Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions

C. Adolph; R. Akhunzyanov; M. G. Alexeev; G. D. Alexeev; A. Amoroso; V. Andrieux; V. Anosov; A. Austregesilo; B. Badełek; F. Balestra; J. Barth; G. Baum; R. Beck; Y. Bedfer; A. Berlin; J. Bernhard; K. Bicker; J. Bieling; R. Birsa; J. Bisplinghoff; M. Bodlak; M. Boer; P. Bordalo; F. Bradamante; C. Braun; A. Bressan; M. Büchele; E. Burtin; L. Capozza; M. Chiosso; S. U. Chung; A. Cicuttin; M. L. Crespo; Q. Curiel; S. Dalla Torre; S. S. Dasgupta; S. Dasgupta; O. Yu Denisov; S. V. Donskov; N. Doshita; V. Duic; W. Dünnweber; M. Dziewiecki; A. Efremov; C. Elia; P. D. Eversheim; W. Eyrich; M. Faessler; A. Ferrero; A. Filin; M. Finger; M. Finger; H. Fischer; C. Franco; N. du Fresne von Hohenesche; J. M. Friedrich; V. Frolov; F. Gautheron; O. P. Gavrichtchouk; S. Gerassimov; R. Geyer; I. Gnesi; B. Gobbo; S. Goertz; M. Gorzellik; S. Grabmüller; A. Grasso; B. Grube; T. Grussenmeyer; A. Guskov; T. Guthörl; F. Haas; D. von Harrach; D. Hahne; R. Hashimoto; F. H. Heinsius; F. Herrmann; F. Hinterberger; Ch Höppner; N. Horikawa; N. d'Hose; S. Huber; S. Ishimoto; A. Ivanov; Yu Ivanshin; T. Iwata; R. Jahn; V. Jary; P. Jasinski; P. Joerg; R. Joosten; E. Kabuß; B. Ketzer; G. V. Khaustov; Yu A. Khokhlov; Yu Kisselev; F. Klein; K. Klimaszewski; J. H. Koivuniemi; V. N. Kolosov; K. Kondo; K. Königsmann; I. Konorov; V. F. Konstantinov; A. M. Kotzinian; O. Kouznetsov; M. Krämer; Z. V. Kroumchtein; N. Kuchinski; F. Kunne; K. Kurek; R. P. Kurjata; A. A. Lednev; A. Lehmann; M. Levillain; S. Levorato; J. Lichtenstadt; A. Maggiora; A. Magnon; N. Makke; G. K. Mallot; C. Marchand; A. Martin; J. Marzec; J. Matousek; H. Matsuda; T. Matsuda; G. Meshcheryakov; W. Meyer; T. Michigami; Yu V. Mikhailov; Y. Miyachi; A. Nagaytsev; T. Nagel; F. Nerling; S. Neubert; D. Neyret; V. I. Nikolaenko; J. Novy; W. D. Nowak; A. S. Nunes; A. G. Olshevsky; I. Orlov; M. Ostrick; R. Panknin; D. Panzieri; B. Parsamyan; S. Paul; S. Platchkov; J. Pochodzalla; V. A. Polyakov; J. Pretz; M. Quaresma; C. Quintans; S. Ramos; C. Regali; G. Reicherz; E. Rocco; N. S. Rossiyskaya; D. I. Ryabchikov; A. Rychter; V. D. Samoylenko; A. Sandacz; M. Sapozhnikov; S. Sarkar; I. A. Savin; G. Sbrizzai; P. Schiavon; C. Schill; T. Schlüter; K. Schmidt; H. Schmieden; K. Schönning; S. Schopferer; M. Schott; O. Yu Shevchenko; L. Silva; L. Sinha; S. Sirtl; M. Slunecka; S. Sosio; F. Sozzi; A. Srnka; L. Steiger; M. Stolarski; M. Sulc; R. Sulej; H. Suzuki; A. Szableski; T. Szameitat; P. Sznajder; S. Takekawa; J. ter Wolbeek; S. Tessaro; F. Tessarotto; F. Thibaud; S. Uhl; I. Uman; M. Virius; L. Wang; T. Weisrock; M. Wilfert; R. Windmolders; H. Wollny; K. Zaremba; M. Zavertyaev; E. Zemlyanichkina; M. Ziembicki; A. Zink

