Charm Spectroscopy and Exotics at Zeus
نویسنده
چکیده
Light and charmed mesons and baryons are produced copiously in ep collisions with a centre-of-mass energy of 318GeV at HERA. During the first phase of the HERA operation (1992-2000), the ZEUS Collaboration accumulated a data sample corresponding to an integrated luminosity of ∼ 120 pb. Results on pentaquark searches, deuteron and antideuteron production and charmed-meson spectroscopy, obtained by the ZEUS Collaboration using the HERA I data, are summarised in this note.
منابع مشابه
Charm fragmentation and excited charm and charm-strange mesons at ZEUS
Charm hadrons were produced copiously in ep collisions with a centre-of-mass energy of 318GeV at HERA providing a means to study charm hadronisation. During first phase of the HERA operation (1992-2000), the ZEUS collaboration accumulated data sample corresponding to an integrated luminosity of ∼ 120 pb. Measurements of the D, D, D and Λc production a with the HERA I data were used to determine...
متن کاملStrangeness Production and Hadron Spectroscopy at HERA
An overview of the recent results on strangeness production and spectroscopy from the electron-proton collider experiments H1 and ZEUS at HERA is presented. Production of particles with light and strange quarks is discussed and compared with both theoretical predictions and with data from ee experiments. Measurements in the charm sector cover studies of the radially and orbitally excited charm ...
متن کاملCharm Hadron Spectroscopy with Zeus
Neutral orbitally excited P-wave charm mesons have been reconstructed in the D * ± π ∓ final state and the charm-strange meson D ± s1 (2536) was found in the D * ± K 0 s final state. A search for radially excited charm mesons in the D * ± π + π − final state has also been performed. A search for a charm pentaquark state near 3.1 GeV was made in the decay mode D * ± p ∓. Using more than 40,000 r...
متن کاملResonance Searches at HERA
Inclusive production of K SK 0 S in ep collisions was studied with the ZEUS detector. Significant production of J = 2 tensor mesons and of the 0 glueball candidate f0(1710) was seen. Masses and widths were compared with previous experiments. The H1 Collaboration saw a charm pentaquark candidate in the D∗p spectrum at 3.1 GeV, which was not confirmed by a ZEUS higher statistics search. With the ...
متن کاملOpen Charm and Beauty Production at Hera
Selected new results from the H1 and ZEUS collaborations on ep interactions at 300-318 GeV centre-of-mass energy are presented. The full pre-upgrade integrated luminosity of HERA of 110 pb −1 is used. Charm cross sections are measured up to high values of x B and Q 2 and are found to be well described by NLO QCD in the 3 flavour scheme. Orbitally excited D mesons are observed; radial excitation...
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 2006