Beam-recoil transferred polarizations for the exclusive electroproduction of K+Λ and K+ς0 final states from an unpolarized proton target have been measured using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535 and 7.546 GeV span the range of four-momentum transfer Q2 from 0.3 to 4.5 GeV2 and invariant energy W from 1.6 to 2.4 GeV, while covering the full center-of-mass angular range of the K+. These new data extend the existing hyperon polarization data from CLAS in a similar kinematic range but from a significantly larger dataset. They represent an important addition to the world data, allowing for better exploration of the reaction mechanism in strangeness production processes, for further understanding of the spectrum and structure of excited nucleon states, and for improved insight into the strong interaction in the regime of nonperturbative dynamics.

Beam-recoil transferred polarization in K+Y electroproduction in the nucleon resonance region with CLAS12

Ciullo G.;Contalbrigo M.;Lenisa P.;Pappalardo L. L.;Vallarino S.;
2022

Abstract

Beam-recoil transferred polarizations for the exclusive electroproduction of K+Λ and K+ς0 final states from an unpolarized proton target have been measured using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535 and 7.546 GeV span the range of four-momentum transfer Q2 from 0.3 to 4.5 GeV2 and invariant energy W from 1.6 to 2.4 GeV, while covering the full center-of-mass angular range of the K+. These new data extend the existing hyperon polarization data from CLAS in a similar kinematic range but from a significantly larger dataset. They represent an important addition to the world data, allowing for better exploration of the reaction mechanism in strangeness production processes, for further understanding of the spectrum and structure of excited nucleon states, and for improved insight into the strong interaction in the regime of nonperturbative dynamics.
2022
Carman, D. S.; D'Angelo, A.; Lanza, L.; Mokeev, V. I.; Adhikari, K. P.; Amaryan, M. J.; Armstrong, W. R.; Atac, H.; Avakian, H.; Ayerbe Gayoso, C.; Baltzell, N. A.; Barion, L.; Battaglieri, M.; Bedlinskiy, I.; Benkel, B.; Bianconi, A.; Biselli, A. S.; Bondi, M.; Boiarinov, S.; Bossu, F.; Briscoe, W. J.; Bueltmann, S.; Bulumulla, D.; Burkert, V. D.; Capobianco, R.; Carvajal, J. C.; Celentano, A.; Chatagnon, P.; Chesnokov, V.; Chetry, T.; Ciullo, G.; Clark, L.; Cole, P. L.; Contalbrigo, M.; Costantini, G.; Crede, V.; Dashyan, N.; De Vita, R.; Defurne, M.; Deur, A.; Diehl, S.; Djalali, C.; Dupre, R.; Ehrhart, M.; El Alaoui, A.; El Fassi, L.; Elouadrhiri, L.; Fegan, S.; Filippi, A.; Gavalian, G.; Ghandilyan, Y.; Gilfoyle, G. P.; Girod, F. X.; Glazier, D. I.; Golubenko, A. A.; Gothe, R. W.; Gotra, Y.; Griffioen, K. A.; Hafidi, K.; Hakobyan, H.; Hattawy, M.; Hauenstein, F.; Hayward, T. B.; Hobart, A.; Holtrop, M.; Ilieva, Y.; Ireland, D. G.; Isupov, E. L.; Jo, H. S.; Joo, K.; Keller, D.; Khanal, A.; Kim, A.; Kim, W.; Klimenko, V.; Kripko, A.; Kubarovsky, V.; Leali, M.; Lee, S.; Lenisa, P.; Livingston, K.; Macgregor, I. J. D.; Marchand, D.; Marsicano, L.; Mascagna, V.; Mayer, M.; Mckinnon, B.; Migliorati, S.; Mineeva, T.; Mirazita, M.; Montgomery, R. A.; Munoz Camacho, C.; Nadel-Turonski, P.; Neupane, K.; Newton, J.; Niccolai, S.; Osipenko, M.; Pandey, P.; Paolone, M.; Pappalardo, L. L.; Paremuzyan, R.; Pasyuk, E.; Paul, S. J.; Pilleux, N.; Pogorelko, O.; Price, J. W.; Prok, Y.; Raue, B. A.; Reed, T.; Ripani, M.; Ritman, J.; Rizzo, A.; Rossi, P.; Sabatie, F.; Salgado, C.; Schmidt, A.; Sharabian, Y. G.; Shirokov, E. V.; Shrestha, U.; Simmerling, P.; Sokhan, D.; Sparveris, N.; Stepanyan, S.; Strakovsky, I. I.; Strauch, S.; Tyler, N.; Tyson, R.; Ungaro, M.; Vallarino, S.; Venturelli, L.; Voskanyan, H.; Voutier, E.; Watts, D. P.; Wei, K.; Wei, X.; Wishart, R.; Wood, M. H.; Yale, B.; Zachariou, N.; Zhang, J.; Ziegler, V.
File in questo prodotto:
File Dimensione Formato  
2022_PRC_105_065201_beam_recoil_transfer_Carman.pdf

solo gestori archivio

Descrizione: Full text editoriale
Tipologia: Full text (versione editoriale)
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 3.17 MB
Formato Adobe PDF
3.17 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
PhysRevC.105.065201-accepted.pdf

accesso aperto

Descrizione: Post-print
Tipologia: Post-print
Licenza: PUBBLICO - Pubblico con Copyright
Dimensione 5.44 MB
Formato Adobe PDF
5.44 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2499924
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact