hep - ph / 0307386 July 2003 χ c 1 and χ c 2 decay angular distributions at the Fermilab Tevatron
نویسندگان
چکیده
We consider the hadroproduction of χ c1 and χ c2 mesons and their subsequent radiative decays to J/ψ mesons and photons in the factorization formalism of non-relativistic quantum chromodynamics, and study the decay angular distributions, by means of helicity density matrices, in view of their sensitivity to color-octet processes. We present numerical results appropriate for the Fermilab Tevatron.
منابع مشابه
Azimuthal Correlation in Dihadron Production
where p(c,d)⊥ and y(c,d) are, respectively, the transverse momenta and the rapidities of the outgoing hadrons and χ is the azimuthal angle, as defined in figure 1. Moreover a complete QCD study has been recently carried out for the corresponding observable in DIS processes.2 From an experimental point of view, the azimuthal correlation in pion-pair production in hadronic collision was one of th...
متن کاملTrilepton Signature of Minimal Supergravity at the Upgraded Tevatron
The prospects for detecting trilepton events (ℓ = e or µ) from chargino-neutralino (χ ± 1 χ 0 2) associated production are investigated for the upgraded Fermilab Tevatron Collider in the context of the minimal supergravity model (mSUGRA). In some regions of parameter space, χ ± 1 and χ 0 2 decay dominantly into final states with τ leptons and the contributions from τ −leptonic decays enhance th...
متن کاملMultilepton SUSY signals from R - parity violation at the Tevatron
The expected trilepton signals from p¯ p → χ ± 1 χ 0 2 → (χ 0 1 ℓ ± ν)(χ 0 1 ℓ ′+ ℓ ′−) will be converted into hadronically quiet multilepton signals, if the two final χ 0 1 have leptonic R-parity-violating (RPV) decays χ 0 1 → ℓℓ ′ ν. We make illustrative calculations of the acceptance for these spectacular RPV signals, and point out that distinctive multilepton signals are possible even when ...
متن کاملTrilepton Signal of Minimal Supergravity at the Tevatron Including τ - lepton Contributions
The trilepton signal with missing transverse energy (3l+ E/T , with l = e or μ) from chargino-neutralino (χ1 χ 0 2) associated production and decays is studied for the upgraded Fermilab Tevatron Collider with 2 TeV center of mass energy and integrated luminosity of 2 fb−1 (MI) to 20 fb−1 (TeV33). In some regions of parameter space in the minimal supergravity model, χ1 and χ02 decay dominantly i...
متن کاملThe BTeV experiment at the Tevatron collider
The BTeV experiment is designed to study beauty and charm physics at the Fermilab Tevatron collider. Our goals are to make an exhaustive search for physics beyond the Standard Model (SM) and make precise measurements of the SM parameters. The important measurements to make involve CP violation, mixing, and rare decays of hadrons containing b or c quarks. The CP violation in the SM originates fr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003