The CLAS Collaboration provides a comment on the physics interpretation of the results presented in a paper published by M. Amaryan et al. regarding the possible observation of a narrow structure in the mass spectrum of a photoproduction experiment.

Anghinolfi, M

Ball, J

Baltzell, NA

Battaglieri, M

Bedlinskiy, I

Bellis, M

Biselli, AS

Bookwalter, C

Boiarinov, S

Bosted, P

Burkert, VD

Carman, DS

Celentano, A

Chandavar, S

Cole, PL

Crede, V

Vita, R De

Sanctis, E De

Dey, B

Dickson, R

Doughty, D

Dugger, M

Dupre, R

Egiyan, H

Alaoui, A El

Fassi, L El

Elouadrhiri, L

Eugenio, P

Fedotov, G

Gabrielyan, MY

Garcon, M

Gilfoyle, GP

Giovanetti, KL

Girod, FX

Goetz, JT

Golovatch, E

Guidal, M

Guo, L

Hafidi, K

Hakobyan, H

Heddle, D

Hicks, K

Holtrop, Maurik

Ireland, DG

Ishkhanov, BS

Isupov, EL

Jo, HS

Joo, K

Khetarpal, P

Kim, A

Kim, W

Kubarovsky, V

Kuleshov, SV

Lu, HY

MacGregor, LJD

Markov, N

McCracken, ME

McKinnon, B

Mestayer, MD

Meyer, CA

Mirazita, M

Mokeev, V

Moriya, K

Morrison, B

Ni, A

Niccolai, S

Niculescu, G

Niculescu, I

Osipenko, M

Ostrovidov, AI

Park, K

Park, S

Pereira, S Anefalos

Pisano, S

Pogorelko, O

Pozdniakov, S

Price, JW

Ricco, G

Ripani, M

Ritchie, BG

Rossi, P

Schott, D

Schumacher, RA

Seder, E

Sharabian, YG

Smith, ES

Sober, DI

Stepanyan, SS

Stoler, P

Tang, W

Ungaro, M

Vernarsky, B

Vineyard, MF

Weygand, DP

Wood, MH

Zachariou, N

Zhao, B

April 4, 2012