Results 81 to 90 of about 304 (178)

The three-pion K-matrix at NLO in ChPT

Journal of High Energy Physics
The three-particle K-matrix, K $$ \mathcal{K} $$ df,3, is a scheme-dependent quantity that parametrizes short-range three-particle interactions in the relativistic-field-theory three-particle finite-volume formalism.
Jorge Baeza-Ballesteros, Johan Bijnens, Tomáš Husek, Fernando Romero-López, Stephen R. Sharpe, Mattias Sjö   +5 more
doaj   +1 more source

The distribution amplitude of the η c -meson at leading twist from lattice QCD

Journal of High Energy Physics
Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes.
B. Blossier, M. Mangin-Brinet, J. M. Morgado Chávez, T. San José   +3 more
doaj   +1 more source

Low-energy interactions between doubly charmed baryons and Goldstone bosons from lattice QCD

Journal of High Energy Physics
We perform a lattice QCD calculation of the S-wave interactions between the ground-state spin-1/2 doubly charmed baryons and Goldstone bosons. The lattice QCD simulations are carried out on four 2 + 1 flavor Wilson-Clover ensembles generated by the CLQCD
Jing-Yu Yi, Ze-Rui Liang, Liuming Liu, De-Liang Yao   +3 more
doaj   +1 more source

The compass hadron spectroscopy programme

Fizika B : a journal of experimental and theoretical physics, 2012
3rd International Conference on Nuclear and Particle Physics with CEBAF at Jefferson Lab, October 3-8, 2010, Dubrovnik ...
openaire   +3 more sources

Resummation for lattice QCD calculation of generalized parton distributions at nonzero skewness

Journal of High Energy Physics
Large-momentum effective theory (LaMET) provides an approach to directly calculate the x-dependence of generalized parton distributions (GPDs) on a Euclidean lattice through power expansion and a perturbative matching.
Jack Holligan, Huey-Wen Lin, Rui Zhang, Yong Zhao   +3 more
doaj   +1 more source

Investigation of the low-energy kaons hadronic interactions in light nuclei by AMADEUS

EPJ Web of Conferences, 2016
The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DAΦNE collider at LNF-INFN. This study is fundamental to solve longstanding questions concerning interactions of strange quarks in the non ...
Scordo A., Cargnelli M., Curceanu C., Fabbietti L., Marton J., Piscicchia K., Sirghi D., Tucakovic I., Vazquez Doce O., Wycech S., Zmeskal J., Mandaglio G., Martini M., Moskal P.   +13 more
doaj   +1 more source

Moments of axial-vector GPD from lattice QCD: quark helicity, orbital angular momentum, and spin-orbit correlation

Journal of High Energy Physics
In this work, we present a lattice QCD calculation of the Mellin moments of the twist-2 axial-vector generalized parton distribution (GPD), H ~ x ξ t $$ \overset{\sim }{H}\left(x,\xi, t\right) $$ , at zero skewness, ξ, with multiple values of the ...
Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou, Xiang Gao, Andreas Metz, Joshua Miller, Swagato Mukherjee, Peter Petreczky, Fernanda Steffens, Yong Zhao   +9 more
doaj   +1 more source

Gaussian processes for inferring parton distributions

Journal of High Energy Physics
The extraction of parton distribution functions (PDFs) from experimental or lattice QCD data is an ill-posed inverse problem, where regularization strongly impacts both systematic uncertainties and the reliability of the results.
Yamil Cahuana Medrano, Hervé Dutrieux, Joseph Karpie, Kostas Orginos, Savvas Zafeiropoulos, on behalf of the HadStruc Collaboration   +5 more
doaj   +1 more source

Potentialities of CdZnTe Quasi-Hemispherical Detectors for Hard X-ray Spectroscopy of Kaonic Atoms at the DAΦNE Collider. [PDF]

Sensors (Basel), 2023
Abbene L, Buttacavoli A, Principato F, Gerardi G, Bettelli M, Zappettini A, Bazzi M, Bragadireanu M, Cargnelli M, Carminati M, Clozza A, Deda G, Del Grande R, De Paolis L, Fabbietti L, Fiorini C, Guaraldo C, Iliescu M, Iwasaki M, Khreptak A, Manti S, Marton J, Miliucci M, Moskal P, Napolitano F, Niedźwiecki S, Ohnishi H, Piscicchia K, Sada Y, Sgaramella F, Shi H, Silarski M, Sirghi DL, Sirghi F, Skurzok M, Spallone A, Toho K, Tüchler M, Doce OV, Yoshida C, Zmeskal J, Scordo A, Curceanu C.   +42 more
europepmc   +1 more source

The new hadron spectroscopy.

, 2012
In the last ten years exotic hadron resonances have been discovered in high energy collider experiments. Indeed the internal structure of these hadrons, conventionally called XYZ, cannot be explained in terms of standard mesons or baryons, made up by a quark and an antiquark or by three quarks.
openaire   +1 more source