Zobrazeno 1 - 10
of 14 195
pro vyhledávání: '"Smith, N. A"'
We perform the first global QCD analysis of electron-nucleon deep-inelastic scattering and related high-energy data including the beyond the Standard Model $U(1)_{B-L}$ gauge boson, $Z'$. Contrary to the dark photon case, we find no improvement in th
Externí odkaz:
http://arxiv.org/abs/2410.01205
Very massive stars are radiation pressure dominated. Before running out of viable nuclear fuel, they can reach a thermodynamic state where electron-positron pair-production robs them of radiation support, triggering their collapse. Thermonuclear expl
Externí odkaz:
http://arxiv.org/abs/2407.16113
Autor:
Rho, J., Park, S. -H., Arendt, R., Matsuura, M., Milisavljevic, D., Temim, T., De Looze, I., Blair, W. P., Rest, A., Fox, O., Ravi, A. P., Koo, B. -C., Barlow, M., Burrows, A., Chevalier, R., Clayton, G., Fesen, R., Fransson, C., Fryer, C., Gomez, H. L., Janka, H. -T., Kirchschlarger, F., Laming, J. M., Orlando, S., Patnaude, D., Pavlov, G., Plucinsky, P., Posselt, B., Priestley, F., Raymond, J., Sartorio, N., Schmidt, F., Slane, P., Smith, N., Sravan, N., Vink, J., Weil, K., Wheeler, J., Yoon, S. C.
We present JWST NIRCam (F356W and F444W filters) and MIRI (F770W) images and NIRSpec- IFU spectroscopy of the young supernova remnant Cassiopeia A (Cas A). We obtained the data as part of a JWST survey of Cas A. The NIRCam and MIRI images map the spa
Externí odkaz:
http://arxiv.org/abs/2406.03685
Autor:
Akiba, K., Alexander, M., Bertella, C., Biolchini, A., Bitadze, A., Bogdanova, G., Borghi, S., Bowcock, T. J. V., Bridges, K., Brock, M., Burke, A. T., Buytaert, J., Byczynski, W., Carroll, J., Coco, V., Collins, P., Davis, A., Francisco, O. De Aguiar, De Bruyn, K., De Capua, S., De Roo, K., Doherty, F., Douglas, L., Dufour, L., Dumps, R., Dutta, D., Eklund, L., Elvin, A., Farry, S., Prieto, A. Fernandez, Lima, V. Franco, Freestone, J., Fuzipeg, C., Galati, M. D., Torreira, A. Gallas, Geertsema, R. E., Gersabeck, E., Gersabeck, M., Grant, F., Halewood-leagas, T., Hennessy, K., Hulsbergen, W., Hutchcroft, D., Hynds, D., Jans, E., John, D., John, M., Jurik, N., Ketel, T., Klaver, S., Kopciewicz, P., Kostiuk, I., Kraan, M., Langstaff, M., Latham, T., Leflat, A., Cid, E. Lemos, Lukashenko, V., Merk, M., Milovanovic, M., Monk, M., Murray, D., Nasteva, I., Oblakowska-Mucha, A., Pajero, T., Parkes, C., Alvarez, A. Pazos, Trigo, E. Perez, Perry, M., Reiss, F., Rinnert, K., Rodriguez, E. Rodriguez, Rovekamp, J., Sanders, F., Smead, L. G. Scantlebury, Schiller, M., Shears, T., Smith, N. A., Snoch, A., Svihra, P., Szumlak, T., van Beuzekom, M., van Overbeek, M., Regueiro, P. Vazquez, Volkov, V., Wormald, M., Zunica, G.