doi:10.1016/j.nuclphysb.2014.07.020

Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions

C. Adolph, R. Akhunzyanov, M. G. Alexeev, G. D. Alexeev, A. Amoroso, V. Andrieux, V. Anosov, A. Austregesilo, B. Badełek, F. Balestra, J. Barth, G. Baum, R. Beck, Y. Bedfer, A. Berlin, J. Bernhard, K. Bicker, J. Bieling, R. Birsa, J. BisplinghoffM. Bodlak, M. Boer, P. Bordalo, F. Bradamante, C. Braun, A. Bressan, M. Büchele, E. Burtin, L. Capozza, M. Chiosso, S. U. Chung, A. Cicuttin, M. L. Crespo, Q. Curiel, S. Dalla Torre, S. S. Dasgupta, S. Dasgupta, O. Yu Denisov, S. V. Donskov, N. Doshita, V. Duic, W. Dünnweber, M. Dziewiecki, A. Efremov, C. Elia, P. D. Eversheim, W. Eyrich, M. Faessler, A. Ferrero, A. Filin, M. Finger, M. Finger, H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. M. Friedrich, V. Frolov, F. Gautheron, O. P. Gavrichtchouk, S. Gerassimov, R. Geyer, I. Gnesi, B. Gobbo, S. Goertz, M. Gorzellik, S. Grabmüller, A. Grasso, B. Grube, T. Grussenmeyer, A. Guskov, T. Guthörl, F. Haas, D. von Harrach, D. Hahne, R. Hashimoto, F. H. Heinsius, F. Herrmann, F. Hinterberger, Ch Höppner, N. Horikawa, N. d'Hose, S. Huber, S. Ishimoto, A. Ivanov, Yu Ivanshin, T. Iwata, R. Jahn, V. Jary, P. Jasinski, P. Joerg, R. Joosten, E. Kabuß, B. Ketzer, G. V. Khaustov, Yu A. Khokhlov, Yu Kisselev, F. Klein, K. Klimaszewski, J. H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V. F. Konstantinov, A. M. Kotzinian, O. Kouznetsov, M. Krämer, Z. V. Kroumchtein, N. Kuchinski, F. Kunne, K. Kurek, R. P. Kurjata, A. A. Lednev, A. Lehmann, M. Levillain, S. Levorato, J. Lichtenstadt, A. Maggiora, A. Magnon, N. Makke, G. K. Mallot, C. Marchand, A. Martin, J. Marzec, J. Matousek, H. Matsuda, T. Matsuda, G. Meshcheryakov, W. Meyer, T. Michigami, Yu V. Mikhailov, Y. Miyachi, A. Nagaytsev, T. Nagel, F. Nerling, S. Neubert, D. Neyret, V. I. Nikolaenko, J. Novy, W. D. Nowak, A. S. Nunes, A. G. Olshevsky, I. Orlov, M. Ostrick, R. Panknin, D. Panzieri, B. Parsamyan, S. Paul, S. Platchkov, J. Pochodzalla, V. A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, C. Regali, G. Reicherz, E. Rocco, N. S. Rossiyskaya, D. I. Ryabchikov, A. Rychter, V. D. Samoylenko, A. Sandacz, M. Sapozhnikov, S. Sarkar, I. A. Savin, G. Sbrizzai, P. Schiavon, C. Schill, T. Schlüter, K. Schmidt, H. Schmieden, K. Schönning, S. Schopferer, M. Schott, O. Yu Shevchenko, L. Silva, L. Sinha, S. Sirtl, M. Slunecka, S. Sosio, F. Sozzi, A. Srnka, L. Steiger, M. Stolarski, M. Sulc, R. Sulej, H. Suzuki, A. Szableski, T. Szameitat, P. Sznajder, S. Takekawa, J. ter Wolbeek, S. Tessaro, F. Tessarotto, F. Thibaud, S. Uhl, I. Uman, M. Virius, L. Wang, T. Weisrock, M. Wilfert, R. Windmolders, H. Wollny, K. Zaremba, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki, A. Zink

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

Exclusive production of the isoscalar vector mesons ω and φ is measured with a 190GeV/c proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable _xF of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on _xF and on the invariant mass _{M p V} of the system formed by fast proton _pfast and vector meson V is discussed in terms of diffractive production of _pfastV resonances in competition with central production. The measurement of the spin density matrix element _ρ00 of the vector mesons in different selected reference frames provides another handle to distinguish the contributions of these two major reaction types. Again, dependences of the alignment on _xF and on _{M p V} are found. Most of the observations can be traced back to the existence of several excited baryon states contributing to ω production which are absent in the case of the φ meson. Removing the low-mass _{M p V} resonant region, the OZI rule is found to be violated by a factor of eight, independently of _xF.

Lingua originale	Inglese
pagine (da-a)	1078-1101
Numero di pagine	24
Rivista	Nuclear Physics B
Volume	886
DOI	https://doi.org/10.1016/j.nuclphysb.2014.07.020
Stato di pubblicazione	Pubblicato - set 2014
Pubblicato esternamente	Sì

Accesso al documento

10.1016/j.nuclphysb.2014.07.020

Altri file e collegamenti

Link to publication in Scopus

Cita questo

Adolph, C., Akhunzyanov, R., Alexeev, M. G., Alexeev, G. D., Amoroso, A., Andrieux, V., Anosov, V., Austregesilo, A., Badełek, B., Balestra, F., Barth, J., Baum, G., Beck, R., Bedfer, Y., Berlin, A., Bernhard, J., Bicker, K., Bieling, J., Birsa, R., ... Zink, A. (2014). Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions. Nuclear Physics B, 886, 1078-1101. https://doi.org/10.1016/j.nuclphysb.2014.07.020

@article{221c32afa8c04057a1ed845657125e36,

title = "Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions",

abstract = "Exclusive production of the isoscalar vector mesons ω and φ is measured with a 190GeV/c proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable xF of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on xF and on the invariant mass M p V of the system formed by fast proton pfast and vector meson V is discussed in terms of diffractive production of pfastV resonances in competition with central production. The measurement of the spin density matrix element ρ00 of the vector mesons in different selected reference frames provides another handle to distinguish the contributions of these two major reaction types. Again, dependences of the alignment on xF and on M p V are found. Most of the observations can be traced back to the existence of several excited baryon states contributing to ω production which are absent in the case of the φ meson. Removing the low-mass M p V resonant region, the OZI rule is found to be violated by a factor of eight, independently of xF.",

