Particle Radiation and Cosmic Rays from Cosmic 6/ Radiation and Cosmic Rays from Cosmic Strings ... Quadratic coupling: ... Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic Strings.

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Particle Radiation and Cosmic Rays from Cosmic StringsEray SabancilarPhysics Department, Arizona State University,Tempe AZ.2014 ASU-Tufts Joint Workshop on Cosmic StringsTempe, AZ,February 4th, 2014.Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsParticle RadiationEray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsThank you!Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsParticle RadiationEray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsScalar Particle Radiation Quadratic coupling: Srednicki, Theisen 87 Not significant!L d2 2. (1)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsScalar Particle Radiation Quadratic coupling: Srednicki, Theisen 87 Not significant!L d2 2. (2) Linear coupling: Dilaton ( = 1) Damour, Vilenkin 97 ,Moduli ( & 1) ES 09; Berezinsky, ES, Vilenkin 10; ES, Lunardini 12L mpd2 . (3)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsScalar Particle Radiation Quadratic coupling: Srednicki, Theisen 87 Not significant!L d2 2. (4) Linear coupling: Dilaton ( = 1) Damour, Vilenkin 97 ,Moduli ( & 1) ES 09; Berezinsky, ES, Vilenkin 10; ES, Lunardini 12L mpd2 . (5) Higgs condensate Vachaspati 10 , Higgs condensate on dark strings Hyde, Long, Vachaspati 13L d2 . (6)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsScalar Particle Radiation Quadratic coupling: Srednicki, Theisen 87 Not significant!L d2 2. (7) Linear coupling: Dilaton ( = 1) Damour, Vilenkin 97 ,Moduli ( & 1) ES 09; Berezinsky, ES, Vilenkin 10; ES, Lunardini 12L mpd2 . (8) Higgs condensate Vachaspati 10 , Higgs condensate on dark strings Hyde, Long, Vachaspati 13L d2 . (9)Tune in for JEFF HYDES and ANDREW LONGS talks after lunch!Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsScalar Particle RadiationThis talk Scalar Fields with & 1 ES 09; Berezinsky, ES, Vilenkin 10; ES, Lunardini 12L mpd2 . (10)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsRadiation Power SpectrumdPnd=G22nk|T (k, n)|2, n =k2 + m2 = 4n/L. (11)T (k, n) = 4Ld4xdd4[x X(, )]e ikX (,). (12)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsRadiation Power SpectrumdPnd=G22nk|T (k, n)|2, n =k2 + m2 = 4n/L. (13)T (k, n) = 4Ld4xdd4(x X(, ))e ikX (,). (14)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsSignificant Radiation Small Loops P 2G2 Exponentially suppressed unless L . 1/m, emitted atrest isotropically: = 4. Damour,Vilenkin 97; ES 09Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsSignificant Radiation Small Loops P 2G2 Exponentially suppressed unless L . 1/m, emitted atrest isotropically: = 4. Damour,Vilenkin 97; ES 09 Cusps P 2G2/mL, Highly boosted particles (E mmL), emitted into anarrow cone: /2. Berezinsky, ES, Vilenkin 10; Vachaspati 10Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsSignificant Radiation Small Loops P 2G2 Exponentially suppressed unless L . 1/m, emitted atrest isotropically: = 4. Damour,Vilenkin 97; ES 09 Cusps P 2G2, Highly boosted particles (E mmL), emitted into a narrowcone: /2. ES 09; Berezinsky, ES, Vilenkin 10; Vachaspati 10 Kinks P 2G2 log (ms/m), Highly boosted particles (E mmL), emittedinto into a narrow ribbon: 2/. ES, Lunardini 12Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsCosmological Constraints on Moduli Radiation from Small Loops (L . 1/m) Abundance of moduli are constrained by diffuse gamma ray background, BBN, darkmatter abundance. Damour, Vilenkin 97; ES 09Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsCosmological Constraints on Moduli Radiation from Small Loops (L . 1/m) Abundance of moduli are constrained by diffuse gamma ray background, BBN, darkmatter abundance. Damour, Vilenkin 97; ES 09 Gravitationally coupled scalar fields ( = 1) are constrained significantly. Damour,Vilenkin 97Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsCosmological Constraints on Moduli Radiation from Small Loops (L . 1/m) Abundance of moduli are constrained by diffuse gamma ray background, BBN, darkmatter abundance. ES 09 Gravitationally coupled scalar fields ( = 1) are constrained significantly.Damour, Vilenkin97 Scalar fields with stronger coupling ( > 1) are less constrained because loopsdisappear more quickly! ES 09Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsUltra High Energy Neutrinos from Cusps and Kinks Scalar particles are emitted from cusps and kinks with Lorentz factors ofc mL >> 1 into a narrow opening angle c 1/c . The rate of particle bursts that occur at redshift z in the interval (z, z + dz):dNb =n(L, z) dLL/24dV (z)1 + z. (15) The diffuse flux of neutrinos from bursts originating at redshifts z:J(E ; z) =(1 + z)4dNbdz(E , k)dN(k)k r2(z). (16)Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsParticle Radiation from Superconducting String Cusps Superheavy charge carriers are ejected from parts of strings, where the current issaturated: Easily achieved at cusps. Berezinsky, Olum, ES, Vilenkin 09.dNXdt 2I 2/e Imax , (17)I . Imax ice, ic . 1. (18) String tension: G 2/m2p . Mass of the charge carrier: mX ic.Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsFragmentation Function for Neutrinos The neutrinos are produced via pions produced from hadronic cascades. The fragmentation function: dN/dE E2Berezinsky, Kachelriess 01. The minimum neutrino energy: Emin (1GeV)/(1 + z).Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic StringsUHE Neutrino Fluxes, Detectability Limits, Upper BoundsFigure from Lunardini, ES, Yang 13109 1011 1013 101510-1110-910-710-50.001EGeVE2JHELHGeVcm-2s-1sr-1 LE (GeV) E2J(E) (GeV cm-2 s-1 sr-1) Necklaces SHDM Cusps Kinks SCSC AGN Cosmogenic FORTE NuMoon ANITA RICE SKA LOFAR JEM-EUSO nadir JEM-EUSO Itled Cosmic Necklaces:Berezinsky, Martin, Vilenkin 97; Super Heavy Dark Matter (SHDM):Berezinsky, Kachelriess, Vilenkin 98; Kuzmin,Rubakov 98: Cosmic String Cusps:Berezinksy, ES, Vilenkin 11; Cosmic String Kinks:Lunardini, ES 12; Superconducting CosmicStrings:Berezinsky, ES, Olum, Vilenkin 09; Active Galactic Nuclei:Kalashev, Kuzmin, Semikoz, Sigl 02: CosmogenicNeutrinos:Berezinsky, Zatsepin 69; Engel, Seckel, Stanev 01.Eray Sabancilar Particle Radiation and Cosmic Rays from Cosmic Strings