Possible Hints and Search for Glueball Production in Charmless Rare B Decays

Abstract

Recent data on B->p pbar K, K0 pi pi and K Kbar K hint at a $\sim 2.3$ GeV object recoiling against a kaon. This could be the narrow state observed in J/ψ-> gamma xi. Nonobservation in p pbar annihilation implies $\mathcal{B}(\xi \to p\bar{p})\sim$ few $\times 10^{-3}$, consistent with eta_c and J/ψdecays, but there are actual hints in p pbar -> phi phi and p p-> p pi^+ pi^- pi^+ pi^- p. Simple modeling shows $\mathcal{B}(B\to \xi K)\mathcal{B}(\xi \to p\bar{p})\sim 1\times 10^{-6}$, appearing as a spike in the $p\bar{p}$ spectrum, with $\sim$ 30 events per 100 fb${}^{-1}$; modes such as K K_s K_s, K phi phi, K4 pi (K f_2 pi pi) etc. should be explored. The underlying dynamics of g* -> g xi is analogous to g* -> g etaprime or gluon fragmentation. Discovery of sizable B -> xi K could be useful for CP violation studies.

4 pages, 3 figures

References in corpus (7)

• Observation of $B^{\pm }\to p\bar{p}{K}^{\pm }$
• Study of three-body charmless B decays
• Measurement of the Branching Fraction for B->eta' K and Search for B->eta'pi+
• Measurements of the branching fractions of exclusive charmless B meson decays with ${\eta }^{p}rime$ or $\omega$ mesons
• The ${\eta }^{\prime }{g}^{\ast }{g}^{\ast }$ vertex with arbitrary gluon virtualities in the perturbative QCD hard scattering approach
• Prediction of Three-body $B^0\to {\rho }^{-}p\bar{n},{\pi }^{-}p\bar{n}$ Decay Rates
• Further Experimental Studies of Two-Body Radiative ΥDecays

Cited by in corpus (23)

• Stable Massive Particles at Colliders
• Observation of B+ -> p pbar pi+, B0 -> p pbar K0, and B+ -> p pbar K*+
• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
• Study of the decay mechanism for B+ to p pbar K+ and B+ to p pbar pi+
• ppbar enhancement in B and J/Psi decay
• Evidence for the B0->ppbarK*0 and B+->eta_cK*+ decays and Study of the Decay Dynamics of B Meson Decays into ppbarh Final States
• Partial waves of baryon-antibaryon in three-body B meson decay
• Study of B+ to p Lambdabar gamma, p Lambdabar pi0 and B0 to p Lambdabar pi-
• Charmful Three-body Baryonic B decays
• Measurements of the Decays $B^0 \to \bar{D}^0\proton\antiproton$, $B^0 \to \bar{D}^{*0}\proton\antiproton$, $B^0 \to D^{-}\proton\antiprotonπ^+$, and $B^0 \to D^{*-}\proton\antiprotonπ^+$
• Angular distributions in three-body baryonic B decays
• Exclusive Baryonic B Decays Circa 2005
• Observation of B -> phi phi K
• Searches for $B_{(s)}^0\to J/\psi p\overline{p}$ and $B^{+}\to J/\psi p\overline{p}{\pi }^{+}$ decays
• Study of $B\to p\bar{p}{K}^{\ast }$ and $B\to p\bar{p}\rho$
• Identifying Glueball at 3.02 GeV in Baryonic $B$ Decays
• Near threshold ppbar enhancement in the J/psi -> omega ppbar decay
• $f_J(2220)$ and Hadronic ${\bar{B}}_s^0$ Decays
• Observation of B+ -> Phi Phi K+ and evidence for B0 -> Phi Phi K0 below Eta_C threshold
• The proton-antiproton mass threshold structure in psi(3686) radiative decay revisited
• What can we learn from $B^{+}\to D_s^{(\ast )-}{K}^{+}{\pi }^{+}$, $B_d\to D_s^{(\ast )-}{K}^0{\pi }^{+}$ and $B_d\to D_s^{(\ast )-}{K}^{\ast +}$ decays?
• Observation of the decays ${\chi }_{cJ}\to \varphi \varphi \eta$
• Measurement of Branching Fraction and Search for $CP$ Violation in $B\to \varphi \varphi K$