author = "C. Adolph and R. Akhunzyanov and Alexeev, {M. G.} and Alexeev, {G. D.} and A. Amoroso and V. Andrieux and V. Anosov and A. Austregesilo and B. Bade{\l}ek and F. Balestra and J. Barth and G. Baum and R. Beck and Y. Bedfer and A. Berlin and J. Bernhard and K. Bicker and J. Bieling and R. Birsa and J. Bisplinghoff and M. Bodlak and M. Boer and P. Bordalo and F. Bradamante and C. Braun and A. Bressan and M. B{\"u}chele and E. Burtin and L. Capozza and M. Chiosso and Chung, {S. U.} and A. Cicuttin and Crespo, {M. L.} and Q. Curiel and {Dalla Torre}, S. and Dasgupta, {S. S.} and S. Dasgupta and Denisov, {O. Yu} and Donskov, {S. V.} and N. Doshita and V. Duic and W. D{\"u}nnweber and M. Dziewiecki and A. Efremov and C. Elia and Eversheim, {P. D.} and W. Eyrich and M. Faessler and A. Ferrero and A. Filin and M. Finger and M. Finger and H. Fischer and C. Franco and {du Fresne von Hohenesche}, N. and Friedrich, {J. M.} and V. Frolov and F. Gautheron and Gavrichtchouk, {O. P.} and S. Gerassimov and R. Geyer and I. Gnesi and B. Gobbo and S. Goertz and M. Gorzellik and S. Grabm{\"u}ller and A. Grasso and B. Grube and T. Grussenmeyer and A. Guskov and T. Guth{\"o}rl and F. Haas and {von Harrach}, D. and D. Hahne and R. Hashimoto and Heinsius, {F. H.} and F. Herrmann and F. Hinterberger and Ch H{\"o}ppner and N. Horikawa and N. d'Hose and S. Huber and S. Ishimoto and A. Ivanov and Yu Ivanshin and T. Iwata and R. Jahn and V. Jary and P. Jasinski and P. Joerg and R. Joosten and E. Kabu{\ss} and B. Ketzer and Khaustov, {G. V.} and Khokhlov, {Yu A.} and Yu Kisselev and F. Klein and K. Klimaszewski and Koivuniemi, {J. H.} and Kolosov, {V. N.} and K. Kondo and K. K{\"o}nigsmann and I. Konorov and Konstantinov, {V. F.} and Kotzinian, {A. M.} and O. Kouznetsov and M. Kr{\"a}mer and Kroumchtein, {Z. V.} and N. Kuchinski and F. Kunne and K. Kurek and Kurjata, {R. P.} and Lednev, {A. A.} and A. Lehmann and M. Levillain and S. Levorato and J. Lichtenstadt and A. Maggiora and A. Magnon and N. Makke and Mallot, {G. K.} and C. Marchand and A. Martin and J. Marzec and J. Matousek and H. Matsuda and T. Matsuda and G. Meshcheryakov and W. Meyer and T. Michigami and Mikhailov, {Yu V.} and Y. Miyachi and A. Nagaytsev and T. Nagel and F. Nerling and S. Neubert and D. Neyret and Nikolaenko, {V. I.} and J. Novy and Nowak, {W. D.} and Nunes, {A. S.} and Olshevsky, {A. G.} and I. Orlov and M. Ostrick and R. Panknin and D. Panzieri and B. Parsamyan and S. Paul and S. Platchkov and J. Pochodzalla and Polyakov, {V. A.} and J. Pretz and M. Quaresma and C. Quintans and S. Ramos and C. Regali and G. Reicherz and E. Rocco and Rossiyskaya, {N. S.} and Ryabchikov, {D. I.} and A. Rychter and Samoylenko, {V. D.} and A. Sandacz and M. Sapozhnikov and S. Sarkar and Savin, {I. A.} and G. Sbrizzai and P. Schiavon and C. Schill and T. Schl{\"u}ter and K. Schmidt and H. Schmieden and K. Sch{\"o}nning and S. Schopferer and M. Schott and Shevchenko, {O. Yu} and L. Silva and L. Sinha and S. Sirtl and M. Slunecka and S. Sosio and F. Sozzi and A. Srnka and L. Steiger and M. Stolarski and M. Sulc and R. Sulej and H. Suzuki and A. Szableski and T. Szameitat and P. Sznajder and S. Takekawa and {ter Wolbeek}, J. and S. Tessaro and F. Tessarotto and F. Thibaud and S. Uhl and I. Uman and M. Virius and L. Wang and T. Weisrock and M. Wilfert and R. Windmolders and H. Wollny and K. Zaremba and M. Zavertyaev and E. Zemlyanichkina and M. Ziembicki and A. Zink",

