Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

IRIS

We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.

Ho, D.h., Schumacher, R.a., D'Angelo, A., Deur, A., Fleming, J., Hanretty, C., et al. (2018). Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron. PHYSICAL REVIEW C, 98(4) [10.1103/PhysRevC.98.045205].

Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron

Ho, D. H.;Schumacher, R. A.;D'Angelo, A.^Supervision;Deur, A.;Fleming, J.;Hanretty, C.;Kageya, T.;Klein, F. J.;Klempt, E.;Lowry, M. M.;Lu, H.;Nikonov, V. A.;Peng, P.;Sandorfi, A. M.;Sarantsev, A. V.;Strakovsky, I. I.;Walford, N. K.;Wei, X.;Workman, R. L.;Adhikari, K. P.;Adhikari, S.;Adikaram, D.;Akbar, Z.;Ball, J.;Barion, L.;Bashkanov, M.;Bass, C. D.;Battaglieri, M.;Bedlinskiy, I.;Biselli, A. S.;Briscoe, W. J.;Boiarinov, S.;Burkert, V. D.;Cao, F.;Carman, D. S.;Celentano, A.;Chandavar, S.;Charles, G.;Chatagnon, P.;Chetry, T.;Ciullo, G.;Clary, B. A.;Cole, P.;Collins, P.;Contalbrigo, M.;Crede, V.;De Vita, R.;Defurne, M.;Diehl, S.;Djalali, C.;Dupre, R.;Egiyan, H.;Ehrhart, M.;El Alaoui, A.;El Fassi, L.;Eugenio, P.;Fedotov, G.;Fegan, S.;Fersch, R.;Filippi, A.;Fradi, A.;Ghandilyan, Y.;Giovanetti, K. L.;Girod, F. X.;Gohn, W.;Golovatch, E.;Gothe, R. W.;Griffioen, K. A.;Guidal, M.;Hafidi, K.;Hakobyan, H.;Harrison, N.;Hattawy, M.;Heddle, D.;Hicks, K.;Holtrop, M.;Ilieva, Y.;Ireland, D. G.;Ishkhanov, B. S.;Isupov, E. L.;Jenkins, D.;Jo, H. S.;Johnston, S.;Kabir, M. L.;Keller, D.;Khachatryan, G.;Khachatryan, M.;Khandaker, M.;Kim, A.;Kim, W.;Klein, A.;Kubarovsky, V.;Laine, V.;Lanza, L.;Lenisa, P.;Livingston, K.;Macgregor, I. J. D.;Marchand, D.;Markov, N.;Mayer, M.;McKinnon, B.;Meyer, C. A.;Mirazita, M.;Mokeev, V.;Montgomery, R. A.;Movsisyan, A.;Munoz Camacho, C.;Nadel-Turonski, P.;Niccolai, S.;Niculescu, G.;O'Connell, T.;Osipenko, M.;Ostrovidov, A. I.;Paolone, M.;Paremuzyan, R.;Park, K.;Pasyuk, E.;Pogorelko, O.;Price, J. W.;Prok, Y.;Protopopescu, D.;Rehfuss, M.;Ripani, M.;Riser, D.;Rizzo, A.^{Membro del Collaboration Group};Rosner, G.;Sabatié, F.;Salgado, C.;Sharabian, Y. G.;Skorodumina, Iu.;Smith, G. D.;Sober, D. I.;Sokhan, D.;Sparveris, N.;Strauch, S.;Taiuti, M.;Tan, J. A.;Ungaro, M.;Voskanyan, H.;Voutier, E.;Wang, R.;Watts, D. P.;Weinstein, L. B.;Whisnant, C. S.;Wood, M. H.;Zachariou, N.;Zhang, J.;Zhao, Z. W.;Zonta, I.

2018-10-19

Abstract

We report the first measurements of the E beam-target helicity asymmetry for the γ - n - →K0Λ and K0Σ0 channels in the energy range 1.70≤W≤2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I=0 and I=1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.

