Search for astrophysical tau neutrinos in three years of IceCube data

Xu, D. L.

doi:10.1103/physrevd.93.022001

Cited by 66 publications

(74 citation statements)

References 51 publications

(46 reference statements)

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“…The arrival directions of these neutrinos are consistent with an isotropic distribution, indicating that a majority of them have originated from extragalactic sources. Although tau neutrinos are yet to be identified among the observed flux (Aartsen et al 2016b), the flavor ratio is found to be consistent with ν e :ν μ :ν τ =1:1:1 from analyses that combined multiple data sets (Aartsen et al 2015b) and with events starting inside the detector for all flavor channels (Aartsen et al 2015d(Aartsen et al , 2017d. Having a close-to-equal flavor ratio is another feature of astrophysical neutrinos, which have traversed astronomical distances and hence have reached full mixing (Argüelles et al 2015;Bustamante et al 2015).…”

Section: Introductionmentioning

confidence: 64%

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

Aartsen

Ackermann²,

Adams

et al. 2018

ApJ

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We present a search for coincidence between IceCube TeV neutrinos and fast radio bursts (FRBs). During the search period from 2010 May 31 to 2016 May 12, a total of 29 FRBs with 13 unique locations have been detected in the whole sky. An unbinned maximum likelihood method was used to search for spatial and temporal coincidence between neutrinos and FRBs in expanding time windows, in both the northern and southern hemispheres. No significant correlation was found in six years of IceCube data. Therefore, we set upper limits on neutrino fluence emitted by FRBs as a function of time window duration. We set the most stringent limit obtained to date on neutrino fluence from FRBs with an E −2 energy spectrum assumed, which is 0.0021 GeV cm −2 per burst for emission timescales up to ∼10 2 s from the northern hemisphere stacking search.

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Section: Introductionmentioning

confidence: 64%

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

Aartsen

Ackermann²,

Adams

et al. 2018

ApJ

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“…The latter are very important e.g. for production of ν τ orν τ discussed in the context of IceCube [23] or SHiP [24] experiments and asymmetry of D ± s mesons [22] observed recently by the LHCb [9]. Different results have been obtained for different approaches, especially for light-toheavy fragmentation.…”

Section: Discussionmentioning

confidence: 99%

Independent quark/antiquark fragmentation to massive particles in proton–proton collisions

Maciuła¹,

Szczurek²

2020

J. Phys. G: Nucl. Part. Phys.

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We critically discuss fragmentation of quark or antiquark to massive particles (mesons or baryons) in proton-proton collisions. Both heavy and light quark/antiquark fragmentations are discussed using universal z-dependent fragmentation functions. Different scenarios how to define the z variable are considered: as a fraction of energy, momentum or light-cone momentum of the parent quark/antiquark. Also a choice of the direction of motion of hadron with respect to the parent parton must be made in the simplest approach. Energy and flavour violation is discussed for the region of small p t and/or center-of-mass y ∼ 0. Results of different approaches are compared. We show that at the LHC energies all schemes become consistent for D-meson transverse momenta larger than 2 GeV. Relations to results from the literature are made. We present some examples for production of D mesons from light and charm quarks/antiquarks. Emission with respect to the direction of motion lowers the cross section of D mesons at larger rapidities compared to the traditional approach (y D = y q/q ). As illustrated here the effect of using different prescriptions is particularly large at low energies (fixed target experiments).

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“…Additionally, two charged particles start 2. 20 Table 3. Statistics found in the sub-sample of data in which 5 629 670 protons are analyzed in one unit (1 tungsten plate).…”

Section: Reconstruction and Analysismentioning

confidence: 99%

DsTau: study of tau neutrino production with 400 GeV protons from the CERN-SPS

Aoki

Ariga

et al. 2020

J. High Energ. Phys.

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In the DsTau experiment at the CERN SPS, an independent and direct way to measure tau neutrino production following high energy proton interactions was proposed. As the main source of tau neutrinos is a decay of D s mesons, produced in proton-nucleus interactions, the project aims at measuring a differential cross section of this reaction. The experimental method is based on a use of high resolution emulsion detectors for effective registration of events with short lived particle decays. Here we present the motivation of the study, details of the experimental technique, and the first results of the analysis of the data collected during test runs, which prove feasibility of the full scale study of the process in future.

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Search for astrophysical tau neutrinos in three years of IceCube data

Cited by 66 publications

References 51 publications

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

Independent quark/antiquark fragmentation to massive particles in proton–proton collisions

DsTau: study of tau neutrino production with 400 GeV protons from the CERN-SPS

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