year = "2014",

month = sep,

doi = "10.1016/j.nuclphysb.2014.07.020",

language = "English",

volume = "886",

pages = "1078--1101",

journal = "Nuclear Physics B",

issn = "0550-3213",

publisher = "Elsevier",

}

Adolph, C, Akhunzyanov, R, Alexeev, MG, Alexeev, GD, Amoroso, A, Andrieux, V, Anosov, V, Austregesilo, A, Badełek, B, Balestra, F, Barth, J, Baum, G, Beck, R, Bedfer, Y, Berlin, A, Bernhard, J, Bicker, K, Bieling, J, Birsa, R, Bisplinghoff, J, Bodlak, M, Boer, M, Bordalo, P, Bradamante, F, Braun, C, Bressan, A, Büchele, M, Burtin, E, Capozza, L, Chiosso, M, Chung, SU, Cicuttin, A, Crespo, ML, Curiel, Q, Dalla Torre, S, Dasgupta, SS, Dasgupta, S, Denisov, OY, Donskov, SV, Doshita, N, Duic, V, Dünnweber, W, Dziewiecki, M, Efremov, A, Elia, C, Eversheim, PD, Eyrich, W, Faessler, M, Ferrero, A, Filin, A, Finger, M, Finger, M, Fischer, H, Franco, C, du Fresne von Hohenesche, N, Friedrich, JM, Frolov, V, Gautheron, F, Gavrichtchouk, OP, Gerassimov, S, Geyer, R, Gnesi, I, Gobbo, B, Goertz, S, Gorzellik, M, Grabmüller, S, Grasso, A, Grube, B, Grussenmeyer, T, Guskov, A, Guthörl, T, Haas, F, von Harrach, D, Hahne, D, Hashimoto, R, Heinsius, FH, Herrmann, F, Hinterberger, F, Höppner, C, Horikawa, N, d'Hose, N, Huber, S, Ishimoto, S, Ivanov, A, Ivanshin, Y, Iwata, T, Jahn, R, Jary, V, Jasinski, P, Joerg, P, Joosten, R, Kabuß, E, Ketzer, B, Khaustov, GV, Khokhlov, YA, Kisselev, Y, Klein, F, Klimaszewski, K, Koivuniemi, JH, Kolosov, VN, Kondo, K, Königsmann, K, Konorov, I, Konstantinov, VF, Kotzinian, AM, Kouznetsov, O, Krämer, M, Kroumchtein, ZV, Kuchinski, N, Kunne, F, Kurek, K, Kurjata, RP, Lednev, AA, Lehmann, A, Levillain, M, Levorato, S, Lichtenstadt, J, Maggiora, A, Magnon, A, Makke, N, Mallot, GK, Marchand, C, Martin, A, Marzec, J, Matousek, J, Matsuda, H, Matsuda, T, Meshcheryakov, G, Meyer, W, Michigami, T, Mikhailov, YV, Miyachi, Y, Nagaytsev, A, Nagel, T, Nerling, F, Neubert, S, Neyret, D, Nikolaenko, VI, Novy, J, Nowak, WD, Nunes, AS, Olshevsky, AG, Orlov, I, Ostrick, M, Panknin, R, Panzieri, D, Parsamyan, B, Paul, S, Platchkov, S, Pochodzalla, J, Polyakov, VA, Pretz, J, Quaresma, M, Quintans, C, Ramos, S, Regali, C, Reicherz, G, Rocco, E, Rossiyskaya, NS, Ryabchikov, DI, Rychter, A, Samoylenko, VD, Sandacz, A, Sapozhnikov, M, Sarkar, S, Savin, IA, Sbrizzai, G, Schiavon, P, Schill, C, Schlüter, T, Schmidt, K, Schmieden, H, Schönning, K, Schopferer, S, Schott, M, Shevchenko, OY, Silva, L, Sinha, L, Sirtl, S, Slunecka, M, Sosio, S, Sozzi, F, Srnka, A, Steiger, L, Stolarski, M, Sulc, M, Sulej, R, Suzuki, H, Szableski, A, Szameitat, T, Sznajder, P, Takekawa, S, ter Wolbeek, J, Tessaro, S, Tessarotto, F, Thibaud, F, Uhl, S, Uman, I, Virius, M, Wang, L, Weisrock, T, Wilfert, M, Windmolders, R, Wollny, H, Zaremba, K, Zavertyaev, M, Zemlyanichkina, E, Ziembicki, M & Zink, A 2014, 'Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions', Nuclear Physics B, vol. 886, pagg. 1078-1101. https://doi.org/10.1016/j.nuclphysb.2014.07.020

TY - JOUR

T1 - Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions

AU - Adolph, C.

AU - Akhunzyanov, R.

AU - Alexeev, M. G.

AU - Alexeev, G. D.

AU - Amoroso, A.

AU - Andrieux, V.

AU - Anosov, V.

