Higher bottomonium zoo
نویسندگان
چکیده
منابع مشابه
Hyperfine splittings in bottomonium
A universal description of the hyperfine splittings (HFS) in bottomonium and the Bq (q 1⁄4 n, s, c) mesons is obtained with a universal strong coupling constant sð Þ 1⁄4 0:310 in a spin-spin potential. Other characteristics are calculated within the field correlator method, taking the freezing value of the strong coupling independent of nf. The HFS MðB Þ MðBÞ 1⁄4 45:5ð1Þ MeV, MðB sÞ MðBsÞ 1⁄4 4...
متن کاملBottomonium Studies at BaBar
Selected studies in bottomonium physics carried out by the BaBar experiment at the SLAC PEP-II e + e − collider are presented. They include bottomonium decays to open charm, and the search for the h b (1P) and the discovery of η b (1S).
متن کاملBottomonium Polarization in Hadroproduction
The polarization of the Υ and χb2 mesons in hadron hadron collisions is considered. It is shown that both states are produced with a noticeable polarization which allows to use forthcoming data of DESY HERA-B and of the RHIC collider experiments to discriminate between the different mechanisms of heavy quarkonia production. PACS: 13.20.Gd, 13.88.+e, 13.60.Le, 12.38.Qk. Alexander von Humboldt Fe...
متن کاملBottomonium production at √
Properties of bottomonia (Υ,χb, and Υ ′) in the quark-gluon plasma (QGP) are investigated by assessing inelastic reaction rates and their interplay with open-bottom states (b quarks or B mesons) and color screening. The latter leads to vanishing quarkonium-binding energies at sufficiently high temperatures (close to the dissolution point), which, in particular, renders standard gluo-dissociatio...
متن کاملBottomonium and Charmonium at CLEO
The bottomonium and charmonium systems have long proved to be a rich source of QCD physics. Recent CLEO contributions in three disparate areas are presented: (1) the study of quark and gluon hadronization using Υ decays; (2) the interpretation of heavy charmonium states, including non-cc candidates; and (3) the exploration of light quark physics using the decays of narrow charmonium states as a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2018
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-018-6372-1