Production of X(3872) at PANDA
| dc.creator | Chen, G. Y. | |
| dc.creator | Ma, J. P. | |
| dc.date | 2008-02-21 | |
| dc.date | 2008-03-17 | |
| dc.date.accessioned | 2026-07-07T11:40:22Z | |
| dc.date.available | 2026-07-07T11:40:22Z | |
| dc.description | The recently discovered $X$(3872) has many possible interpretations. We study the production of $X$(3872) with PANDA at GSI for the antiproton-proton collision with two possible interpretations of X(3872). One is as a loosely-bound molecule of $D$-mesons, while another is a 2P charmonium state $χ_{c1}$ (2P). Using effective couplings we are able to give numerical predictions for the production near the threshold and the production associated with $π^0$. The produced $X$(3872) can be identified with its decay $J/ψπ^+π^-$. We also study the possible background near the threshold production for $X(3872) \to J/ψπ^+π^-$. With the designed luminosity $1.5{\rm fb}^{-1}$ per year of PANDA we find that the event number of $p\bar p \to J/ψπ^+π^-$ near the threshold is at the order of $10^6 \sim 10^8$, where the large uncertainty comes from the total decay width of X(3872). Our study shows that at the threshold more than about 60% events come from the decay of X(3872) and two interpretations are distinguishable from the line-shape of the production. With our results we except that the PANDA experiments will shed light on the property of X(3872). | |
| dc.description | minor changes | |
| dc.identifier | https://arxiv.org/abs/0802.2982 | |
| dc.identifier | http://arxiv.org/abs/0802.2982 | |
| dc.identifier | Phys.Rev.D77:097501,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.097501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200239 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Production of X(3872) at PANDA | |
| dc.type | text |