@article{PAR00017107,
  title = {{A}ll-flavor search for a diffuse flux of cosmic neutrinos with nine years of {ANTARES} data},
  author = {{A}lbert, {A}. and {A}ndre, {M}. and {A}nghinolfi, {M}. and {A}nton, {G}. and {A}rdid, {M}. and {A}ubert, {J}. {J}. and {A}ublin, {J}. and {A}vgitas, {T}. and {B}aret, {B}. and {B}arrios-{M}arti, {J}. and {B}asa, {S}. and {B}elhorma, {B}. and {B}ertin, {V}. and {B}iagi, {S}. and {B}ormuth, {R}. and {B}ourret, {S}. and {B}ouwhuis, {M}. {C}. and {B}ranzas, {H}. and {B}ruijn, {R}. and {B}runner, {J}. and {B}usto, {J}. and {C}apone, {A}. and {C}aramete, {L}. and {C}arr, {J}. and {C}elli, {S}. and {E}l {M}oursli, {R}. {C}. and {C}hiarusi, {T}. and {C}ircella, {M}. and {C}oelho, {J}. {A}. {B}. and {C}oleiro, {A}. and {C}oniglione, {R}. and {C}ostantini, {H}. and {C}oyle, {P}. and {C}reusot, {A}. and {D}iaz, {A}. {F}. and {D}eschamps, {A}. and {D}e {B}onis, {G}. and {D}istefano, {C}. and {D}i {P}alma, {I}. and {D}omi, {A}. and {D}onzaud, {C}. and {D}ornic, {D}. and {D}rouhin, {D}. and {E}berl, {T}. and {E}l {B}ojaddaini, {I}. and {E}l {K}hayati, {N}. and {E}lsasser, {D}. and {E}nzenhofer, {A}. and {E}ttahiri, {A}. and {F}assi, {F}. and {F}elis, {I}. and {F}usco, {L}. {A}. and {G}ay, {P}. and {G}iordano, {V}. and {G}lotin, {H}. and {G}regoire, {T}. and {R}uiz, {R}. {G}. and {G}raf, {K}. and {H}allmann, {S}. and van {H}aren, {H}. and {H}eijboer, {A}. {J}. and {H}ello, {Y}ann and {H}ernandez-{R}ey, {J}. {J}. and {H}ossl, {J}. and {H}ofestadt, {J}. and {I}lluminati, {G}. and {J}ames, {C}. {W}. and de {J}ong, {M}. and {J}ongen, {M}. and {K}adler, {M}. and {K}alekin, {O}. and {K}atz, {U}. and {K}iessling, {D}. and {K}ouchner, {A}. and {K}reter, {M}. and {K}reykenbohm, {I}. and {K}ulikovskiy, {V}. and {L}achaud, {C}. and {L}ahmann, {R}. and {L}efevre, {D}. and {L}eonora, {E}. and {L}otze, {M}. and {L}oucatos, {S}. and {M}arcelin, {M}. and {M}argiotta, {A}. and {M}arinelli, {A}. and {M}artinez-{M}ora, {J}. {A}. and {M}ele, {R}. and {M}elis, {K}. and {M}ichael, {T}. and {M}igliozzi, {P}. and {M}oussa, {A}. and {N}avas, {S}. and {N}ezri, {E}. and {O}rganokov, {M}. and {P}avalas, {G}. {E}. and {P}ellegrino, {C}. and {P}errina, {C}. and {P}iattelli, {P}. and {P}opa, {V}. and {P}radier, {T}. and {Q}uinn, {L}. and {R}acca, {C}. and {R}iccobene, {G}. and {S}anchez-{L}osa, {A}. and {S}aldana, {M}. and {S}alvadori, {I}. and {S}amtleben, {D}. {F}. {E}. and {S}anguineti, {M}. and {S}apienza, {P}. and {S}chussler, {F}. and {S}ieger, {C}. and {S}purio, {M}. and {S}tolarczyk, {T}. and {T}aiuti, {M}. and {T}ayalati, {Y}. and {T}rovato, {A}. and {T}urpin, {D}. and {T}onnis, {C}. and {V}allage, {B}. and {V}an {E}lewyck, {V}. and {V}ersari, {F}. and {V}ivolo, {D}. and {V}izzoca, {A}. and {W}ilms, {J}. and {Z}ornoza, {J}. {D}. and {Z}uniga, {J}. and {ANTARES} {C}ollaboration},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {ANTARES} detector is at present the most sensitive neutrino telescope in the northern hemisphere. {T}he highly significant cosmic neutrino excess observed by the {A}ntarctic {I}ce{C}ube detector can be studied with {ANTARES}, exploiting its complementing field of view, exposure, and lower energy threshold. {S}earches for an all-flavor diffuse neutrino signal, covering nine years of {ANTARES} data taking, are presented in this {L}etter. {U}pward-going events are used to reduce the atmospheric muon background. {T}his work includes for the first time in {ANTARES} both track-like (mainly nu mu) and shower-like (mainly nu(e)) events in this kind of analysis. {T}rack-like events allow for an increase of the effective volume of the detector thanks to the long path traveled by muons in rock and/ or sea water. {S}hower-like events are well reconstructed only when the neutrino interaction vertex is close to, or inside, the instrumented volume. {A} mild excess of high-energy events over the expected background is observed in nine years of {ANTARES} data in both samples. {T}he best fit for a single power-law cosmic neutrino spectrum, in terms of perflavor flux at 100 {T}e{V}, is {P}hi(1f)(0) (100 {T}e{V}) = (1.7 +/- 1.0) x 10(-18) {G}e{V}-1 cm(-2) s(-1) sr(-1) with spectral index {G}amma = 2.4(-0.4)(+0.5) .{T}he null cosmic flux assumption is rejected with a significance of 1.6 sigma .},
  keywords = {astroparticle physics ; neutrinos},
  booktitle = {},
  journal = {{A}strophysical {J}ournal {L}etters},
  volume = {853},
  numero = {1},
  pages = {{L}7},
  ISSN = {2041-8205},
  year = {2018},
  DOI = {10.3847/2041-8213/aaa4f6},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00017107},
}