Dijet Signals for Low Mass Strings at the Large Hadron Collider
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201 (United States)
- Department of Physics, Northeastern University, Boston, Massachusetts 02115 (United States)
- Max-Planck-Institut fuer Physik Werner-Heisenberg-Institut, 80805 Muenchen (Germany)
Assuming that the fundamental string mass scale is in the TeV range and the theory is weakly coupled, we discuss possible signals of string physics at the Large Hadron Collider (LHC). In D-brane constructions, the dominant contributions to full-fledged string amplitudes for all the common QCD parton subprocesses leading to dijets are completely independent of the details of compactification, and can be evaluated in a parameter-free manner. We make use of these amplitudes evaluated near the first resonant pole to determine the discovery potential of LHC for the first Regge excitations of the quark and gluon. Remarkably, the reach of LHC after a few years of running can be as high as 6.8 TeV. Even after the first 100 pb{sup -1} of integrated luminosity, string scales as high as 4.0 TeV can be discovered. Data on pp{yields}direct{gamma}+ jet can provide corroboration for string physics at scales as high as 5 TeV.
- OSTI ID:
- 21179977
- Journal Information:
- Physical Review Letters, Vol. 101, Issue 24; Other Information: DOI: 10.1103/PhysRevLett.101.241803; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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