Properties of excited charm and charm-strange mesons
نویسندگان
چکیده
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...
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Exclusive semileptonic B decays to the lightest excited charmed mesons are investigated at order ΛQCD/mQ in the heavy quark effective theory. At zero recoil, ΛQCD/mQ corrections to the matrix elements of the weak currents can be written in terms of the leading Isgur-Wise functions for the corresponding transition and meson mass splittings. The differential decay rates are predicted, including Λ...
متن کاملB decays to excited charm mesons
The spectroscopy of hadrons containing one heavy quark Q, in the infinite mQ limit, is simplified by the decoupling of the heavy quark spin ~sQ from the angular momentum of the light degrees of freedom (quarks and gluons) ~sl = ~ J − ~sQ. In this heavy quark theory (HQET) the states are classified by both ~ J and ~sl, and the hadrons corresponding to the same sl belong to degenerate doublets. I...
متن کاملTowards an Understanding of the New Charm and Charm-Strange Mesons
The observation of the D∗ sJ (2317), DsJ (2460), and SELEX D ∗ sJ (2632) states with properties differing considerably from what was expected has led to a renewed interest in hadron spectroscopy. In addition to these states, non-strange partners of the DsJ states have also been observed. Understanding the D∗ 0 and D ′ 1 states can provide important insights into the DsJ states. In this contribu...
متن کاملInclusive semileptonic decays of charm and charmed-strange mesons
We have measured the inclusive semileptonic branching fractions of D0, D+, and D+ s mesons. For these measurements, we have used the full CLEO-c open-charm data samples, 818 pb−1 at ECM = 3.774 GeV, giving D 0D̄0 and D+D− events, and 602 pb−1 at ECM = 4.170 GeV, giving D∗± s D ∓ s events. We obtain B(D0 → Xeνe) = (6.46± 0.09± 0.11)%, B(D+ → Xeνe) = (16.13± 0.10 ± 0.29)%, and B(D+ s → Xeνe) = (6....
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.93.034035