Electromagnetic Decay of the $\Sigma^{0}(1385)$ to $\Lambda\gamma$
- Keller, D.
- Hicks, K.
- Adhikari, K.P.
- Adikaram, D.
- Aghasyan, M.
- Amarian, M.
- Baghdasaryan, H.
- Ball, J.
- Battaglieri, M.
- Batourine, V.
- Bedlinskiy, I.
- Bennett, R.P.
- Biselli, A.S.
- Branford, D.
- Briscoe, W.J.
- Brooks, W.K.
- Burkert, V.D.
- Careccia, S.L.
- Carman, D.S.
- Casey, L.
- Cole, P.L.
- Contalbrigo, M.
- Crede, V.
- d'Angelo, A.
- Daniel, A.
- Dashyan, N.
- de Vita, R.
- de Sanctis, E.
- Deur, A.
- Dey, B.
- Dickson, R.
- Djalali, C.
- Doughty, D.
- Dupre, R.
- Egiyan, H.
- El Alaoui, A.
- El Fassi, L.
- Eugenio, P.
- Fedotov, G.
- Fegan, S.
- Forest, T.A.
- Gabrielyan, M.Y.
- Gavalian, G.
- Gevorgyan, N.
- Giovanetti, K.L.
- Girod, F.X.
- Gohn, W.
- Golovatch, E.
- Gothe, R.W.
- Graham, L.
- Guidal, M.
- Guegan, B.
- Hafidi, K.
- Hakobyan, H.
- Hanretty, C.
- Holtrop, M.
- Ilieva, Y.
- Ireland, D.G.
- Isupov, E.L.
- Jawalkar, S.S.
- Jenkins, D.
- Jo, H.S.
- Joo, K.
- Khandaker, M.
- Khetarpal, P.
- Kim, A.
- Kim, W.
- Klein, A.
- Klein, F.J.
- Konczykowski, P.
- Kubarovsky, V.
- Kuleshov, S.V.
- Kuznetsov, V.
- Lu, H.Y.
- Macgregor, I.J.D.
- Markov, N.
- Mcandrew, J.
- Mckinnon, B.
- Meyer, C.A.
- Micherdzinska, A.M.
- Mirazita, M.
- Mokeev, V.
- Moreno, B.
- Moriya, K.
- Morrison, B.
- Moutarde, H.
- Munevar, E.
- Nadel-Turonski, P.
- Ni, A.
- Niccolai, S.
- Niculescu, G.
- Niculescu, I.
- Osipenko, M.
- Ostrovidov, A.I.
- Paremuzyan, R.
- Park, K.
- Park, S.
- Pasyuk, E.
- Anefalos Pereira, S.
- Pappalardo, L.L.
- Pisano, S.
- Pogorelko, O.
- Pozdniakov, S.
- Price, J.W.
- Procureur, S.
- Protopopescu, D.
- A. Raue, B.
- Ripani, M.
- Ritchie, B.G.
- Rosner, G.
- Rossi, P.
- Sabatié, F.
- S. Saini, M.
- Salgado, C.
- Schott, D.
- Schumacher, R.A.
- Seder, E.
- Seraydaryan, H.
- Sharabian, Y.G.
- Smith, E.S.
- Smith, G.D.
- Sober, D.I.
- Stepanyan, S.S.
- Stoler, P.
- Strakovsky, I.I.
- Strauch, S.
- Taiuti, M.
- Tang, W.
- Taylor, C.E.
- Vernarsky, B.
- Vineyard, M.F.
- Voutier, E.
- Weinstein, L.B.
- Watts, D.P.
- Wood, M.H.
- Zachariou, N.
- Zana, L.
- Zhao, B.
- Zhao, Z.W.
DOIAbstract
The electromagnetic decay $\Sigma^0(1385) \to \Lambda \gamma$ was studied using the CLAS detector at the Thomas Jefferson National Accelerator Facility. A real photon beam with a maximum energy of 3.8 GeV was incident on a proton target, producing an exclusive final state of $K^+\Sigma^{*0}$. We report the decay widths ratio $\Sigma^0(1385) \to \Lambda\gamma$/ $\Sigma^0(1385) \to \Lambda\pi^0$ = $1.42 \pm 0.12(\text{stat})_{-0.07}^{+0.11}(\text{sys})$%. This ratio is larger than most theoretical predictions by factors ranging from 1.5-3, but is consistent with the only other experimental measurement. From the reported ratio we calculate the partial width and electromagnetic transition magnetic moment for $\Sigma^0(1385) \to \Lambda\gamma$
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