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Evidence for Muon Production by Particles from Cygnus X-3

Marshak, M. L.; Bartelt, J.; Courant, H.; Heller, K.; Joyce, T.; Peterson, E. A.; Ruddick, K.; Shupe, M.; Ayres, D. S.; Dawson, J.; Fields, T.; May, E. N.; Price, L. E.; Sivaprasad, K.

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<oai_dc:dc xmlns:dc="" xmlns:oai_dc="" xmlns:xsi="" xsi:schemaLocation="">
  <dc:creator>Marshak, M. L.</dc:creator>
  <dc:creator>Bartelt, J.</dc:creator>
  <dc:creator>Courant, H.</dc:creator>
  <dc:creator>Heller, K.</dc:creator>
  <dc:creator>Joyce, T.</dc:creator>
  <dc:creator>Peterson, E. A.</dc:creator>
  <dc:creator>Ruddick, K.</dc:creator>
  <dc:creator>Shupe, M.</dc:creator>
  <dc:creator>Ayres, D. S.</dc:creator>
  <dc:creator>Dawson, J.</dc:creator>
  <dc:creator>Fields, T.</dc:creator>
  <dc:creator>May, E. N.</dc:creator>
  <dc:creator>Price, L. E.</dc:creator>
  <dc:creator>Sivaprasad, K.</dc:creator>
  <dc:description>We have observed underground cosmic-ray muons, corresponding to a secondary flux of ∼7×10−11 cm−2 s−1, at a depth of 1800 m water equivalent, which appear to be initiated by Cygnus X-3. This identification is based on both direction and phase coherence. The existence of such secondary muons conflicts with the current understanding of photon cascades and/or the nature and location of Cygnus X-3.</dc:description>
  <dc:title>Evidence for Muon Production by Particles from Cygnus X-3</dc:title>
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