Theoretically palatable flavor combinations of astrophysical neutrinos
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Theoretically palatable flavor combinations of astrophysical neutrinos. / Bustamante, Mauricio; Beacom, John F.; Winter, Walter.
In: Physical Review Letters, Vol. 115, 161302, 08.06.2015.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Theoretically palatable flavor combinations of astrophysical neutrinos
AU - Bustamante, Mauricio
AU - Beacom, John F.
AU - Winter, Walter
N1 - 13 pages, 12 figures. Matches published version
PY - 2015/6/8
Y1 - 2015/6/8
N2 - The flavor composition of high-energy astrophysical neutrinos can reveal the physics governing their production, propagation, and interaction. The IceCube Collaboration has published the first experimental determination of the ratio of the flux in each flavor to the total. We present, as a theoretical counterpart, new results for the allowed ranges of flavor ratios at Earth for arbitrary flavor ratios in the sources. Our results will allow IceCube to more quickly identify when their data imply standard physics, a general class of new physics with arbitrary (incoherent) combinations of mass eigenstates, or new physics that goes beyond that, e.g., with terms that dominate the Hamiltonian at high energy.
AB - The flavor composition of high-energy astrophysical neutrinos can reveal the physics governing their production, propagation, and interaction. The IceCube Collaboration has published the first experimental determination of the ratio of the flux in each flavor to the total. We present, as a theoretical counterpart, new results for the allowed ranges of flavor ratios at Earth for arbitrary flavor ratios in the sources. Our results will allow IceCube to more quickly identify when their data imply standard physics, a general class of new physics with arbitrary (incoherent) combinations of mass eigenstates, or new physics that goes beyond that, e.g., with terms that dominate the Hamiltonian at high energy.
KW - astro-ph.HE
KW - hep-ph
U2 - 10.1103/PhysRevLett.115.161302
DO - 10.1103/PhysRevLett.115.161302
M3 - Journal article
VL - 115
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
M1 - 161302
ER -
ID: 184745452