Earth-skimming UHE tau neutrinos at the fluorescence detector of Pierre Auger Observatory

Aramo, C.; Insolia, A.; Leonardi, Antonio Alessio; Miele, Gennaro; Perrone, L.; Pisanti, O.; Semikoz, D.

doi:10.1016/j.astropartphys.2004.11.008

Cited by 71 publications

(70 citation statements)

References 45 publications

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“…Other rates are reported for the same neutrino fluxes considered in section 2 of Ref. [8]. The two GZK fluxes refer to the two possible scenarious for cosmogenic neutrinos, which are those produced from an initial flux of UHE protons.…”

Section: Resultsmentioning

confidence: 99%

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Góra

Roth²,

Tamburro

2008

Nuclear Physics B - Proceedings Supplements

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Abstract-We present a study about the possibility to detect neutrino induced extensive air showers at the Pierre Auger Observatory. The Monte Carlo simulations performed take into account the details of the neutrino propagation inside the Earth, the air as well as the surrounding mountains which are modelled by a digital elevation map. Details on the sensitivity with respect to the incoming direction as well as the aperture and the total observable event rates are calculated on the basis of various assumptions of the incoming neutrino flux.

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Section: Resultsmentioning

confidence: 99%

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Góra

Roth²,

Tamburro

2008

Nuclear Physics B - Proceedings Supplements

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“…As already shown in details in [41,53] a (r1)-event corresponds to the simultaneous fulfillment of the following conditions: 1) A ν τ with energy E ν travels over a distance z through the Earth before interacting.…”

Section: The Effective Aperture Of a Ntmentioning

confidence: 99%

“…See [41,53] for notations as well as a detailed discussion of the neutrino-nucleon cross section, σ νN CC (E ν ). In the present formalism the effect of the Earth density profile is approximated using, track by track, the averaged ̺ r along the chord subtended by that track.…”

Section: The Effective Aperture Of a Ntmentioning

confidence: 99%

“…6). In Table 2 the rate of rock/water τ events are computed for the three different km 3 NT sites using several UHE neutrino fluxes as already considered in [41,53] and described in [61]- [67] (see also Fig. 11).…”

Section: The Event Rate For ν τ Interactionsmentioning

confidence: 99%

“…where m τ = 1.78 GeV, τ τ ≃ 3.4 × 10 −13 s is the τ mean lifetime and E 0 τ is the τ energy at production, whereas the parameter β τ = 0.71 × 10 −6 cm 2 g −1 weights the leading term in the τ differential energy loss in rock [53,60],…”

Section: The Effective Aperture Of a Ntmentioning

confidence: 99%

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Ultrahigh energy neutrinos in the Mediterranean: detecting ν_τand ν_μwith a km³telescope

Cuoco

Mangano

Miele

et al. 2007

J. Cosmol. Astropart. Phys.

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We perform a study of the ultrahigh energy neutrino detection performances of a km3 neutrino telescope sitting at the three proposed sites for , and in the Mediterranean sea. We focus on the effect of the under-water surface profile on the total amount of yearly expected τ and μ crossing the fiducial volume in the limit of full detection efficiency and energy resolution. We also emphasize the possible enhancement of the matter effect by making a suitable choice of the geometry of the telescope.

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Effects of charged Higgs bosons in the deep inelastic process ν τ N → τ − X and the possibility of detecting tau-neutrinos at cosmic neutrino detectors

2008

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We study the deep inelastic process ντ + N → τ − + X (with N ≡ (n + p)/2 an isoscalar nucleon), in the context of the two-Higgs doublet model Type II (2HDM(II)). We discuss the contribution to the total cross-section of diagrams, in which a charged Higgs boson is exchanged. We present results which show strong dependence of such contributions on tan β and M H ± . We show that for tan β ≈ 150 and M H ± ≈ 300 GeV, the contribution of the charged Higgs boson exchange diagrams to the cross-section of the charged current inclusive ντ N collision can become important. We find that this contribution for an inclusive dispersion generated through the collision of an ultra-highenergy tau-neutrino with Eν ≈ 10 21 eV on a target nucleon can be as large as 40% of the value of the contribution of the W ± exchange diagrams, provided M H ± ≈ 300 GeV and tan β ≈ 150. Such enhancement and the induced variation on the mean inelasticity y CC could lead to sizeable effects in the acceptance of cosmic tau-neutrino detectors at experiments such as HiRes, PAO, and the CRTNT, which are anchored to the ground, and at experiments such as EUSO and OWL, which are proposed to orbit around the Earth. We also compare the contribution to σ tot H + from the different allowed initial quarks and we show that the contribution from the bottom quark dominates by far. This means that the H ± contribution practically always gives a top quark in the final state. Such a large component of the cross-section having a top quark event in the final state could have recognizable features in the EAS experiments.

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Earth-skimming UHE tau neutrinos at the fluorescence detector of Pierre Auger Observatory

Cited by 71 publications

References 45 publications

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Ultrahigh energy neutrinos in the Mediterranean: detecting ν_τand ν_μwith a km³telescope

Effects of charged Higgs bosons in the deep inelastic process ν τ N → τ − X and the possibility of detecting tau-neutrinos at cosmic neutrino detectors

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Earth-skimming UHE tau neutrinos at the fluorescence detector of Pierre Auger Observatory

Cited by 71 publications

References 45 publications

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Simulation of up- and down-going neutrino induced showers at the site of the Pierre Auger Observatory

Ultrahigh energy neutrinos in the Mediterranean: detecting ντand νμwith a km3telescope

Effects of charged Higgs bosons in the deep inelastic process ν τ N → τ − X and the possibility of detecting tau-neutrinos at cosmic neutrino detectors

Contact Info

Product

Resources

About

Ultrahigh energy neutrinos in the Mediterranean: detecting ν_τand ν_μwith a km³telescope