Results 121 to 130 of about 211,119 (330)

Revealing transversity GPDs through the photoproduction of a photon and a ρ meson

EPJ Web of Conferences, 2016
Photoproduction of a pair of particles with large invariant mass is a natural extension of collinear QCD factorization theorems which have been much studied for deeply virtual Compton scattering and deeply virtual meson production.
Boussarie R., Pire B., Szymanowski L., Wallon S.   +3 more
doaj   +1 more source

In-medium spectral change of omega mesons as a probe of QCD four-quark condensate

, 2002
Within QCD sum rules at finite baryon density we show the crucial role of four-quark condensates for the in-medium modification of the omega meson spectral function.
Agakichiev, Asakawa, B. Kämpfer, Brown, Brown, Day, Dutt-Mazumder, Finelli, Florkowski, Friese, Friese, Gallmeister, Harada, Hatsuda, Hatsuda, Hatsuda, Hatsuda, Hatsuda, Jin, Kapusta, Karsch, Klingl, Klingl, Kämpfer, Leupold, O.P. Pavlenko, Rapp, S. Zschocke, Shifman, Weinberg, Zschocke   +30 more
core   +1 more source

Hybrid mesons [PDF]

Proceedings of Sixth International Conference on Quarks and Nuclear Physics — PoS(QNP2012), 2012
Proceedings of the Sixth International Conference on Quarks and Nuclear Physics (QNP2012).
openaire   +2 more sources

Plant responses to light competition: Does evolutionary history matter?

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants can respond to light‐competition cues with sets of plastic responses that provide either shade avoidance or tolerance and are suggested to match these strategies to the competition scenarios they experience.
Inbal First, Omer Falik, Maria Májeková, Udi Segev, Michal Gruntman   +4 more
wiley   +1 more source

ηc-nucleus bound states

Physics Letters B, 2020
ηc-nucleus bound state energies are calculated for various nuclei. Essential input for the calculations, namely the medium-modified D and D⁎ meson masses, as well as the density distributions in nuclei, are calculated within the quark-meson coupling (QMC)
J.J. Cobos-Martínez, K. Tsushima, G. Krein, A.W. Thomas   +3 more
doaj  

Neglecting non‐vascular plants leads to underestimation of grassland plant diversity loss under experimental nutrient addition

Journal of Ecology, EarlyView.
In nine grassland sites in Europe and North America, nutrient addition caused a larger relative decline in non‐vascular plant (NVP) than vascular plant species richness. Hence, not accounting for NVPs can lead to underestimation of losses in plant diversity in response to continued nutrient pollution of grasslands.
Risto Virtanen, Elizabeth T. Borer, Mick Crawley, Anne Ebeling, W. Stanley Harpole, Anita C. Risch, Christiane Roscher, Martin Schütz, Eric W. Seabloom, Anu Eskelinen   +9 more
wiley   +1 more source

Study of the production mechanism of the eta meson by means of analysing power measurements

, 2006
Information about the production mechanism of the eta meson in proton-proton collisions can be inferred by confronting the experimental studies on the analysing power for the p(pol)p --> pp eta reaction with the theoretical predictions of this observable.
A. Budzanowski, A. Khoukaz, A. Täschner, B. Kamys, B. Lorentz, C. Piskor-Ignatowicz, Czyżykiewicz R., Czyżykiewicz R., D. Gil, D. Grzonka, E. Czerwiński, Fäldt G., H. Rohdjess, H.-H. Adam, J. Majewski, J. Przerwa, J. Ritman, J. Smyrski, K. Ulbrich, L. Jarczyk, M. Janusz, M. Siemaszko, M. Wolke, P. Klaja, P. Moskal, P. Winter, P. Wüstner, R. Czyżykiewicz, T. Rożek, T. Sefzick, W. Oelert, W. Zipper   +31 more
core   +1 more source

Drivers of kelp forest refugia during successive disturbance events

Journal of Ecology, EarlyView.
Cooler areas with localized upwelling acted as climate refugia during the increased ocean temperatures from the 2014–2016 marine heatwave, supporting nutrient‐rich environments and mitigating heat stress for kelp forests. However, these temperature refugia often did not spatially overlap with areas providing protection from grazing pressure, leaving ...
Katherine C. Cavanaugh, Robert E. Weiss, Tom W. Bell, Laura Rogers‐Bennett, Kyle C. Cavanaugh   +4 more
wiley   +1 more source

Magnetic dipole moments of the negative parity $J^{PC}=2^{--}$ mesons in QCD [PDF]

arXiv, 2016
Magnetic dipole moments of the negative parity light and heavy tensor mesons are calculated within the light cone QCD sum rules method. The results are compared with the positive parity counterparts of the corresponding tensor mesons. The results of the analysis show that the magnetic dipole moments of the negative parity light mesons are smaller ...
arxiv  

Meson-Meson and Meson-Baryon Interactions in a chiral Non-perturbative Approach

, 1998
A qualitative account of the meson-meson and meson-baryon interactions using chiral Lagrangians and the inverse amplitude method in coupled channels is done. The method, imposing exact unitarity, proves to be very useful tool to extend the information contained in the chiral Lagrangians at energies beyond the realm of applicability of chiral ...
Oset Báguena, Eulogio, Oller Berber, José Antonio, Peláez Sagredo, José Ramón, Ramos Gómez, Àngels   +3 more
openaire   +3 more sources