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Search for heavy, long-lived particles that decay to photons at CDF II

Publication ,  Journal Article
Abulencia, ; A, ; others,
Published in: Phys. Rev. Lett.
2007

We present the first search for heavy, long-lived particles that decay to photons at a hadron collider. We use a sample of gamma+jet+missing transverse energy events in p[overline p] collisions at sqrt(s)=1.96 TeV taken with the CDF II detector. Candidate events are selected based on the arrival time of the photon at the detector. Using an integrated luminosity of 570 pb-1 of collision data, we observe 2 events, consistent with the background estimate of 1.3$\pm$0.7 events. While our search strategy does not rely on model-specific dynamics, we set cross section limits in a supersymmetric model with chi-tilde10-->gammaG-tilde and place the world-best 95\% C.L. lower limit on the chi-tilde10 mass of 101 GeV/c2 at tauchi-tilde[sub 1][sup 0]=5 ns.

Duke Scholars

Published In

Phys. Rev. Lett.

Publication Date

2007

Volume

99

Start / End Page

121801

Related Subject Headings

  • Photons
  • Particle Accelerators
  • Nuclear Physics
  • Models, Theoretical
  • General Physics
  • Elementary Particles
  • Computer Simulation
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
 

Citation

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ICMJE
MLA
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Abulencia, ., A, ., & others, . (2007). Search for heavy, long-lived particles that decay to photons at CDF II. Phys. Rev. Lett., 99, 121801.
Abulencia, S., S. A, and S. others. “Search for heavy, long-lived particles that decay to photons at CDF II.” Phys. Rev. Lett. 99 (2007): 121801.
Abulencia, A, others. Search for heavy, long-lived particles that decay to photons at CDF II. Phys Rev Lett. 2007;99:121801.
Abulencia, S., et al. “Search for heavy, long-lived particles that decay to photons at CDF II.” Phys. Rev. Lett., vol. 99, 2007, p. 121801.
Abulencia, A, others. Search for heavy, long-lived particles that decay to photons at CDF II. Phys Rev Lett. 2007;99:121801.

Published In

Phys. Rev. Lett.

Publication Date

2007

Volume

99

Start / End Page

121801

Related Subject Headings

  • Photons
  • Particle Accelerators
  • Nuclear Physics
  • Models, Theoretical
  • General Physics
  • Elementary Particles
  • Computer Simulation
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering