Lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments in chiral perturbation theory

5th International Conference on Quarks and Nuclear Physics (QNP09). Inst High Energy Phys Chinese Acad Sci, Beijing, PEOPLES R CHINA, SEP 21-25, 2009We review some recent progress in our understanding of the lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments (MMs) in terms of Chiral Perturbation Theory (ChPT) In particular, we show that at next-to-leading-order ChPT can describe the MMs of the octet baryons quite well We also make predictions for the decuplet MMs at the same chiral order Among them, the MMs of the Delta(++) and Delta(+) ate found to agree well with data within the experimental uncertainties.This work was partially supported by the MEC grant FIS2006-03438 and the European Community- Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (Hadron-Physics2, Grant Agreement 227431) under the Seventh Framework Programme of EU. L.S.G. acknowledges support from the MICINN in the Program “Juan de la Cierva.” J.M.C. acknowledges the same institution for a FPU grant

Lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments in chiral perturbation theory

We review some recent progress in our understanding of the lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments (MMs) in terms of Chiral Perturbation Theory (ChPT) In particular, we show that at next-to-leading-order ChPT can describe the MMs of the octet baryons quite well We also make predictions for the decuplet MMs at the same chiral order Among them, the MMs of the Delta(++) and Delta(+) ate found to agree well with data within the experimental uncertainties

A study of nuclear effect in F3F_3 structure function in the deep inelastic ν(νˉ)\nu(\bar\nu) reactions in nuclei

We study nuclear effect in the $F^A_3(x)$ structure function in the deep inelastic neutrino reactions on iron by taking into account Fermi motion, binding, target mass correction, shadowing and anti-shadowing corrections. Calculations have been done in a local density approximation using relativistic nuclear spectral functions which include nucleon correlations for nuclear matter. Results for $F^A_3(x)$ have been compared with the results reported at NuTeV and also with some of the older experiments reported in the literature.Comment: 4Pages, 4 Figures To appear in the AIP Proceedings of the Sixth International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region, May 18th - 22nd, 2009 held at Sitges, Barcelona (Spain

Eliciting tomato plant defenses by exposure to herbivore induced plant volatiles

[EN] When zoophytophagous mirids (Hemiptera: Miridae) feed on tomato plants they activate both direct and indirect defense mechanisms, which include the release of herbivore induced plant volatiles (HIPVs). HIPVs are capable of activating defense mechanisms in healthy neighboring plants. In this work, we investigated which of these mirid-induced HIPVs are responsible for inducing plant defenses. Healthy tomato plants were individually exposed to eight HIPVs [1-hexanol, (Z)-3-hexenol, (Z)-3-hexenyl acetate, (Z)-3-hexenyl propanoate, (Z)-3-hexenyl butanoate, hexyl butanoate, methyl jasmonate and methyl salicylate] for 24 hours. Then, the expression level of defensive genes was quantified. All HIPVs led to increased expression of defensive genes by the plant when compared to unexposed tomato plants. In a further step, (Z)-3-hexenyl propanoate and methyl salicylate were selected to study the response of four tomato key pests and one natural enemy to tomato plants previously exposed to both HIPVs relative to unexposed control plants. Plants previously exposed to both HIPVs were repellent to Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) and Frankliniella occidentalis Pergande (Thysanoptera: Thripidae), attractive to the parasitoid Encarsia formosa Gahan (Hymenoptera: Aphelinidae) and indifferent to Tetranychus urticae Koch (Acari: Tetranychidae). The volatiles emitted by plants previously exposed to both selected volatiles were also determined. Increased levels of C5 and C6 fatty acid-derived volatile compounds and beta-ionone were detected, confirming that both HIPVs significantly activated the lipoxygenase pathway. These results are the starting point to advance the use of volatile compounds as defense elicitors in tomato crops.The research leading to these results was partially funded by the Spanish Ministry of Economy and Competitiveness MINECO (AGL2014-55616-C3 and RTA201700073-00-00) and the Conselleria d'Agricultura, Pesca i Alimentacio de la Generalitat Valenciana. The authors thank Dr. Alejandro Tena (IVIA) and Alice Mockford (University of Worcester) for helpful comments on earlier versions of the manuscript.Perez-Hedo, M.; Alonso-Valiente, M.; Vacas, S.; Gallego, C.; Rambla Nebot, JL.; Navarro-Llopis, V.; Granell Richart, A.... (2021). Eliciting tomato plant defenses by exposure to herbivore induced plant volatiles. Entomologia Generalis. 41(3):209-218. https://doi.org/10.1127/entomologia/2021/1196S20921841