Results 71 to 80 of about 304 (178)

Evolution of parton distribution functions in the short-distance factorization scheme

Journal of High Energy Physics
Lattice QCD offers the possibility of computing parton distributions from first principles, although not in the usual MS ¯ $$ \overline{MS} $$ factorization scheme.
Hervé Dutrieux, Joseph Karpie, Christopher Monahan, Kostas Orginos, Savvas Zafeiropoulos, on behalf of the HadStruc collaboration   +5 more
doaj   +1 more source

Quark transverse spin-momentum correlation of the nucleon from lattice QCD: the Boer-Mulders function

Journal of High Energy Physics
We present the first lattice QCD calculation of the quark transverse spin-momentum correlation, i.e., the naive time-reversal-odd Boer-Mulders function, of the nucleon, using large-momentum effective theory (LaMET).
The Lattice Parton collaboration, Lingquan Ma, Jun Hua, Andreas Schäfer, Hai-Tao Shu, Yushan Su, Peng Sun, Lisa Walter, Wei Wang, Xiaonu Xiong, Yi-Bo Yang, Jian-Hui Zhang, Qi-An Zhang   +12 more
doaj   +1 more source

Finite-volume formalism for Nππ at maximal isospin

Journal of High Energy Physics
We extend the relativistic field theoretic finite-volume formalism to Nππ scattering states at maximal isospin, I = 5/2. As in previous work using the relativistic field theory approach, we work to all orders in a generic low-energy effective theory, and
Maxwell T. Hansen, Fernando Romero-López, Stephen R. Sharpe   +2 more
doaj   +1 more source

Hadron Spectroscopy — A 2005 Snapshot [PDF]

AIP Conference Proceedings, 2006
Some aspects of hadron spectroscopy are reviewed as of summer 2005.
openaire   +2 more sources

Light hadron spectroscopy at BESIII [PDF]

Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017), 2015
With data of 1.3 billion J/ψ events and 106 million ψ(2S) events collected with the BESIII detector operating at the BEPCII, many different analyses were performed. New baryon states were observed in partial wave analyses of charmonium decays. A comparison between the branching fraction of B(J/ψ → γfo(1710)) to the recent lattice QCD prediction of J/ψ ...
openaire   +1 more source

Lellouch-Lüscher factor for the K → 3π decays

Journal of High Energy Physics
We derive an explicit expression for the Lellouch-Lüscher (LL) factor in the K → 3π decays at leading order (without derivative couplings). Several important technical details are addressed, like a proper decomposition into the isospin amplitudes, the ...
Jin-Yi Pang, Rishabh Bubna, Fabian Müller, Akaki Rusetsky, Jia-Jun Wu   +4 more
doaj   +1 more source

Strong interaction studies with kaonic atoms

EPJ Web of Conferences, 2016
The strong interaction of antikaons (K−) with nucleons and nuclei in the low-energy regime represents an active research field connected intrinsically with few-body physics.
Marton J., Bazzi M., Beer G., Berucci C., Bosnar D., Bragadireanu A.M., Cargnelli M., Clozza A., Curceanu C., d’Uffizi A., Fiorini C., Ghio F., Guaraldo C., Hayano R., Iliescu M., Ishiwatari T., Iwasaki M., Sandri P. Levi, Okada S., Pietreanu D., Piscicchia K., Ponta T., Quaglia R., Vidal A. Romero, Sbardella E., Scordo A., Shi H., Sirghi D.L., Sirghi F., Tatsuno H., Doce O. Vazquez, Widmann E., Zmeskal J.   +32 more
doaj   +1 more source

Issues in light hadron spectroscopy [PDF]

Il Nuovo Cimento A, 1994
A high priority in light spectroscopy is to seek out and characterize various types of non-$(Q\bar{Q}$) meson. The large quantity of new data now appearing will present a great opportunity. To identify the non-$(Q\bar{Q}$) intruders one needs to know the regular $(Q\bar{Q}$) pattern well; whole meson families thus become a target for close ...
openaire   +2 more sources

Hadron spectroscopy and structure [PDF]

AIP Conference Proceedings, 1992
In this talk I review and comment upon recent developments in hadron spectroscopy and structure. The talk is organized into three main sections dealing with heavy quarkonia (QQ), hadrons containing a single heavy quark (Qq and Qqq), and hadrons containing only light quarks and glue, although I will emphasize a surprising unity of the phenomena ...
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HADRON SPECTROSCOPY AT CLAS [PDF]

International Journal of Modern Physics A, 2005
Meson photoproduction was studied at the CEBAF Large Acceptance Spectrometer (CLAS) utilizing a 5.5 GeV/c photon beam incident on a hydrogen target. Here we report on the partial wave analyzes (PWA) performed on the exclusive final states π+π+π-n and K+K-π+n.
openaire   +1 more source