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The error on the charged kaon mass has changed slightly between 2023 and 2024 due to a bug in the way the scale factor is calculated, seems also to occur in other nodes (question to Richie).
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The issue on the psi(2S) mass fit was raised by A. Shamov. Also the fits and scale factors were not computed properly. By excluding measurements with large errors (the so-called “weak measurements”) from the calculation of the error, but including them in the fit, leads to a huge scaling factor. This raises the question as to why weak measurements are excluded after all. See Juanjo’s slides.
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The psi(3770) mass is said to be computed incorrectly (ANASHIN 2023A) due to interference with the non-resonant DDbar background.
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The X(1835) and X(2370) states are shown to be 0-+ (ABLIKIM 24) to be encoded this Fall (CA, RM) supersedes ABLIKIM 20Q. Some corrections/updates are needed in the listings and headers, 0+(0-+) and replace X by eta. Inclusion in summary table?
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Spin 2 “glueballs” decaying into phi-phi, f2(2010,2300,2340): there is a 4th one, and the masses are different in a missing 2004 reference in RPP with an analysis using K- matrices, which should in principle be more reliable. Hence these nodes to be refurbished. AM and CA to look at this.
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The e+e- partial width of the ρ meson is given in the summary table. In RPP 2023 and many previous editions we gave for the mass the one for the neutral ρ and for the width the one for the charged ρ, peculiar, ... In RPP 2024 we give for the mass and width only the one for the neutral ρ which are believed to be most reliable. The mass and
width of the charged ρ could also be given in the header.
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Further states with positive charges to be changed to +-, see errors in RPP24 (Piotr corrected some already). Analyses usually refer to both +- charges, but this must be said in the paper. Beware when encoding: LHCb papers make this statement as bibliographic references!! In principle if the isospin I = 1 is given in the header, the charge is not needed. RM and CA will look at this, Piotr agrees to make all needed changes.
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There was evidence for an omega(2205) ABLIKIM 22I, PRD 105 (2022) 032005 observed in ee-> omega 2pi0 which we had put into M300J80. Now ABLIKIM 2023G makes an analysis of omega pi+pi- combined with omega pi0pi0. From the charged 2pi mode it could be rho or omega, from the neutral 2pi mode omega. The new node, omega(2220) now contains the data from M300J80. Some entries under rho(2170) might have to be moved into this node (to check) .
