|Speaker:||Tomoko Iwashita (Nara Women's University)|
|Title:||Search for C-odd partner of X(3872) at Belle|
|Date (JST):||Thu, May 23, 2013, 13:30 - 14:30|
|Place:||Seminar Room A|
X(3872) was discovered by Belle in 2003, in the J/ψππ final state. It opened a new era of the spectroscopy of charmonium and charmonium-like exotic states. X(3872) is still under "what is it?" category in spite of lot of work carried out by scientific community. The most famous explanation of it are tetra-quark model, molecule model, mixing model and so on. Theory suggests that there should be a C-odd partner X(3872), if X(3872) is tetra-quark or molecule. B-> J/ψηκ provide unique opportunity to search for C-odd partner of X(3872) and we tried to exploit this decay mode using the world largest B anti-B pairs collected at the Belle, KEK, Japan. In this talk, I will present the search carried out for the C-odd partner of X(3872), along with some other narrow resonances.
Luminosity has played a quite important role in achieving the precision needed to understand the nature. At the BelleII, luminosity will increase manifold and will open doors to an exciting era of precision studies.
In the end, I will say some works on it.