arXiv : Resonance Production and $\pi\pi$ S-wave in $\pi^- + p \rightarrow \pi^- \pi^- \pi^+ + p_{recoil}$ at 190 GeV/c

Adolph, C; Eyrich, W; Anosov, V; Khokhlov, Yu A; Meshcheryakov, G; Meyer, W; Kondo, K; Schönning, K; Nunes, A S; Magnon, A; Guskov, A; Matoušek, J; Haas, F; Lednev, A A; Kroumchtein, Z V; Faessler, M; Montuenga, P; Frolov, V; Ziembicki, M; Michigami, T; Beck, R; Olshevsky, A G; Rossiyskaya, N S; Klimaszewski, K; Huber, S; Ferrero, A; Konstantinov, V F; Cicuttin, A; Mikhailov, Yu V; Sirtl, S; Finger, M., Jr.; Szabelski, A; Ivanov, A; Hinterberger, F; Austregesilo, A; Parsamyan, B; d'Hose, N; Zink, A; Sinha, L; Dziewiecki, M; Uhl, S; Riedl, C; Bedfer, Y; Makke, N; Horikawa, N; Bisplinghoff, J; Thibaud, F; Tosello, F; Bressan, A; Khaustov, G V; Stolarski, M; Takekawa, S; Bernhard, J; Ketzer, B; Nikolaenko, V I; Büchele, M; Pretz, J; Matsuda, T; Schmidt, K; Sznajder, P; Nový, J; Paul, S; Krinner, F; Srnka, A; Sarkar, S; Dalla Torre, S; Matsuda, H; Bielert, E R; Balestra, F; Zavertyaev, M; Krämer, M; Bicker, K; Kurek, K; Hahne, D; Wilfert, M; Ostrick, M; Gerassimov, S; Hsieh, C-Y; Kabuß, E; Pochodzalla, J; Weisrock, T; Braun, C; Ryabchikov, D I; Grasso, A; Franco, C; Konorov, I; von Harrach, D; Fischer, H; Panzieri, D; Schlüter, T; Selyunin, A; Ivanshin, Yu; Curiel, Q; Zemlyanichkina, E; Giordano, F; Azevedo, C D R; Nowak, W-D; Dhara, L; Koivuniemi, J H; Marchand, C; Doshita, N; Sozzi, F; Nukazuka, G; du Fresne von Hohenesche, N; Boer, M; Joosten, R; Barth, J; Maggiora, A; Dasgupta, S S; Sandacz, A; Regali, C; Sulc, M; Suzuki, H; Denisov, O Yu; Schiavon, P; Augustyniak, W; Bordalo, P; Grosse Perdekamp, M; Kurjata, R P; Martin, A; Reicherz, G; Alexeev, G D; Grussenmeyer, T; Nerling, F; Kisselev, Yu; ter Wolbeek, J; Ishimoto, S; Marzec, J; Fuchey, E; Miyachi, Y; Kouznetsov, O; Kuchinski, N; Badełek, B; Jahn, R; Gautheron, F; Kolosov, V N; Lehmann, A; Levillain, M; Levorato, S; Peshekhonov, D V; Donskov, S V; Rychter, A; Crespo, M L; Tessarotto, F; Friedrich, J M; Dasgupta, S; Königsmann, K; Gnesi, I; Akhunzyanov, R; Polyakov, V A; Santos, C; Andrieux, V; Longo, R; Lichtenstadt, J; Shevchenko, O Yu; Szameitat, T; Klein, F; Samoylenko, V D; Tessaro, S; Bodlak, M; Orlov, I; Chang, W-C; Hashimoto, R; Slunecka, M; Burtin, E; Silva, L; Grube, B; Jörg, P; Gavrichtchouk, O P; Mallot, G K; Kunne, F; Schopferer, S; Chung, S U; Neyret, D; Savin, I A; Chiosso, M; Eversheim, P D; Alexeev, M G; Gorzellik, M; Peng, J-C; Ramos, S; Dünnweber, W; Bradamante, F; Zaremba, K; Marianski, B; Choi, I; Birsa, R; Quaresma, M; Makins, N; Pereira, F; Quintans, C; Pešek, M; Finger, M; Virius, M; Iwata, T; Jary, V; Kotzinian, A M; Schmieden, H; Veloso, J; Duic, V; Herrmann, F; Amoroso, A; Tskhay, V; Kremser, P; Platchkov, S; Heinsius, F H; Grabmüller, S; Nagaytsev, A; Sbrizzai, G; Efremov, A

doi:10.1103/PhysRevD.95.032004

Article
Report number	arXiv:1509.00992 ; CERN-PH-EP-2015-233
Title	Resonance Production and $\pi\pi$ S-wave in $\pi^- + p \rightarrow \pi^- \pi^- \pi^+ + p_{recoil}$ at 190 GeV/c
Author(s)	Adolph, C (Erlangen - Nuremberg U.) ; Akhunzyanov, R (Dubna, JINR) ; Alexeev, M G (U. Turin, Exp. Phys.) ; Alexeev, G D (Dubna, JINR) ; Amoroso, A (U. Turin, Exp. Phys. ; INFN, Turin) ; Andrieux, V (IRFU, SPhN, Saclay) ; Anosov, V (Dubna, JINR) ; Augustyniak, W (Warsaw, Inst. Nucl. Studies) ; Austregesilo, A (Munich, Tech. U.) ; Azevedo, C D R (Aveiro U.) ; Badełek, B (Warsaw U.) ; Balestra, F (U. Turin, Exp. Phys. ; INFN, Turin) ; Barth, J (Bonn U.) ; Beck, R (Bonn U., HISKP) ; Bedfer, Y (IRFU, SPhN, Saclay ; CERN) ; Bernhard, J (Mainz U., Inst. Kernphys. ; CERN) ; Bicker, K (Munich, Tech. U. ; CERN) ; Bielert, E R (CERN) ; Birsa, R (INFN, Trieste) ; Bisplinghoff, J (Bonn U., HISKP) ; Bodlak, M (Charles U.) ; Boer, M (IRFU, SPhN, Saclay) ; Bordalo, P (LIP, Lisbon ; IST, Lisbon (main)) ; Bradamante, F (Trieste U. ; INFN, Trieste) ; Braun, C (Erlangen - Nuremberg U.) ; Bressan, A (Trieste U. ; INFN, Trieste) ; Büchele, M (Freiburg U.) ; Burtin, E (IRFU, SPhN, Saclay) ; Chang, W-C (Taiwan, Inst. Phys.) ; Chiosso, M (U. Turin, Exp. Phys. ; INFN, Turin) ; Choi, I (Illinois U., Urbana) ; Chung, S U (Munich, Tech. U. ; Pusan Natl. U. ; Brookhaven) ; Cicuttin, A (ICTP, Trieste ; INFN, Trieste) ; Crespo, M L (ICTP, Trieste ; INFN, Trieste) ; Curiel, Q (IRFU, SPhN, Saclay) ; Dalla Torre, S (INFN, Trieste) ; Dasgupta, S S (Matrivani Inst., Calcutta) ; Dasgupta, S (Trieste U. ; INFN, Trieste) ; Denisov, O Yu (INFN, Turin) ; Dhara, L (Matrivani Inst., Calcutta) ; Donskov, S V (Kurchatov Inst., Moscow) ; Doshita, N (Yamagata U.) ; Duic, V (Trieste U.) ; Dünnweber, W ; Dziewiecki, M (Warsaw U., Inst. Radioelect.) ; Efremov, A (Dubna, JINR) ; Eversheim, P D (Bonn U., HISKP) ; Eyrich, W (Erlangen - Nuremberg U.) ; Faessler, M ; Ferrero, A (IRFU, SPhN, Saclay) ; Finger, M (Charles U.) ; Finger, M., Jr. (Charles