Strangeness suppression of q q ¯ creation observed in exclusive reactions

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

doi:10.1103/PhysRevLett.113.152004

Strangeness suppression of q q ¯ creation observed in exclusive reactions

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

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Abstract

We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK+, pπ0, 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.

Original language	English
Article number	152004
Journal	Physical Review Letters
Volume	113
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.113.152004
State	Published - 10 Oct 2014

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10.1103/PhysRevLett.113.152004

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Mestayer, M. D., Park, K., Adhikari, K. P., Aghasyan, M., Pereira, S. A., 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., ... Zonta, I. (2014). Strangeness suppression of q q ¯ creation observed in exclusive reactions. Physical Review Letters, 113(15), Article 152004. https://doi.org/10.1103/PhysRevLett.113.152004

@article{cc8548ea975047de8c18f173a6b90318,

title = "Strangeness suppression of q q ¯ creation observed in exclusive reactions",

abstract = "We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK+, pπ0, 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.",

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

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

month = oct,

day = "10",

doi = "10.1103/PhysRevLett.113.152004",

language = "English",

volume = "113",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

Mestayer, MD, Park, K, Adhikari, KP, Aghasyan, M, Pereira, SA, Ball, J, Battaglieri, M, Batourine, V, Bedlinskiy, I, Biselli, AS, Boiarinov, S, Briscoe, WJ, Brooks, WK, Burkert, VD, Carman, DS, Celentano, A, Chandavar, S, Charles, G, Colaneri, L, Cole, PL, 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, JA, Forest, TA, Garillon, B, Garçon, M, Ghandilyan, Y, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Golovatch, E, Gothe, RW, Griffioen, KA, Guegan, B, Guidal, M, Hakobyan, H, Hanretty, C, Hattawy, M, Holtrop, M, Hughes, SM, Hyde, CE, Ilieva, Y, Ireland, DG, Jiang, H, Jo, HS, Joo, K, Keller, D, Khandaker, M, Kim, A, Kim, W, Koirala, S, Kubarovsky, V, Kuleshov, SV, Lenisa, P, Levine, WI, Livingston, K, Lu, HY, MacGregor, IJD, Mayer, M, McKinnon, B, Meyer, CA, Mirazita, M, Mokeev, V, Montgomery, RA, Moody, CI, Moutarde, H, Movsisyan, A, Camacho, CM, Nadel-Turonski, P, Niccolai, S, Niculescu, G, Niculescu, I, Osipenko, M, Ostrovidov, AI, Pappalardo, LL, Paremuzyan, R, Peng, P, Phelps, W, Pisano, S, Pogorelko, O, Pozdniakov, S, Price, JW, Protopopescu, D, Puckett, AJR, Raue, BA, Rimal, D, Ripani, M, Rizzo, A, Rosner, G, Roy, P, Sabatié, F, Saini, MS, Schott, D, Schumacher, RA, Simonyan, A, Sokhan, D, Strauch, S, Sytnik, V, Tang, W, Tian, Y, Ungaro, M, Vernarsky, B, Vlassov, AV, Voskanyan, H, Voutier, E, Walford, NK, Watts, DP, Wei, X, Weinstein, LB, Wood, MH, Zachariou, N, Zhang, J, Zhao, ZW & Zonta, I 2014, 'Strangeness suppression of q q ¯ creation observed in exclusive reactions', Physical Review Letters, vol. 113, no. 15, 152004. https://doi.org/10.1103/PhysRevLett.113.152004

TY - JOUR

T1 - Strangeness suppression of q q ¯ creation observed in exclusive reactions

AU - Mestayer, M. D.

AU - Park, K.

AU - Adhikari, K. P.

AU - Aghasyan, M.

AU - Pereira, S. Anefalos

AU - Ball, J.

AU - Battaglieri, M.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Charles, G.

AU - Colaneri, L.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Cortes, O.

AU - Crede, V.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - Deur, A.

AU - Djalali, C.

AU - Doughty, D.

AU - Dupre, R.

AU - El Alaoui, A.

AU - El Fassi, L.

AU - Elouadrhiri, L.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fleming, J. A.

AU - Forest, T. A.

AU - Garillon, B.

AU - Garçon, M.

AU - Ghandilyan, Y.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Golovatch, E.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guegan, B.

AU - Guidal, M.

AU - Hakobyan, H.

AU - Hanretty, C.

AU - Hattawy, M.

AU - Holtrop, M.

AU - Hughes, S. M.

AU - Hyde, C. E.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Jiang, H.

AU - Jo, H. S.

AU - Joo, K.

AU - Keller, D.

AU - Khandaker, M.

AU - Kim, A.

AU - Kim, W.

AU - Koirala, S.

AU - Kubarovsky, V.

AU - Kuleshov, S. V.

AU - Lenisa, P.

AU - Levine, W. I.

AU - Livingston, K.

AU - Lu, H. Y.

AU - MacGregor, I. J.D.

AU - Mayer, M.

AU - McKinnon, B.

AU - Meyer, C. A.

AU - Mirazita, M.

AU - Mokeev, V.

AU - Montgomery, R. A.

AU - Moody, C. I.

AU - Moutarde, H.

AU - Movsisyan, A.

AU - Camacho, C. Munoz

AU - Nadel-Turonski, P.

AU - Niccolai, S.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Pappalardo, L. L.

AU - Paremuzyan, R.

AU - Peng, P.

AU - Phelps, W.

AU - Pisano, S.

AU - Pogorelko, O.

AU - Pozdniakov, S.

AU - Price, J. W.

AU - Protopopescu, D.

AU - Puckett, A. J.R.

AU - Raue, B. A.

AU - Rimal, D.

AU - Ripani, M.

AU - Rizzo, A.

AU - Rosner, G.

AU - Roy, P.

AU - Sabatié, F.

AU - Saini, M. S.

AU - Schott, D.

AU - Schumacher, R. A.

AU - Simonyan, A.

AU - Sokhan, D.

AU - Strauch, S.

AU - Sytnik, V.

AU - Tang, W.

AU - Tian, Ye

AU - Ungaro, M.

AU - Vernarsky, B.

AU - Vlassov, A. V.

AU - Voskanyan, H.

AU - Voutier, E.

AU - Walford, N. K.

AU - Watts, D. P.

AU - Wei, X.

AU - Weinstein, L. B.

AU - Wood, M. H.

AU - Zachariou, N.

AU - Zhang, J.

AU - Zhao, Z. W.

AU - Zonta, I.

PY - 2014/10/10

Y1 - 2014/10/10

N2 - We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK+, pπ0, 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.

AB - We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK+, pπ0, 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.

UR - http://www.scopus.com/inward/record.url?scp=84907855892&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.152004

DO - 10.1103/PhysRevLett.113.152004

M3 - Article

AN - SCOPUS:84907855892

SN - 0031-9007

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 152004

ER -

Strangeness suppression of q q ¯ creation observed in exclusive reactions

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