| mechan. |
beauty antiquark (MichaelBurov); bottom antiquark (MichaelBurov); b antiquark (MichaelBurov); b-antiquark (MichaelBurov); anti-b quark (MichaelBurov); anti b quark (MichaelBurov); anti-beauty quark (MichaelBurov); anti-bottom quark (MichaelBurov) |
