Study of π-p → π-ηp and π-p → π-ηηp at √s=18.9 GeV with the COMPASS experiment

被引：1
作者：
Uman, I. [1 ]
Schlueter, T. [1 ]
机构：
[1] Univ Munich, Dept Phys, D-85748 Garching, Germany
来源：
HADRON 2009 | 2010年 / 1257卷
关键词：
hadron spectroscopy; light meson spectrum; gluonic excitations; exotic mesons; hybrids; RESONANCES; REST;
D O I：
10.1063/1.3483381
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The COMPASS experiment at CERN studies diffractively produced states in the light quark sector with unprecedented statistics. The observation of f(0)(1500)/f(2)'(1525) decaying to eta eta in 2008 data with incoming negative pion beam at 190 GeV/c poses the question whether it is produced centrally or formed by the decay of a heavier diffractively produced pi(1)(1800)/pi(2)(1880). To decide, a dedicated amplitude analysis which includes different production mechanisms is formulated and compared with one which was used to fit centrally produced resonances including f(0)(1500) by the WA102 experiment. Unbinned mass-dependent log-likelihood fitting methods may serve to solve the ambiguities which are present in binned, mass-independent partial wave analyses.
引用
收藏
页码：505 / 509
页数：5
相关论文
共 11 条
  • [1] Evidence for a πη-P-wave in (p)over-barp-annihilations at rest into π0π0η
    Abele, A
    Adomeit, J
    Amsler, C
    Baker, CA
    Barnett, BM
    Batty, CJ
    Benayoun, M
    Berdoz, A
    Beuchert, K
    Bischoff, S
    Blüm, P
    Braune, K
    Case, T
    Cramer, O
    Credé, V
    Crowe, KM
    Degener, T
    Djaoshvili, N
    Von Dombrowski, S
    Doser, M
    Dünnweber, W
    Ehmanns, A
    Engelhardt, D
    Faessler, MA
    Giarritta, P
    Haddock, RP
    Heinsius, FH
    Heinzelmann, M
    Herbstrith, A
    Herz, M
    Hessey, NP
    Hidas, P
    Holtzhaussen, C
    Hüttmann, K
    Jamnik, D
    Kalinowsky, H
    Kämmle, B
    Kammel, P
    Kisiel, J
    Klempt, E
    Koch, H
    Kolo, C
    Kunze, M
    Kurilla, U
    Lakata, M
    Landua, R
    Matthäy, H
    McCrady, R
    Meier, J
    Meyer, CA
    [J]. PHYSICS LETTERS B, 1999, 446 (3-4) : 349 - 355
  • [2] Exotic ηπ state in (p)over-bar-d annihilation at rest into π-π0η pspectator
    Abele, A
    Adomeit, J
    Amsler, C
    Baker, CA
    Barnett, BM
    Batty, CJ
    Benayoun, M
    Berdoz, A
    Beuchert, K
    Bischoff, S
    Blum, P
    Braune, K
    Bugg, DV
    Case, T
    Cramer, O
    Crede, V
    Crowe, KM
    Degener, T
    Djaoshvili, N
    von Dombrowski, S
    Doser, M
    Dunnweber, W
    Ehmanns, A
    Engelhardt, D
    Faessler, MA
    Giarritta, P
    Haddock, RP
    Heinsius, FH
    Heinzelmann, M
    Herbstrith, A
    Herz, M
    Hessey, NP
    Hidas, P
    Hodd, C
    Holtzhaussen, C
    Huttmann, K
    Jamnik, D
    Kalinowsky, H
    Kammle, B
    Kammel, P
    Kisiel, J
    Klempt, E
    Koch, H
    Kolo, C
    Kunze, M
    Kurilla, U
    Lakata, M
    Landua, R
    Matthay, H
    McCrady, R
    [J]. PHYSICS LETTERS B, 1998, 423 (1-2) : 175 - 184
  • [3] Confirmation of the 1-+ meson exotics in the ηπ0 system
    Adams, G. S.
    Adams, T.
    Bar-Yam, Z.
    Bishop, J. M.
    Bodyagin, V. A.
    Brown, D. S.
    Cason, N. M.
    Chung, S. U.
    Cummings, J. P.
    Demianov, A. I.
    Danyo, K.
    Dowd, J. P.
    Eugenio, P.
    Fan, X. L.
    Gribushin, A. M.
    Hackenburg, R. W.
    Hayek, M.
    Hu, J.
    Ivanov, E. I.
    Joffe, D.
    Kern, W.
    King, E.
    Kodolova, O. L.
    Korotkikh, V. L.
    Kostin, M. A.
    Kuhn, J.
    LoSecco, J. M.
    Lu, M.
    Malinina, L. V.
    Manak, J. J.
    Nozar, M.
    Olchanski, C.
    Ostrovidov, A. I.
    Pedlar, T. K.
    Sarycheva, L. I.
    Seth, K. K.
    Shenhav, N.
    Shen, X.
    Shephard, W. D.
    Sinev, N. B.
    Stienike, D. L.
    Suh, J. S.
    Taegar, S. A.
    Tomaradze, A.
    Vardanyan, I. N.
    Weygand, D. P.
    White, D. B.
    Willutzki, H. J.
    Witkowski, M.
    Yershov, A. A.
    [J]. PHYSICS LETTERS B, 2007, 657 (1-3) : 27 - 31
  • [4] Review of particle physics
    Amsler, C.
    Doser, M.
    Antonelli, M.
    Asner, D. M.
    Babu, K. S.
    Baer, H.
    Band, H. R.
    Barnett, R. M.
    Bergren, E.
    Beringer, J.
    Bernardi, G.
