TeV-scale string resonances at hadron colliders
Nov, 2004
25 pages
Published in:
- Phys.Rev.D 71 (2005) 016005,
- Phys.Rev.D 71 (2005) 019905 (erratum)
e-Print:
- hep-ph/0411094 [hep-ph]
Report number:
- FERMILAB-PUB-04-318-T,
- MADPH-04-1391
Citations per year
Abstract: (arXiv)
We construct tree-level four-particle open-string amplitudes relevant to dilepton and diphoton production at hadron colliders. We expand the amplitudes into string resonance (SR) contributions and compare the total cross-section through the first SR with the search at the Tevatron. We establish a current lower bound based on the CDF Run I results on the string scale to be about TeV, and it can be improved to about TeV with 2 fb. At the LHC, we investigate the properties of signals induced by string resonances in dilepton and diphoton processes. We demonstrate the unique aspects of SR-induced signals distinguishable from other new physics, such as the angular distributions and forward-backward asymmetry. A 95% C.L. lower bound can be reached at the LHC for TeV with an integrated luminosity of 300 fb. We emphasize the generic features and profound implications of the amplitude construction.Note:
- 25 pages, 8 figures
- 11.25.Mj
- 04.50.+h
- 12.60.-i
- anti-p p: inclusive reaction
- p p: inclusive reaction
- lepton: pair production
- Drell-Yan process
- photon: pair production
- string model: resonance
- scattering amplitude: string
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