26,262 research outputs found

    Heavy QQ(bar) "Fireball" Annihilation to Multiple Vector Bosons

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    Drawing analogy of replacing the nucleon by heavy chiral quark QQ, the pion by Goldstone boson GG, and πNN\pi NN coupling by GQQGQQ coupling, we construct a statistical model for QQˉ→nGQ\bar Q \to nG annihilation, i.e. into nn longitudinal weak bosons. This analogy is becoming prescient since the LHC direct bound mQ>611m_Q > 611 GeV implies strong Yukawa coupling. Taking mQ∈(1,2)m_Q \in (1, 2) TeV, the mean number ranges from 6 to over 10, with negligible two or three boson production. With individual t′t' or b′b' decays suppressed either by phase space or quark mixing, and given the strong Yukawa coupling, QQˉ→nVLQ\bar Q\to nV_L is the likely outcome for very heavy QQˉQ\bar Q production at the LHC.Comment: 4 pages, 1 figur

    New Physics and Enhanced Gluonic Penguin

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    We discuss the historical development of the gluonic B-penguin, its sensitivity to H+H^+ effects, and \bsg\sim 10--15% as a possible solution to the \Bsl and nCn_C problems. The latter and the connection of the gluonic penguin to inclusive B→η′+XsB\to \eta^\prime+ X_s production through the gluon anomaly, with the intriguing prospect of 10% inclusive CP asymmetries, bring us to topics of current interest.Comment: 6 pages, aipproc.sty, 2 figs. (included). Talk presented at b20 Conference, Chicago, June 29 - July 2, 199

    Effect of Supersymmetric Right-handed Flavor Mixing on BsB_s decays

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    Motivated by the possibility of SϕKS<0{\cal S}_{\phi K_S}<0, we study the implications for BsB_s meson system. In a specific model that realizes SϕKS<0{\cal S}_{\phi K_S}<0 with large ss-bb mixing, right-handed dynamics and a new CP phase, we present predictions for CP asymmetries in Bs→J/ψϕB_s\to J/\psi\phi, K+K−K^+K^- and ϕγ\phi\gamma decays. Even if the measurement of time-dependent CP asymmetry becomes hampered by very fast BsB_s oscillation, a finite difference between the decay rates of BsB_s mass eigenstates may enable the studies of CP violations with untagged data samples. Thus, studies of CP violation in the BsB_s system would remain useful for the extraction of new physics information.Comment: 7 pages, 15 figure
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