    Bertl, W.
    Bichsel, H.
    Biebel, O.
    Bloch, P.
    Blucher, E.
    Blusk, S.
    Cahn, R. N.
    Carena, M.
    Caso, C.
    Cecccci, A.
    Chakraborty, D.
    Chen, M. -C.
    Chivukula, R. S.
    Cowan, G.
    Dahl, O.
    D'Ambrosio, G.
    Damour, T.
    de Gouvea, A.
    DeGrand, T.
    Dobrescu, B.
    Drees, M.
    Edwards, D. A.
    Eidelman, S.
    Elvira, V. D.
    Erler, J.
    Ezhela, V. V.
    Feng, J. L.
    Fetscher, W.
    Fields, B. D.
    Foster, B.
    Gaisser, T. K.
    Garren, L.
    Gerber, H. -J.
    Gerbier, G.
    Gherghetta, T.
    Giudice, G. F.
    Goodman, M.
    Grab, C.
    Gritsan, A. V.
    [J]. PHYSICS LETTERS B, 2008, 667 (1-5) : 1 - +
  • [5] Study of K(K)over-bar resonances in (p)over-barp → K+K-π0 at 900 and 1640 MeV/c
    Amsler, C.
    Baker, C. A.
    Barnette, B. M.
    Batty, C. J.
    Benayoun, M.
    Bluem, P.
    Braune, K.
    Bugg, D. V.
    Crede, V.
    Crowe, K. M.
    Doser, M.
    Duennweber, W.
    Engelhardt, D.
    Faessler, M. A.
    Haddock, R. P.
    Heinsius, F. H.
    Hessey, N. P.
    Hidas, P.
    Jamnik, D.
    Kalinowsky, H.
    Kammel, P.
    Kisiel, J.
    Klempt, E.
    Koch, H.
    Kortner, O.
    Kunze, M.
    Kurilla, U.
    Landua, R.
    Matthaey, H.
    Meyer, C. A.
    Meyer-Wildhagen, E.
    Ouared, R.
    Peters, K.
    Pick, B.
    Ratajczak, M.
    Regenfus, C.
    Roethel, W.
    Seth, K.
    Strohbusch, U.
    Suffert, M.
    Thoma, U.
    Uman, I.
    Wallis-Plachner, S.
    Walther, D.
    Wiedner, U.
    Zou, B. S.
    Zupancic, C.
    [J]. PHYSICS LETTERS B, 2006, 639 (3-4) : 165 - 171
  • [6] A study of the eta eta channel produced in central pp interactions at 450 GeV/c
    Barberis, D
    Binon, FG
    Close, FE
    Danielsen, KM
    Donskov, SV
    Earl, BC
    Evans, D
    French, BR
    Hino, T
    Inaba, S
    Jacholkowski, A
    Jacobsen, T
    Khaustov, GV
    Kinson, JB
    Kirk, A
    Kondashov, AA
    Lednev, AA
    Lenti, V
    Minashvili, I
    Peigneux, JP
    Romanovsky, V
    Russakovich, N
    Semenov, A
    Shagin, PM
    Shimizu, H
    Singovsky, AV
    Sobol, A
    Stassinaki, M
    Stroot, JP
    Takamatsu, K
    Tsuru, T
    Baillie, OV
    Votruba, MF
    Yasu, Y
    [J]. PHYSICS LETTERS B, 2000, 479 (1-3) : 59 - 66
  • [7] *COMPASS COLL, 2007, CERNSPSC2007037
  • [8] Study of the ηπ0 spectrum and search for a JPC=1-+ exotic meson -: art. no. 094015
    Dzierba, AR
    Gunter, J
    Ichiriu, S
    Lindenbusch, R
    Scott, E
    Smith, P
    Shepherd, MR
    Teige, S
    Swat, M
    Szczepaniak, AP
    Denisov, SP
    Popov, AV
    Ryabchikov, DI
    Sarycheva, LI
    Napolitano, J
    [J]. PHYSICAL REVIEW D, 2003, 67 (09)
  • [9] Evidence for exotic meson production in the reaction pi(-)p->eta pi(-)p at 18 GeV/c
    Thompson, DR
    Adams, GS
    Adams, T
    BarYam, Z
    Bishop, JM
    Bodyagin, VA
    Brown, DS
    Cason, NM
    Chung, SU
    Cummings, JP
    Denisov, SP
    Dorofeev, VA
    Dowd, JP
    Eugenio, P
    Hackenburg, RW
    Hayek, M
    Ivanov, EI
    Kachaev, IA
    Kern, W
    King, E
    Kodolova, OL
    Korotkikh, VL
    Kostin, MA
    Kuhn, J
    Lipaev, VV
    LoSecco, JM
    Manak, JJ
    Napolitano, J
    Nozar, M
    Olchanski, C
    Ostrovidov, AI
    Pedlar, TK
    Popov, AV
    Ryabchikov, DI
    Sanjari, AH
    Sarycheva, LI
    Seth, KK
    Shephard, WD
    Sinev, NB
    Smith, JA
    Stienike, DL
    Strassburger, C
    Taegar, SA
    Vardanyan, IN
    Weygand, DP
    White, DB
    Willutzki, HJ
    Wise, J
    Witkowski, M
    Yershov, AA
    [J]. PHYSICAL REVIEW LETTERS, 1997, 79 (09) : 1630 - 1633
  • [10] Light quark resonances in (p)over-barp annihilations at 5.2 GeV/c
    Uman, I
    Joffe, D
    Metreveli, Z
    Seth, KK
    Tomaradze, A
    Zweber, P
    [J]. PHYSICAL REVIEW D, 2006, 73 (05):
12