First HAWC observations of the Sun constrain steady TeV gamma-ray emission

Albert, A.; Alfaro, R.; Álvarez, C.; Arceo, R.; Arteaga‐Velázquez, J. C.; Rojas, D. Avila; Solares, H. A. Ayala; Belmont‐Moreno, E.; BenZvi, S.; Brisbois, C.; Caballero-Mora, K. S.; Capistrán, T.; Carramiñana, A.; Casanova, S.; Castillo, M.; Cotzomi, J.; León, S. Coutińo de; León, C. De; Fuente, Eduardo de la; Dichiara, S.; Dingus, B. L.; DuVernois, Michael; Díaz-Vélez, J. C.; Engel, Kristi; Enríquez‐Rivera, O.; Espinoza, C.; Fleischhack, Henrike; Fraija, N.; García-González, J. A.; Garfias, F.; González, M. M.; Goodman, J. A.; Hampel-Arias, Z.; Harding, J. Patrick; Hernández, S.; Hona, B.; Hueyotl-Zahuantitla, F.; Hüntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, Vikas; Kaufmann, S.; Vargas, H. León; Luis-Raya, G.; Lundeen, J.; López-Coto, R.; Malone, K.; Marinelli, S. S.; Martı́nez, O.; Martínez-Castellanos, I.; Martínez-Castro, J.; Miranda-Romagnoli, P.; Moreno, E.; Mostafá, M.; Nayerhoda, A.; Nellen, L.; Newbold, M.; Noriega-Papaqui, R.; Pretz, J.; Pérez-Pérez, E. G.; Ren, Z.; Rho, Chang Dong; Rivière, C.; Rosa-González, D.; Rosenberg, M.; Ruiz-Velasco, E.; Salazar, H.; Greus, F. Salesa; Sandoval, A.; Schneider, M.; Schoorlemmer, H.; Seglar-Arroyo, M.; Sinnis, G.; Smith, A. J.; Springer, R. W.; Surajbali, P.; Taboada, I.; Tibolla, O.; Tollefson, K.; Torres, I.; Villaseñor, L.; Weisgarber, T.; Westerhoff, S.; Wisher, I. G.; Wood, J.; Yapici, T.; Zepeda, A.; Zhou, H.; Álvarez, José David Ruiz; Beacom, J. F.; Leane, Rebecca K.; Linden, Tim; Ng, Kenny C. Y.; Peter, Annika H. G.; Zhou, Bei

doi:10.1103/physrevd.98.123011

Cited by 35 publications

(55 citation statements)

References 70 publications

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“…The HAWC period of observation falls in the second half of solar cycle 24, when the Sun is slowly becoming less active over time as it approaches the upcoming solar minimum. In a companion paper, we present the details of the measurement and the sensitivity of HAWC to TeV gamma rays from the Sun [60]. We focus on gamma rays from the solar disk and, with no significant detection, our analysis rules out a gammaray flux above a few times 10 −12 TeV −1 cm −2 s −1 at near 1 TeV, approaching a sensitivity near 10% of the flux from the Crab Nebula.…”

Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

“…HAWC 95% C.L. limits on gamma-ray flux from the Sun using 3 years of data [60]. The observed flux and the 90% upper limits by the Fermi-LAT spanning the same period are shown in red (2014-2017) [71].…”

Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

“…We analyzed data collected by HAWC between November 2014 and December 2017 [60]. The HAWC period of observation falls in the second half of solar cycle 24, when the Sun is slowly becoming less active over time as it approaches the upcoming solar minimum.…”

Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

“…HAWC can search for gamma rays from the Sun in an energy range that was not accessible before. We discuss the analysis and the resulting constraints on gamma rays above 1 TeV obtained by HAWC in a companion paper [60]. Our search for gamma rays from the Sun falls within an active part of solar cycle 24 (2014-2017), which is important for dark matter searches from the Sun, as described in Sec.…”

Section: Introductionmentioning

confidence: 97%

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Constraints on spin-dependent dark matter scattering with long-lived mediators from TeV observations of the Sun with HAWC

Albert¹,

Alfaro²,

Álvarez³

et al. 2018

Phys. Rev. D

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We analyze the Sun as a source for the indirect detection of dark matter through a search for gamma rays from the solar disk. Capture of dark matter by elastic interactions with the solar nuclei followed by annihilation to long-lived mediators can produce a detectable gamma-ray flux. We search 3 years of data from the High Altitude Water Cherenkov (HAWC) observatory and find no statistically significant detection of TeV gamma-ray emission from the Sun. Using this, we constrain the spin-dependent elastic scattering cross section of dark matter with protons for dark matter masses above 1 TeV, assuming a sufficiently long-lived mediator. The results complement constraints obtained from Fermi-LAT observations of the Sun and together cover WIMP masses between 4 and 10 6 GeV. In the optimal scenario, the cross-section constraints for mediator decays to gamma rays can be as strong as ∼10 −45 cm 2 , which is more than 4 orders of magnitude stronger than current direct-detection experiments for a 1 TeV dark matter mass. The cross-section constraints at higher masses are even better, nearly 7 orders of magnitude better than the current direct-detection constraints for a 100 TeV dark matter mass. This demonstration of sensitivity encourages detailed development of theoretical models in light of these powerful new constraints.

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Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

Section: A Hawc Search For Tev Gamma Raysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Constraints on spin-dependent dark matter scattering with long-lived mediators from TeV observations of the Sun with HAWC

Albert¹,

Alfaro²,

Álvarez³

et al. 2018

Phys. Rev. D

Self Cite

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“…We have studied the effect of the magnetic field on the secondary yields by changing the [9] is also shown. In addition, we include results from gamma-ray observations from Fermi-LAT [4,56], gamma-ray HAWC's 95% limit [62] and neutrinos IceCube's 90% limit [63].…”

Section: Discussionmentioning

confidence: 99%

Cosmic-ray interactions with the Sun using the fluka code

et al. 2020

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The interactions of cosmic rays with the solar atmosphere produce secondary particle which can reach the Earth. In this work we present a comprehensive calculation of the yields of secondary particles as gamma-rays, electrons, positrons, neutrons and neutrinos performed with the FLUKA code. We also estimate the intensity at the Sun and the fluxes at the Earth of these secondary particles by folding their yields with the intensities of cosmic rays impinging on the solar surface. The results are sensitive on the assumptions on the magnetic field nearby the Sun and to the cosmic-ray transport in the magnetic field in the inner solar system.

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