Abstract
We study the effects of noncommutative QED (NCQED) in fermion pair production, γ+ γ→f + f̄, and Compton scattering, e+ γ→e + γ. Non-commutative geometries appear naturally in the context of string or M theory and give rise to 3- and 4-point photon vertices and to momentum dependent phase factors in QED vertices which will have observable effects in high energy collisions. We consider e +e - colliders with energies appropriate to the TeV linear collider proposals and the multi-TeV CLIC project operating in γγ and eγ modes. Noncommutative scales roughly equal to the center of mass energy of the e +e - collider can be probed, with the exact value depending on the model parameters and experimental factors. However, we find that the Compton process is sensitive to Λ NC values roughly twice as large as those accessible to the pair production process.
| Original language | English (US) |
|---|---|
| Article number | 015005 |
| Journal | Physical Review D |
| Volume | 65 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 1 2002 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
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Signals for noncommutative QED in eγ and γγ collisions. / Godfrey, Stephen; Doncheski, Michael.
In: Physical Review D, Vol. 65, No. 1, 015005, 01.12.2002.Research output: Contribution to journal › Article
TY - JOUR
T1 - Signals for noncommutative QED in eγ and γγ collisions
AU - Godfrey, Stephen
AU - Doncheski, Michael
PY - 2002/12/1
Y1 - 2002/12/1
N2 - We study the effects of noncommutative QED (NCQED) in fermion pair production, γ+ γ→f + f̄, and Compton scattering, e+ γ→e + γ. Non-commutative geometries appear naturally in the context of string or M theory and give rise to 3- and 4-point photon vertices and to momentum dependent phase factors in QED vertices which will have observable effects in high energy collisions. We consider e +e - colliders with energies appropriate to the TeV linear collider proposals and the multi-TeV CLIC project operating in γγ and eγ modes. Noncommutative scales roughly equal to the center of mass energy of the e +e - collider can be probed, with the exact value depending on the model parameters and experimental factors. However, we find that the Compton process is sensitive to Λ NC values roughly twice as large as those accessible to the pair production process.
AB - We study the effects of noncommutative QED (NCQED) in fermion pair production, γ+ γ→f + f̄, and Compton scattering, e+ γ→e + γ. Non-commutative geometries appear naturally in the context of string or M theory and give rise to 3- and 4-point photon vertices and to momentum dependent phase factors in QED vertices which will have observable effects in high energy collisions. We consider e +e - colliders with energies appropriate to the TeV linear collider proposals and the multi-TeV CLIC project operating in γγ and eγ modes. Noncommutative scales roughly equal to the center of mass energy of the e +e - collider can be probed, with the exact value depending on the model parameters and experimental factors. However, we find that the Compton process is sensitive to Λ NC values roughly twice as large as those accessible to the pair production process.
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U2 - 10.1103/PhysRevD.65.015005
DO - 10.1103/PhysRevD.65.015005
M3 - Article
AN - SCOPUS:0036142604
VL - 65
JO - Physical Review D
JF - Physical Review D
SN - 0556-2821
IS - 1
M1 - 015005
ER -