In the recent preprint 1202.1739 it was claimed that preliminary data presented by COMPASS at recent conferences confirm the existence of a resonant state of mass 38 MeV decaying to two photons. This claim was made based on structures observed in two-photon mass distributions which however were shown only to demonstrate the purity and mass resolution of the $\pi^0$ and $\eta$ signals. The additional structures are understood as remnants of secondary interactions inside the COMPASS spectrometer. Therefore, the COMPASS data do not confirm the existence of this state.In the recent preprint 1202.1739 it was claimed that preliminary data presented by COMPASS at recent conferences confirm the existence of a resonant state of mass 38 MeV decaying ...
Yordanov etal. [ 1 ] reported a measurement of the spin and magnetic moment of the ground state of 3...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
We have set limits on contributions of scalar interactions to nuclear beta decay. A magneto-optical ...
We reply to a very recent Comment arxiv:1204.2349 by Bernhard, Friedrich, Schlueter, and Schoenning ...
I review the experimental evidence for the X(3915), the candidate nonstandard meson associated with ...
I review the experimental evidence for the X(3915), the candidate nonstandard meson associated with ...
A comment is made indicating the positive evidence for the existence of meson states with mass great...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have observed exclusive production of the exotic $X(3872)$ hadron in the reaction $\mu^+~N \right...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
Yordanov etal. [ 1 ] reported a measurement of the spin and magnetic moment of the ground state of 3...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
We have set limits on contributions of scalar interactions to nuclear beta decay. A magneto-optical ...
We reply to a very recent Comment arxiv:1204.2349 by Bernhard, Friedrich, Schlueter, and Schoenning ...
I review the experimental evidence for the X(3915), the candidate nonstandard meson associated with ...
I review the experimental evidence for the X(3915), the candidate nonstandard meson associated with ...
A comment is made indicating the positive evidence for the existence of meson states with mass great...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have observed exclusive production of the exotic $X(3872)$ hadron in the reaction $\mu^+~N \right...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
We have searched for exclusive production of exotic charmonia in the reaction μ+N→μ+(J/ψπ+π−)π±N′ us...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
Yordanov etal. [ 1 ] reported a measurement of the spin and magnetic moment of the ground state of 3...
International audienceWe have searched for exclusive production of exotic charmonia in the reaction ...
We have set limits on contributions of scalar interactions to nuclear beta decay. A magneto-optical ...