Dijet Signals for Low Mass Strings at the Large Hadron Collider

Luis A. Anchordoqui, Haim Goldberg, Dieter Lüst, Satoshi Nawata, Stephan Stieberger, and Tomasz R. Taylor
Phys. Rev. Lett. 101, 241803 – Published 11 December 2008

Abstract

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 100pb1 of integrated luminosity, string scales as high as 4.0 TeV can be discovered. Data on ppdirectγ+ jet can provide corroboration for string physics at scales as high as 5 TeV.

  • Figure
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  • Received 6 August 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.241803

©2008 American Physical Society

Authors & Affiliations

Luis A. Anchordoqui1, Haim Goldberg2, Dieter Lüst3,4, Satoshi Nawata1, Stephan Stieberger3, and Tomasz R. Taylor2

  • 1Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA
  • 2Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA
  • 3Max-Planck-Institut für Physik Werner-Heisenberg-Institut, 80805 München, Germany
  • 4Arnold Sommerfeld Center for Theoretical Physics Ludwig-Maximilians-Universität München, 80333 München, Germany

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Issue

Vol. 101, Iss. 24 — 12 December 2008

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