A three-dimensional calculation of atmospheric neutrino fluxes

Tserkovnyak, Yaroslav; Komar, R. J.; Nally, C. W.; Waltham, Chris

doi:10.1016/s0927-6505(02)00159-7

Cited by 11 publications

(12 citation statements)

References 21 publications

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“…The calculation of ref. [ 53], which is based on GEANT-FLUKA, cannot be compared to ours, since the FLUKA package contained in GEANT-3 is an old and incomplete version of the present FLUKA. In particular it does not contain the fundamental PEANUT section and the high energy part (above 5 GeV) is now considered obsolete.…”

Section: Discussionmentioning

confidence: 97%

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The FLUKA atmospheric neutrino flux calculation

Battistoni

Ferrari

Montaruli

et al. 2003

Astroparticle Physics

124

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The 3-dimensional (3-D) calculation of the atmospheric neutrino flux by means of the FLUKA Monte Carlo model is here described in all details, starting from the latest data on primary cosmic ray spectra. The importance of a 3-D calculation and of its consequences have been already debated in a previous paper. Here instead the focus is on the absolute flux. We stress the relevant aspects of the hadronic interaction model of FLUKA in the atmospheric neutrino flux calculation. This model is constructed and maintained so to provide a high degree of accuracy in the description of particle production. The accuracy achieved in the comparison with data from accelerators and cross checked with data on particle production in atmosphere certifies the reliability of shower calculation in atmosphere.The results presented here can be already used for analysis by current experiments on atmospheric neutrinos. However they represent an intermediate step towards a final release, since this calculation does not yet include the bending of charged particles in atmosphere. On the other hand this last aspect, while requiring a considerable effort in a fully 3-D description of the Earth, if a high level of accuracy has to be maintained, does not affect in a significant way the analysis of atmospheric neutrino events.

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Section: Discussionmentioning

confidence: 97%

“…Along this line other attempts have been followed, like the works of ref. [ 53,51,54,55,56]. Some of these attempts are, in our opinion, biased again by the choice of interaction models which are not precise.…”

Section: Discussionmentioning

confidence: 99%

The FLUKA atmospheric neutrino flux calculation

Battistoni

Ferrari

Montaruli

et al. 2003

Astroparticle Physics

124

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“…al. [14] have performed their calculation with different hadron production generators for comparison.…”

Section: Previous Workmentioning

confidence: 99%

“…A crucial part of the study of oscillation effects with atmospheric neutrinos is a detailed knowledge of the atmospheric neutrino beam at production, before oscillations occur. Increasingly sophisticated calculations [11,12,13,14,15,16,17,18,19,20] have appeared recently. The uncertainties on the calculated flux become a limiting factor when one uses the atmospheric neutrino beam to search for sub-leading effects such as θ 13 mixing, sub-maximal mixing in the 'atmospheric' sector or effects of solar mixing [21,22].…”

Section: Introductionmentioning

confidence: 99%

Uncertainties in atmospheric neutrino fluxes

et al. 2006

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An evaluation of the principal uncertainties in the computation of neutrino fluxes produced in cosmic ray showers in the atmosphere is presented. The neutrino flux predictions are needed for comparison with experiment to perform neutrino oscillation studies. The paper concentrates on the main limitations which are due to hadron production uncertainties. It also treats primary cosmic ray flux uncertainties, which are at a lower level. The absolute neutrino fluxes are found to have errors of around 15% in the neutrino energy region important for contained events underground. Large cancellations of these errors occur when ratios of fluxes are considered, in particular, the νµ/νµ ratio below Eν = 1 GeV, the (νµ + νµ)/(νe + νe) ratio below Eν = 10 GeV and the up/down ratios above Eν = 1 GeV are at the 1% level. A detailed breakdown of the origin of these errors and cancellations is presented.

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“…The other approximation (e.g. [30,31,32]) is to make A large. There are also preliminary versions of more ambitious calculations [33,34].…”

Section: Three-dimensional Calculationsmentioning

confidence: 99%