. The predictions of a tree level calculation for the process e(+)e(-) --> gammagamma are evaluated for the specific orientation of the OPAL detector and compared to the measurements. Distributions of the polar and azimuthal photon angles are used to extract limits on the energy scale A(NC) depending on the model parameter eta. It is shown that the time dependence of the total cross-section could be used to determine the model parameter xi if there were a detectable signal. This is the first experimental study of non-commutative QED at an e(+)e(-) collider. (C) 2003 Published by Elsevier B.V.

Original language	English
Pages (from-to)	181-190
Number of pages	10
Journal	Physics Letters B
Volume	568
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2003.05.008
Publication status	Published - 28 Aug 2003

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10.1016/j.physletb.2003.05.008

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title = "Test of non-commutative QED in the process e⁺e⁻ to gamma gamma at LEP",

abstract = "Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale A(NC) and a unique direction in space defined by two angles eta and xi. In this analysis, eta is defined as the angle between the unique direction and the rotation axis of the earth. The predictions of a tree level calculation for the process e(+)e(-) --> gammagamma are evaluated for the specific orientation of the OPAL detector and compared to the measurements. Distributions of the polar and azimuthal photon angles are used to extract limits on the energy scale A(NC) depending on the model parameter eta. It is shown that the time dependence of the total cross-section could be used to determine the model parameter xi if there were a detectable signal. This is the first experimental study of non-commutative QED at an e(+)e(-) collider. (C) 2003 Published by Elsevier B.V.",

author = "G Abbiendi and Georgios Anagnostou and Paul Bell and Ian Bloodworth and David Charlton and Christopher Hawkes and Roger Homer and Predrag Jovanovic and Thomas McMahon and Stephen O'Neale and Miriam Watson and Peter Watkins and Alan Watson and Nigel Watson and John Wilson",

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doi = "10.1016/j.physletb.2003.05.008",

language = "English",

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journal = "Physics Letters B",

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TY - JOUR

T1 - Test of non-commutative QED in the process e⁺e⁻ to gamma gamma at LEP

AU - Abbiendi, G

AU - Anagnostou, Georgios

AU - Bell, Paul

AU - Bloodworth, Ian

AU - Charlton, David

AU - Hawkes, Christopher

AU - Homer, Roger

AU - Jovanovic, Predrag

AU - McMahon, Thomas

AU - O'Neale, Stephen

AU - Watson, Miriam

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Nigel

AU - Wilson, John

PY - 2003/8/28

Y1 - 2003/8/28

N2 - Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale A(NC) and a unique direction in space defined by two angles eta and xi. In this analysis, eta is defined as the angle between the unique direction and the rotation axis of the earth. The predictions of a tree level calculation for the process e(+)e(-) --> gammagamma are evaluated for the specific orientation of the OPAL detector and compared to the measurements. Distributions of the polar and azimuthal photon angles are used to extract limits on the energy scale A(NC) depending on the model parameter eta. It is shown that the time dependence of the total cross-section could be used to determine the model parameter xi if there were a detectable signal. This is the first experimental study of non-commutative QED at an e(+)e(-) collider. (C) 2003 Published by Elsevier B.V.

AB - Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale A(NC) and a unique direction in space defined by two angles eta and xi. In this analysis, eta is defined as the angle between the unique direction and the rotation axis of the earth. The predictions of a tree level calculation for the process e(+)e(-) --> gammagamma are evaluated for the specific orientation of the OPAL detector and compared to the measurements. Distributions of the polar and azimuthal photon angles are used to extract limits on the energy scale A(NC) depending on the model parameter eta. It is shown that the time dependence of the total cross-section could be used to determine the model parameter xi if there were a detectable signal. This is the first experimental study of non-commutative QED at an e(+)e(-) collider. (C) 2003 Published by Elsevier B.V.

U2 - 10.1016/j.physletb.2003.05.008

DO - 10.1016/j.physletb.2003.05.008

M3 - Article

VL - 568

SP - 181

EP - 190

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Test of non-commutative QED in the process e⁺e⁻ to gamma gamma at LEP

Abstract

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