Scheda breve

Scheda completa

Scheda completa (DC)

	Data di pubblicazione
	
			19-ott-2018
		
	Status di pubblicazione
	
			Pubblicato
		
	DOI dell'articolo
	
			https://dx.doi.org/10.1103/PhysRevC.98.045205
		
	Rilevanza
	
			Rilevanza internazionale
		
	Tipo
	
			Articolo
		
	Referee
	
			Esperti anonimi
		
	Settore disciplinare dell'articolo
	
			Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
		
	Lingua del contenuto
	
			English
		
	Impact Factor ISI
	
			Con Impact Factor ISI
		
	Parole chiave
	
			Nuclear and High Energy Physics
		
	Altre informazioni significative
	
			CLAS Collaboration; HD-ice
		
	URL alternativo
	
			http://harvest.aps.org/bagit/articles/10.1103/PhysRevC.98.045205/apsxml
		
	Citazione
	
			Ho, D.h., Schumacher, R.a., D'Angelo, A., Deur, A., Fleming, J., Hanretty, C., et al. (2018). Beam-target helicity asymmetry e in K0 Λ and K0 Σ0 photoproduction on the neutron. PHYSICAL REVIEW C, 98(4) [10.1103/PhysRevC.98.045205].
		
	Tutti gli autori
	
			Ho, Dh; Schumacher, Ra; D'Angelo, A; Deur, A; Fleming, J; Hanretty, C; Kageya, T; Klein, Fj; Klempt, E; Lowry, Mm; Lu, H; Nikonov, Va; Peng, P; Sandorfi, Am; Sarantsev, Av; Strakovsky, Ii; Walford, Nk; Wei, X; Workman, Rl; Adhikari, Kp; Adhikari, S; Adikaram, D; Akbar, Z; Ball, J; Barion, L; Bashkanov, M; Bass, Cd; Battaglieri, M; Bedlinskiy, I; Biselli, As; Briscoe, Wj; Boiarinov, S; Burkert, Vd; Cao, F; Carman, Ds; Celentano, A; Chandavar, S; Charles, G; Chatagnon, P; Chetry, T; Ciullo, G; Clary, Ba; Cole, P; Collins, P; Contalbrigo, M; Crede, V; De Vita, R; Defurne, M; Diehl, S; Djalali, C; Dupre, R; Egiyan, H; Ehrhart, M; El Alaoui, A; El Fassi, L; Eugenio, P; Fedotov, G; Fegan, S; Fersch, R; Filippi, A; Fradi, A; Ghandilyan, Y; Giovanetti, Kl; Girod, Fx; Gohn, W; Golovatch, E; Gothe, Rw; Griffioen, Ka; Guidal, M; Hafidi, K; Hakobyan, H; Harrison, N; Hattawy, M; Heddle, D; Hicks, K; Holtrop, M; Ilieva, Y; Ireland, Dg; Ishkhanov, Bs; Isupov, El; Jenkins, D; Jo, Hs; Johnston, S; Kabir, Ml; Keller, D; Khachatryan, G; Khachatryan, M; Khandaker, M; Kim, A; Kim, W; Klein, A; Kubarovsky, V; Laine, V; Lanza, L; Lenisa, P; Livingston, K; Macgregor, Ijd; Marchand, D; Markov, N; Mayer, M; Mckinnon, B; Meyer, Ca; Mirazita, M; Mokeev, V; Montgomery, Ra; Movsisyan, A; Munoz Camacho, C; Nadel-Turonski, P; Niccolai, S; Niculescu, G; O'Connell, T; Osipenko, M; Ostrovidov, Ai; Paolone, M; Paremuzyan, R; Park, K; Pasyuk, E; Pogorelko, O; Price, Jw; Prok, Y; Protopopescu, D; Rehfuss, M; Ripani, M; Riser, D; Rizzo, A; Rosner, G; Sabatié, F; Salgado, C; Sharabian, Yg; Skorodumina, I; Smith, Gd; Sober, Di; Sokhan, D; Sparveris, N; Strauch, S; Taiuti, M; Tan, Ja; Ungaro, M; Voskanyan, H; Voutier, E; Wang, R; Watts, Dp; Weinstein, Lb; Whisnant, Cs; Wood, Mh; Zachariou, N; Zhang, J; Zhao, Zw; Zonta, I
		
	Tipologia
	
			Articolo su rivista
		
	Appare nelle tipologie:
	
			01 - Articolo su rivista

File in questo prodotto:

File	Dimensione	Formato
Ho_PhysRevC.98.045205.pdf accesso aperto Descrizione: Articolo Pubblicato Licenza: Copyright dell'editore Dimensione 1.88 MB Formato Adobe PDF Visualizza/Apri	1.88 MB	Adobe PDF	Visualizza/Apri

I documenti in IRIS 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/2108/207339

Citazioni

ND

11

10

social impact