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Strangeness suppression of qq creation observed in exclusive reactions

Authors :
Mestayer, M D
Park, K
Adhikari, K P
Aghasyan, M
Pereira, S Anefalos
Ball, J
Battaglieri, M
Batourine, V
Bedlinskiy, I
Biselli, A S
Boiarinov, S
Briscoe, W J
Brooks, W K
Burkert, V D
Carman, D S
Celentano, A
Chandavar, S
Charles, G
Colaneri, L
Cole, P L
Contalbrigo, M
Cortes, O
Crede, V
D'Angelo, A
Dashyan, N
De Vita, R
Deur, A
Djalali, C
Doughty, D
Dupre, R
El Alaoui, A
El Fassi, L
Elouadrhiri, L
Eugenio, P
Fedotov, G
Fleming, J A
Forest, T A
Garillon, B
Garçon, M
Ghandilyan, Y
Gilfoyle, G P
Giovanetti, K L
Girod, F X
Goetz, J T
Golovatch, E
Gothe, R W
Griffioen, K A
Guegan, B
Guidal, M
Hakobyan, H
Hanretty, C
Hattawy, M
Holtrop, M
Hughes, S M
Hyde, C E
Ilieva, Y
Ireland, D G
Jiang, H
H S, Jo
Joo, K
Keller, D
Khandaker, M
Kim, A
Kim, W
Koirala, S
Kubarovsky, V
Kuleshov, S V
Lenisa, P
Levine, W I
Livingston, K
H Y, Lu
Macgregor, I J D
Mayer, M
Mckinnon, B
Meyer, C A
Mirazita, M
Mokeev, V
Montgomery, R A
Moody, C I
Moutarde, H
Movsisyan, A
Camacho, C Munoz
Nadel-Turonski, P
Niccolai, S
Niculescu, G
Niculescu, I
Osipenko, M
Ostrovidov, A I
Pappalardo, L
Paremuzyan, R
Peng, P
Phelps, W
Pisano, S
Pogorelko, O
Pozdniakov, S
Price, J W
Protopopescu, D
Puckett, A J R
Raue, B A
Rimal, D
Ripani, M
Rizzo, A
Rosner, G
Roy, P
Sabatié, F
Saini, M S
Schott, D
Schumacher, R A
Simonyan, A
Sokhan, D
Strauch, S
Sytnik, V
Tang, W
Tian, Ye
Ungaro, M
Vernarsky, B
Vlassov, A V
Voskanyan, H
Voutier, E
Walford, N K
Watts, D P
Wei, X
Weinstein, L B
Wood, M H
Zachariou, N
Zhang, J
Zhao, Z W
Zonta, I
Source :
Physical review letters. 113(15)
Publication Year :
2014

Abstract

We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK(+), pπ(0), and nπ(+), with the CLAS detector at Jefferson Lab. Using a simple model of quark hadronization, we extract qq creation probabilities for the first time in exclusive two-body production, in which only a single qq pair is created. We observe a sizable suppression of strange quark-antiquark pairs compared to nonstrange pairs, similar to that seen in high-energy production.

Subjects

Subjects :
NO

Details

ISSN :
10797114
Volume :
113
Issue :
15
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid.dedup....c8b7e1a157155d8b6720bc2021d905f9

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