AU - Austregesilo, A.

AU - Badełek, B.

AU - Balestra, F.

AU - Barth, J.

AU - Baum, G.

AU - Beck, R.

AU - Bedfer, Y.

AU - Berlin, A.

AU - Bernhard, J.

AU - Bicker, K.

AU - Bieling, J.

AU - Birsa, R.

AU - Bisplinghoff, J.

AU - Bodlak, M.

AU - Boer, M.

AU - Bordalo, P.

AU - Bradamante, F.

AU - Braun, C.

AU - Bressan, A.

AU - Büchele, M.

AU - Burtin, E.

AU - Capozza, L.

AU - Chiosso, M.

AU - Chung, S. U.

AU - Cicuttin, A.

AU - Crespo, M. L.

AU - Curiel, Q.

AU - Dalla Torre, S.

AU - Dasgupta, S. S.

AU - Dasgupta, S.

AU - Denisov, O. Yu

AU - Donskov, S. V.

AU - Doshita, N.

AU - Duic, V.

AU - Dünnweber, W.

AU - Dziewiecki, M.

AU - Efremov, A.

AU - Elia, C.

AU - Eversheim, P. D.

AU - Eyrich, W.

AU - Faessler, M.

AU - Ferrero, A.

AU - Filin, A.

AU - Finger, M.

AU - Fischer, H.

AU - Franco, C.

AU - du Fresne von Hohenesche, N.

AU - Friedrich, J. M.

AU - Frolov, V.

AU - Gautheron, F.

AU - Gavrichtchouk, O. P.

AU - Gerassimov, S.

AU - Geyer, R.

AU - Gnesi, I.

AU - Gobbo, B.

AU - Goertz, S.

AU - Gorzellik, M.

AU - Grabmüller, S.

AU - Grasso, A.

AU - Grube, B.

AU - Grussenmeyer, T.

AU - Guskov, A.

AU - Guthörl, T.

AU - Haas, F.

AU - von Harrach, D.

AU - Hahne, D.

AU - Hashimoto, R.

AU - Heinsius, F. H.

AU - Herrmann, F.

AU - Hinterberger, F.

AU - Höppner, Ch

AU - Horikawa, N.

AU - d'Hose, N.

AU - Huber, S.

AU - Ishimoto, S.

AU - Ivanov, A.

AU - Ivanshin, Yu

AU - Iwata, T.

AU - Jahn, R.

AU - Jary, V.

AU - Jasinski, P.

AU - Joerg, P.

AU - Joosten, R.

AU - Kabuß, E.

AU - Ketzer, B.

AU - Khaustov, G. V.

AU - Khokhlov, Yu A.

AU - Kisselev, Yu

AU - Klein, F.

AU - Klimaszewski, K.

AU - Koivuniemi, J. H.

AU - Kolosov, V. N.

AU - Kondo, K.

AU - Königsmann, K.

AU - Konorov, I.

AU - Konstantinov, V. F.

AU - Kotzinian, A. M.

AU - Kouznetsov, O.

AU - Krämer, M.

AU - Kroumchtein, Z. V.

AU - Kuchinski, N.

AU - Kunne, F.

AU - Kurek, K.

AU - Kurjata, R. P.

AU - Lednev, A. A.

AU - Lehmann, A.

AU - Levillain, M.

AU - Levorato, S.

AU - Lichtenstadt, J.

AU - Maggiora, A.

AU - Magnon, A.

AU - Makke, N.

AU - Mallot, G. K.

AU - Marchand, C.

AU - Martin, A.

AU - Marzec, J.

AU - Matousek, J.

AU - Matsuda, H.

AU - Matsuda, T.

AU - Meshcheryakov, G.

AU - Meyer, W.

AU - Michigami, T.

AU - Mikhailov, Yu V.

AU - Miyachi, Y.

AU - Nagaytsev, A.

AU - Nagel, T.

AU - Nerling, F.

AU - Neubert, S.

AU - Neyret, D.

AU - Nikolaenko, V. I.

AU - Novy, J.

AU - Nowak, W. D.

AU - Nunes, A. S.

