Searches for long-lived charged particles in pp collisions at sqrt(s) = 7 and 8 TeV

By Cms Collaboration. 2013

149 citations recorded by the source corpus.

Results of searches for heavy stable charged particles produced in pp collisions at √ s = 7 and 8 TeV are presented corresponding to an integrated luminosity of 5.0 fb − 1 and 18.8 fb − 1 , respectively. Data collected with the CMS detector are used to study the momentum, energy deposition, and time-of-flight of signal candidates. Leptons with an electric charge between e /3 and 8 e , as well as bound states that can undergo charge exchange with the detector material, are studied. Analysis results are presented for various combinations of signatures in the inner tracker only, inner tracker and muon detector, and muon detector only. Detector signatures utilized are long time-of-flight to the outer muon system and anomalously high (or low) energy deposition in the inner tracker. The data are consistent with the expected background, and upper limits are set on the production cross section of long-lived gluinos, scalar top quarks, and scalar τ leptons, as well as pair produced long-lived leptons. Corresponding lower mass limits, ranging up to 1322 GeV/ c 2 for gluinos, are the most stringent to date.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/504143d2f95cc85ab98bd52051b046ab49b5c055

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In Nuclear and High Energy Physics

1. M. Redi
2. Alessandro Strumia
3. R. Rattazzi
4. F. Riva
5. G. Giudice
6. A. Pomarol
7. Atlas Collaboration
8. A. Wulzer

Citations in the corpus

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• Collider searches for long-lived particles beyond the Standard Model (2018, background): “1 also set limits on multiply charged particles, extending the mass bounds on 2Qe and 6Qe charges to about 690 GeV and 780 GeV, respectively [179].”
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• What is the γγ resonance at 750 GeV? (2015, background): “4 TeV in order to avoid excessive Drell-Yan production [26, 27]: thereby they cannot be lighter than M/2.”