Resultados de Búsqueda por Autor

artículo

Single neutral pion production by charged-current ν-μ interactions on hydrocarbon at 〈E<inf>ν</inf>〉=3.6 GeV

Publicado por
Le T., Palomino J.L., Aliaga L., Altinok O., Bercellie A., Bodek A., Bravar A., Brooks W.K., Butkevich A., Martinez Caicedo D.A., Carneiro M.F., Christy M.E., Chvojka J., da Motta H., Devan J., Dytman S.A., Díaz G.A., Eberly B., Felix J., Fields L., Fine R., Gago A.M., Gallagher H., Gran R., Harris D.A., Higuera A., Hurtado K., Kordosky M., Maher E., Manly S., Mann W.A., Marshall C.M., McFarland K.S., McGivern C.L., McGowan A.M., Miller J., Morfín J.G., Mousseau J., Nelson J.K., Norrick A., Osta J., Paolone V., Park J., Patrick C.E., Perdue G.N., Rakotondravohitra L., Ransome R.D., Ray H., Ren L., Rodrigues P.A., Ruterbories D., Schellman H., Schmitz D.W., Sobczyk J.T., Solano Salinas C.J., Tagg N., Tice B.G., Valencia E., Walton T., Wolcott J., Yepes-Ramirez H., Zavala G., Zhang D., Ziemer B.P.

Publicado 2015

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Single neutral pion production via muon antineutrino charged-current interactions in plastic scintillator (CH) is studied using the MINERvA detector exposed to the NuMI low-energy, wideband antineutrino beam at Fermilab. Measurement of this process constrains models of neutral pion production in nuclei, which is important because the neutral-current analog is a background for appearance oscillation experiments. The differential cross sections for momentum and production angle, for events with a single observed and no charged pions, are presented and compared to model predictions. These results comprise the first measurement of the kinematics for this process.

artículo

Design, calibration, and performance of the MINERvA detector

Publicado por
Aliaga L., Bagby L., Baldin B., Baumbaugh A., Bodek A., Bradford R., Brooks W.K., Boehnlein D., Boyd S., Budd H., Butkevich A., Martinez Caicedo D.A., Castromonte C.M., Christy M.E., Chvojka J., Da Motta H., Damiani D.S., Danko I., Datta M., Devan J., Draeger E., Dytman S.A., Díaz G.A., Eberly B., Edmondson D.A., Felix J., Fields L., Fiorentini G.A., Flight R.S., Gago A.M., Gallagher H., George C.A., Gielata J.A., Gingu C., Gran R., Grange J., Grossman N., Harris D.A., Heaton J., Higuera A., Hobbs J.A., Howley I.J., Hurtado K., Jerkins M., Kafka T., Kantner M.O., Keppel C., Kilmer J., Kordosky M., Krajeski A.H., Kumbartzki G.J., Lee H., Leister A.G., Locke G., Maggi G., Maher E., Manly S., Mann W.A., Marshall C.M., McFarland K.S., McGivern C.L., McGowan A.M., Mislivec A., Morfín J.G., Mousseau J., Naples D., Nelson J.K., Niculescu G., Niculescu I., O'Connor C.D., Ochoa N., Olsen J., Osmanov B., Osta J., Palomino J.L., Paolone V., Park J., Perdue G.N., Peña C., Pla-Dalmau A., Rakotondravohitra L., Ransome R.D., Ray H., Ren L., Rubinov P., Rude C., Sassin K.E., Schellman H., Schmitz D.W., Schneider R.M., Schulte E.C., Simon C., Snider F.D., Snyder M.C., Solano Salinas C.J., Tagg N., Tice B.G., Tilden R.N., Velásquez J.P., Walton T., Westerberg A.

Publicado 2014

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The skin is the largest organ of the body that protects it from the external environment. High- frequency ultra sound (HF-US) has been used to visualize the skin in depth and to diagnose some pathologies in dermatological applications. Quantitative ultrasound (QUS) includes several techniques that provide values of particular physical properties. In this thesis work, three QUS parameters are explained and used to characterize healthy skin through HF-US: attenuation coefficient slope (ACS), backscatter coefficient (BSC) and shear wave speed (SWS). They were estimated with the regularized spectral-log difference (RSLD) method, the reference phan- tom method, and the crawling wave sonoelastography method, respectively. All the three parameters were assessed in phantoms, ex vivo and in vivo skin. In calibrated phantoms, RSLD showed a reduc- tion of up to 93% of the standard deviation concern...