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC collision rate, critically including the use of vertex information. A
Externí odkaz:
http://arxiv.org/abs/2404.13615
Autor:
Ciangottini, D., Forti, A., Heinrich, L., Skidmore, N., Alpigiani, C., Aly, M., Benjamin, D., Bockelman, B., Bryant, L., Catmore, J., D'Alfonso, M., Peris, A. Delgado, Doglioni, C., Duckeck, G., Elmer, P., Eschle, J., Feickert, M., Frost, J., Gardner, R., Garonne, V., Giffels, M., Gooding, J., Gramstad, E., Gray, L., Hegner, B., Held, A., Hernández, J., Holzman, B., Hu, F., Jashal, B. K., Kondratyev, D., Kourlitis, E., Kreczko, L., Krommydas, I., Kuhr, T., Lancon, E., Lange, C., Lange, D., Lange, J., Lenzi, P., Linden, T., Outschoorn, V. Martinez, McKee, S., Molina, J. F., Neubauer, M., Novak, A., Osborne, I., Ould-Saada, F., Pages, A. P., Pedro, K., Yzquierdo, A. Perez-Calero, Piperov, S., Pivarski, J., Rodrigues, E., Sahoo, N., Sciaba, A., Schulz, M., Sexton-Kennedy, L., Shadura, O., Šimko, T., Smith, N., Spiga, D., Stark, G., Stewart, G., Vukotic, I., Watts, G.
This white paper presents the current status of the R&D for Analysis Facilities (AFs) and attempts to summarize the views on the future direction of these facilities. These views have been collected through the High Energy Physics (HEP) Software Foun
Externí odkaz:
http://arxiv.org/abs/2404.02100
Recently the possible existence of negative gluon helicity, $\Delta g$, has been observed to be compatible with existing empirical constraints, including from jet production in polarized proton-proton collisions at RHIC, and lattice QCD data on polar
Externí odkaz:
http://arxiv.org/abs/2403.08117
Autor:
Blades, W. H., Redemann, B. W. Y., Smith, N., Sur, D., Barbieri, M. S., Xie, Y., Lech, S., Anber, E., Taheri, M. L., Wolverton, C., McQueen, T. M., Scully, J. R., Sieradzki, K.
Single-phase multi-principal element alloys (MPEAs) hold promise for improved mechanical properties as a result of multiple operative deformation modes. However, the use of many of these alloys in structural applications is limited as a consequence o
Externí odkaz:
http://arxiv.org/abs/2403.00086
Autor:
Jackson, J. M., Whitaker, J. S., Chambers, E. T., Simon, R., Guevara, C., Allingham, D., Patterson, P., Killerby-Smith, N., Askew, J., Vandenberg, T., Smith, H. A., Sanhueza, P., Stephens, I. W., Bonne, L., Polles, F., Schmiedeke, A., Honigh, N., Justen, M.
Using the upGREAT instrument on SOFIA, we have imaged [C II] 157.74 and [O I] 63.18 micron line emission from a bright photodissociation region (PDR) associated with an ionized ``bubble'' located in the Nessie Nebula, a filamentary infrared dark clou
Externí odkaz:
http://arxiv.org/abs/2402.11062
Autor:
Assafin, M., Santos-Filho, S., Morgado, B. E., Gomes-Júnior, A. R., Sicardy, B., Margoti, G., Benedetti-Rossi, G., Braga-Ribas, F., Laidler, T., Camargo, J. I. B., Vieira-Martins, R., Swift, T., Dunham, D., George, T., Bardecker, J., Anderson, C., Nolthenius, R., Bender, K., Viscome, G., Oesper, D., Dunford, R., Getrost, K., Kitting, C., Green, K., Bria, R., Olsen, A., Scheck, A., Billard, B., Wasiuta, M. E., Tatum, R., Maley, P., di Cicco, D., Gamble, D., Ceravolo, P., Ceravolo, D., Hanna, W., Smith, N., Carlson, N., Messner, S., Bean, J., Moore, J., Venable, R.
We report the results of the stellar occultation by (UII) Umbriel on September 21st, 2020. The shadow crossed the USA and Canada, and 19 positive chords were obtained. A limb parameter accounted for putative topographic features in the limb fittings.
Externí odkaz:
http://arxiv.org/abs/2310.11196
Global fits of physics models require efficient methods for exploring high-dimensional and/or multimodal posterior functions. We introduce a novel method for accelerating Markov Chain Monte Carlo (MCMC) sampling by pairing a Metropolis-Hastings algor
Externí odkaz:
http://arxiv.org/abs/2309.01454