Direct detection of Kaluza-Klein particles in neutrino telescopes

Albuquerque, I. F. M.; Burdman, Gustavo; Krenke, Christopher A.; Nosratpour, Baran

doi:10.1103/physrevd.78.015010

Cited by 8 publications

(14 citation statements)

References 33 publications

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“…The analysis of NLKP detection by neutrino observatories [3] considered three mass values of 300, 600 and 900 GeV. The two NLKP track separation in the detector is the only discriminating parameter for the highest mass considered although not the only one for NLKP masses below 600 GeV.…”

Section: Resultsmentioning

confidence: 99%

“…The separation distributions are based on 30,000 simulated events. The separation due to the initial opening angle is described in [3]. The multiple scatter enhancement to the separation is described in the previous section.…”

Section: Resultsmentioning

confidence: 99%

“…These will go through a decay chain [1,3] which will always lead to the production of two NLSPs or NLKPs. These next to lightest particles will propagate through the Earth, eventually reaching a neutrino telescope.…”

Section: Introductionmentioning

confidence: 99%

“…Here we investigate the NLSP and NLKP multiple scattering while propagating through the Earth. We consider the simulated distribution of their production point and energy loss as described in [2,3]. The separation distance between the two charged tracks in the detector will be a powerful discriminating observable.…”

Section: Introductionmentioning

confidence: 99%

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Supersymmetric and Kaluza-Klein particles multiple scattering in the Earth

Albuquerque

Klein

2009

Phys. Rev. D

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Neutrino telescopes with cubic kilometer volume have the potential to discover new particles. Among them are next to lightest supersymmetric (NLSPs) and next to lightest Kaluza-Klein (NLKPs) particles. Two NLSPs or NLKPs will transverse the detector simultaneously producing parallel charged tracks. The track separation inside the detector can be a few hundred meters. As these particles might propagate a few thousand kilometers before reaching the detector, multiple scattering could enhance the pair separation at the detector. We find that the multiple scattering will alter the separation distribution enough to increase the number of NLKP pairs separated by more than 100 meters (a reasonable experimental cut) by up to 46% depending on the NLKP mass. Vertical upcoming NLSPs will have their separation increased by 24% due to multiple scattering.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Supersymmetric and Kaluza-Klein particles multiple scattering in the Earth

Albuquerque

Klein

2009

Phys. Rev. D

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“…On the theoretical side, the supersymmetric theory (Susy) arises as a solution with no significant deviation from the standard model (SM) in relation to electroweak precision observables. It has been shown [1,2] that neutrino telescopes can probe the scale of supersymmetry breaking ( √ F ) or of Universal Extra Dimensions scenarios [3]. While R parity symmetry ensures that the lightest supersymmetric particle (LSP) is stable, the identity of the LSP is determined by √ F .…”

Section: Introductionmentioning

confidence: 99%

Indirect probes of supersymmetry breaking in the JEM-EUSO observatory

Albuquerque

Souza

2013

Phys. Rev. D

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In this paper we propose indirect probes of the scale of supersymmetry breaking, through observations in the Extreme Universe Space Observatory onboard Japanese Experiment Module (JEM-EUSO). We consider scenarios where the lightest supersymmetric particle is the gravitino, and the next to lightest (NLSP) is a long lived slepton. We demonstrate that JEM-EUSO will be able to probe models where the NLSP decays, therefore probing supersymmetric breaking scales below 5 × 10 6 GeV. The observatory field of view will be large enough to detect a few tens of events per year, depending on its energy threshold. This is complementary to a previous proposal [1] where it was shown that 1 Km 3 neutrino telescopes can directly probe this scale. NLSPs will be produced by the interaction of high energy neutrinos in the Earth. Here we investigate scenarios where they subsequently decay, either in the atmosphere after escaping the Earth or right before leaving the Earth, producing taus. These can be detected by JEM-EUSO and have two distinctive signatures: one, they are produced in the Earth and go upwards in the atmosphere, which allows discrimination from atmospheric taus and, second, as NLSPs are always produced in pairs, coincident taus will be a strong signature for these events. Assuming that the neutrino flux is equivalent to the Waxman-Bahcall limit, we determine the rate of taus from NLSP decays reaching JEM-EUSO's field of view.

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Stau detection at neutrino telescopes in scenarios with supersymmetric dark matter

Cañadas¹,

Cerdeño²,

Muñoz³

et al. 2009

J. Cosmol. Astropart. Phys.

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We have studied the detection of long-lived staus at the IceCube neutrino telescope, after their production inside the Earth through the inelastic scattering of high energy neutrinos. The theoretical predictions for the stau flux are calculated in two scenarios in which the presence of long-lived staus is naturally associated to viable supersymmetric dark matter. Namely, we consider the cases with superWIMP (gravitino or axino) and neutralino dark matter (along the coannihilation region). In both scenarios the maximum value of the stau flux turns out to be about 1 event/yr in regions with a light stau. This is consistent with light gravitinos, with masses constrained by an upper limit which ranges from 0.2 to 15 GeV, depending on the stau mass. Likewise, it is compatible with axinos with a mass of about 1 GeV and a very low reheating temperature of order 100 GeV. In the case of the neutralino dark matter this favours regions with a low value of tan β, for which the neutralino-stau coannihilation region occurs for smaller values of the stau mass. Finally, we study the case of a general supergravity theory and show how for specific choices of non-universal soft parameters the predicted stau flux can increase moderately.

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Direct detection of Kaluza-Klein particles in neutrino telescopes

Cited by 8 publications

References 33 publications

Supersymmetric and Kaluza-Klein particles multiple scattering in the Earth

Supersymmetric and Kaluza-Klein particles multiple scattering in the Earth

Indirect probes of supersymmetry breaking in the JEM-EUSO observatory

Stau detection at neutrino telescopes in scenarios with supersymmetric dark matter

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