AU - Olshevsky, A. G.

AU - Orlov, I.

AU - Ostrick, M.

AU - Panknin, R.

AU - Panzieri, D.

AU - Parsamyan, B.

AU - Paul, S.

AU - Platchkov, S.

AU - Pochodzalla, J.

AU - Polyakov, V. A.

AU - Pretz, J.

AU - Quaresma, M.

AU - Quintans, C.

AU - Ramos, S.

AU - Regali, C.

AU - Reicherz, G.

AU - Rocco, E.

AU - Rossiyskaya, N. S.

AU - Ryabchikov, D. I.

AU - Rychter, A.

AU - Samoylenko, V. D.

AU - Sandacz, A.

AU - Sapozhnikov, M.

AU - Sarkar, S.

AU - Savin, I. A.

AU - Sbrizzai, G.

AU - Schiavon, P.

AU - Schill, C.

AU - Schlüter, T.

AU - Schmidt, K.

AU - Schmieden, H.

AU - Schönning, K.

AU - Schopferer, S.

AU - Schott, M.

AU - Shevchenko, O. Yu

AU - Silva, L.

AU - Sinha, L.

AU - Sirtl, S.

AU - Slunecka, M.

AU - Sosio, S.

AU - Sozzi, F.

AU - Srnka, A.

AU - Steiger, L.

AU - Stolarski, M.

AU - Sulc, M.

AU - Sulej, R.

AU - Suzuki, H.

AU - Szableski, A.

AU - Szameitat, T.

AU - Sznajder, P.

AU - Takekawa, S.

AU - ter Wolbeek, J.

AU - Tessaro, S.

AU - Tessarotto, F.

AU - Thibaud, F.

AU - Uhl, S.

AU - Uman, I.

AU - Virius, M.

AU - Wang, L.

AU - Weisrock, T.

AU - Wilfert, M.

AU - Windmolders, R.

AU - Wollny, H.

AU - Zaremba, K.

AU - Zavertyaev, M.

AU - Zemlyanichkina, E.

AU - Ziembicki, M.

AU - Zink, A.

PY - 2014/9

Y1 - 2014/9

N2 - Exclusive production of the isoscalar vector mesons ω and φ is measured with a 190GeV/c proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable xF of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on xF and on the invariant mass M p V of the system formed by fast proton pfast and vector meson V is discussed in terms of diffractive production of pfastV resonances in competition with central production. The measurement of the spin density matrix element ρ00 of the vector mesons in different selected reference frames provides another handle to distinguish the contributions of these two major reaction types. Again, dependences of the alignment on xF and on M p V are found. Most of the observations can be traced back to the existence of several excited baryon states contributing to ω production which are absent in the case of the φ meson. Removing the low-mass M p V resonant region, the OZI rule is found to be violated by a factor of eight, independently of xF.

AB - Exclusive production of the isoscalar vector mesons ω and φ is measured with a 190GeV/c proton beam impinging on a liquid hydrogen target. Cross section ratios are determined in three intervals of the Feynman variable xF of the fast proton. A significant violation of the OZI rule is found, confirming earlier findings. Its kinematic dependence on xF and on the invariant mass M p V of the system formed by fast proton pfast and vector meson V is discussed in terms of diffractive production of pfastV resonances in competition with central production. The measurement of the spin density matrix element ρ00 of the vector mesons in different selected reference frames provides another handle to distinguish the contributions of these two major reaction types. Again, dependences of the alignment on xF and on M p V are found. Most of the observations can be traced back to the existence of several excited baryon states contributing to ω production which are absent in the case of the φ meson. Removing the low-mass M p V resonant region, the OZI rule is found to be violated by a factor of eight, independently of xF.

UR - http://www.scopus.com/inward/record.url?scp=84905912455&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysb.2014.07.020

DO - 10.1016/j.nuclphysb.2014.07.020

M3 - Article

SN - 0550-3213

VL - 886

SP - 1078

EP - 1101

JO - Nuclear Physics B

JF - Nuclear Physics B

ER -

Spin alignment and violation of the OZI rule in exclusive ω and φ production in pp collisions

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