Accès ouvert déclaré
2025
preprint
Measurement of Beam-Recoil Observables $C_x$ and $C_z$ for $K^+Λ$ Photoproduction
S. Adhikari, Lei Guo, T. Chetry, P. Achenbach, H. Ataç, H. Avakian, L. Baashen, L. Barion, M. Bashkanov, M Battaglieri, F Benmokhtar, A Bianconi, S Boiarinov, M. Bondí, F. Bossú, S. Bueltmann, T Cao, R Capobianco, P. Chatagnon, V. Chesnokov, H Chinchay, G. Ciullo, M Contalbrigo, V. Credé, A. D’Angelo, N. Dashyan, R. De Vita, M. Defurne, A Deur, S. Diehl, C. Djalali, M. Dugger, R. Dupré, H. Egiyan, A. El Alaoui, L. El Fassi, L Elouadrhiri, P. Eugenio, M. Umar Farooq, S. Fegan, A Filippi, C. Fogler, E. Fuchey, K. Gates, Gagik Gavàlian, B Gualtieri, K. Hafidi, H. Hakobyan, M. Hattawy, D. Heddle, A. Hobart, M. Holtrop, Y. Ilieva, D. Jenkins, S. Joosten, M Khandaker, Andrey Kim, V Klimenko, Á. Kripkó, V Kubarovsky, L. Lanza, P. Lenisa, K. Livingston, D. Marchand, D Martiryan, V Mascagna, D Matamoros, B. McKinnon, T. Mineeva, M Mirazita, C. Muñoz Camacho, P. Nadel-Turonski, T Nagorna, K. Neupane, S Niccolai, G. Niculescu, M. Osipenko, M. Ouillon, P Pandey, Mario Paolone, R. Paremuzyan, E Pasyuk, W. Phelps, N Pilleux, Santiago Rafael, L. Polizzi, Y. Prok, Amandine Radic, T. Reed, J Richards, M. Ripani, G. Rosner, P. Rossi, Carlos A. Salgado, S. Schadmand, A Schmidt, S. Shrestha, E. Sidoretti, D. Sokhan, N Sparveris, M. Spreafico, S Stepanyan, S. Strauch, Maria Tereza Freitas Tenório, R. Tyson, M. Ungaro, S. Vallarino, L Venturelli, H. Voskanyan, E Voutier, Yi Wang, U Weerasinghe, Limin Xu, Z. Xu, M. Yurov, N Zachariou, V. Ziegler, M Zurek
0Citations signalées, ce qui n’est pas une note de qualité
4Institutions déclarées
1Pays d’affiliation déclarés
Rattachement africain : fr.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Exclusive photoproduction of $K^+ Λ$ final states off a proton target has been an important component in the search for missing nucleon resonances and our understanding of the production of final states containing strange quarks. Polarization observables have been instrumental in this effort. The current work is an extension of previously published CLAS results on the beam-recoil transferred polarization observables $C_x$ and $C_z$. We extend the kinematic range up to invariant mass $W=3.33$~GeV from the previous limit of $W=2.5$~GeV with significantly improved statistical precision in the region of overlap. These data will provide for tighter constraints on the reaction models used to unravel the spectrum of nucleon resonances and their properties by not only improving the statistical precision of the data within the resonance region, but also by constraining $t$-channel processes that dominate at higher $W$ but extend into the resonance region.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
Aucun DOI disponible pour le contrôle Crossref.
Les institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Particle physics theoretical and experimental studiesParticle Accelerators and Free-Electron LasersQuantum Chromodynamics and Particle Interactions