1 / 7

Update on angle studies of the X(3872)

Update on angle studies of the X(3872). Preliminary!!!!!. S.K. Choi & S.L. Olsen. Jan 21, 2005 Belle charmonium group video Meeting (Jan 20 in Hawaii). J PC for J ≤ 2. can we just dismiss 1 -- ?. K.Seth hep-ph/0411122: Proposes that the X(37872) is a vector glueball,

malory
Télécharger la présentation

Update on angle studies of the X(3872)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Update on angle studies of the X(3872) Preliminary!!!!! S.K. Choi & S.L. Olsen Jan 21, 2005 Belle charmonium group video Meeting (Jan 20 in Hawaii)

  2. JPC for J ≤ 2

  3. can we just dismiss 1-- ? K.Seth hep-ph/0411122: Proposes that the X(37872) is a vector glueball, i.e. ggg with small cc mixture. DD decays are not seen because gggcq + cq is small

  4. 1-- 1--: sin2qKm compute angles in J/y restframe qKm K D.V. Bugg hep-ph/0410168v2

  5. data y’: c2/dof = 8.9/9 X: c2/dof = 60.3/9 y’ is 1-- X(3872) is not!

  6. JPC for J ≤ 2

  7. Summary • Thanks to Rosner & Bugg we can learn a lot from ang. distributions with only ~50 events • Rule out 0 -+, 0++ , 1+- and 1-- • 2 - - seems unlikely (c2/dof = 23/9) • 1++ looks good • only non-exotic assignment left with J≤1 • 1++ is favored by molecular models

More Related