U.) ; Fischer, H (Freiburg U.) ; Franco, C (LIP, Lisbon) ; du Fresne von Hohenesche, N (Mainz U., Inst. Kernphys.) ; Friedrich, J M (Munich, Tech. U.) ; Frolov, V (Dubna, JINR ; CERN) ; Fuchey, E (IRFU, SPhN, Saclay) ; Gautheron, F (Ruhr U., Bochum, Inst. Expt. Phys.) ; Gavrichtchouk, O P (Dubna, JINR) ; Gerassimov, S (LPI, Moscow (main) ; Munich, Tech. U.) ; Giordano, F (Illinois U., Urbana) ; Gnesi, I (U. Turin, Exp. Phys. ; INFN, Turin) ; Gorzellik, M (Freiburg U.) ; Grabmüller, S (Munich, Tech. U.) ; Grasso, A (U. Turin, Exp. Phys. ; INFN, Turin) ; Grosse Perdekamp, M (Illinois U., Urbana) ; Grube, B (Munich, Tech. U.) ; Grussenmeyer, T (Freiburg U.) ; Guskov, A (Dubna, JINR) ; Haas, F (Munich, Tech. U.) ; Hahne, D (Bonn U.) ; von Harrach, D (Mainz U., Inst. Kernphys.) ; Hashimoto, R (Yamagata U.) ; Heinsius, F H (Freiburg U.) ; Herrmann, F (Freiburg U.) ; Hinterberger, F (Bonn U., HISKP) ; Horikawa, N (Nagoya U. (main) ; Chubu U.) ; d'Hose, N (IRFU, SPhN, Saclay) ; Hsieh, C-Y (Taiwan, Inst. Phys.) ; Huber, S (Munich, Tech. U.) ; Ishimoto, S (Yamagata U. ; KEK, Tsukuba) ; Ivanov, A (Dubna, JINR) ; Ivanshin, Yu (Dubna, JINR) ; Iwata, T (Yamagata U.) ; Jahn, R (Bonn U., HISKP) ; Jary, V (CTU, Prague) ; Joosten, R (Bonn U., HISKP) ; Jörg, P (Freiburg U.) ; Kabuß, E (Mainz U., Inst. Kernphys.) ; Ketzer, B (Munich, Tech. U.) ; Khaustov, G V (Kurchatov Inst., Moscow) ; Khokhlov, Yu A (Kurchatov Inst., Moscow ; Moscow, MIPT) ; Kisselev, Yu (Dubna, JINR) ; Klein, F (Bonn U.) ; Klimaszewski, K (Warsaw, Inst. Nucl. Studies) ; Koivuniemi, J H (Ruhr U., Bochum, Inst. Expt. Phys.) ; Kolosov, V N (Kurchatov Inst., Moscow) ; Kondo, K (Yamagata U.) ; Königsmann, K (Freiburg U.) ; Konorov, I (LPI, Moscow (main) ; Munich, Tech. U.) ; Konstantinov, V F (Kurchatov Inst., Moscow) ; Kotzinian, A M (U. Turin, Exp. Phys. ; INFN, Turin) ; Kouznetsov, O (Dubna, JINR) ; Krämer, M (Munich, Tech. U.) ; Kremser, P (Freiburg U.) ; Krinner, F (Munich, Tech. U.) ; Kroumchtein, Z V (Dubna, JINR) ; Kuchinski, N (Dubna, JINR) ; Kunne, F (IRFU, SPhN, Saclay) ; Kurek, K (Warsaw, Inst. Nucl. Studies) ; Kurjata, R P (Warsaw U., Inst. Radioelect.) ; Lednev, A A (Kurchatov Inst., Moscow) ; Lehmann, A (Erlangen - Nuremberg U.) ; Levillain, M (IRFU, SPhN, Saclay) ; Levorato, S (INFN, Trieste) ; Lichtenstadt, J (Tel Aviv U. (main)) ; Longo, R (U. Turin, Exp. Phys. ; INFN, Turin) ; Maggiora, A (INFN, Turin) ; Magnon, A (IRFU, SPhN, Saclay) ; Makins, N (Illinois U., Urbana) ; Makke, N (Trieste U. ; INFN, Trieste) ; Mallot, G K (CERN) ; Marchand, C (IRFU, SPhN, Saclay) ; Marianski, B (Warsaw, Inst. Nucl. Studies) ; Martin, A (Trieste U. ; INFN, Trieste) ; Marzec, J (Warsaw U., Inst. Radioelect.) ; Matoušek, J (Charles U.) ; Matsuda, H (Yamagata U.) ; Matsuda, T (Miyazaki U.) ; Meshcheryakov, G (Dubna, JINR) ; Meyer, W (Ruhr U., Bochum, Inst. Expt. Phys.) ; Michigami, T (Yamagata U.) ; Mikhailov, Yu V (Kurchatov Inst., Moscow) ; Miyachi, Y (Yamagata U.) ; Montuenga, P (Illinois U., Urbana) ; Nagaytsev, A (Dubna, JINR) ; Nerling, F (Mainz U., Inst. Kernphys.) ; Neyret, D (IRFU, SPhN, Saclay) ; Nikolaenko, V I (Kurchatov Inst., Moscow) ; Nový, J (CTU, Prague ; CERN) ; Nowak, W-D (Freiburg U.) ; Nukazuka, G (Yamagata U.) ; Nunes, A S (LIP, Lisbon) ; Olshevsky, A G (Dubna, JINR) ; Orlov, I (Dubna, JINR) ; Ostrick, M (Mainz U., Inst. Kernphys.) ; Panzieri, D (Piemonte Orientale U., Alessandria ; INFN, Turin) ; Parsamyan, B (U. Turin, Exp. Phys. ; INFN, Turin) ; Paul, S (Munich, Tech. U.) ; Peng, J-C (Illinois U., Urbana) ; Pereira, F (Aveiro U.) ; Pešek, M (Charles U.) ; Peshekhonov, D V (Dubna, JINR) ; Platchkov, S (IRFU, SPhN, Saclay) ; Pochodzalla, J (Mainz U., Inst. Kernphys.) ; Polyakov, V A (Kurchatov Inst., Moscow) ; Pretz, J (Bonn U.) ; Quaresma, M (LIP, Lisbon) ; Quintans, C (LIP, Lisbon) ; Ramos, S (LIP, Lisbon ; IST, Lisbon (main)) ; Regali, C (Freiburg U.) ; Reicherz, G (Ruhr U., Bochum, Inst. Expt. Phys.) ; Riedl, C (Illinois U., Urbana) ; Rossiyskaya, N S (Dubna, JINR) ; Ryabchikov, D I (Kurchatov Inst., Moscow) ; Rychter, A (Warsaw U., Inst. Radioelect.) ; Samoylenko, V D (Kurchatov Inst., Moscow) ; Sandacz, A (Warsaw, Inst. Nucl. Studies) ; Santos, C (INFN, Trieste) ; Sarkar, S (Matrivani Inst., Calcutta) ; Savin, I A (Dubna, JINR) ; Sbrizzai, G (Trieste U. ; INFN, Trieste) ; Schiavon, P (Trieste U. ; INFN, Trieste) ; Schlüter, T (Munich, Tech. U., Universe) ; Schmidt, K (Freiburg U.) ; Schmieden, H (Bonn U.) ; Schönning, K (CERN) ; Schopferer, S (Freiburg U.) ; Selyunin, A (Dubna, JINR) ; Shevchenko, O Yu (Dubna, JINR) ; Silva, L (LIP, Lisbon) ; Sinha, L (Matrivani Inst., Calcutta) ; Sirtl, S (Freiburg U.) ; Slunecka, M (Dubna, JINR) ; Sozzi, F (INFN, Trieste) ; Srnka, A (Inst. Sci. Instruments, Brno) ; Stolarski, M (LIP, Lisbon) ; Sulc, M (Liberec Tech. U.) ; Suzuki, H (Yamagata U. ; Chubu U.) ; Szabelski, A (Warsaw, Inst. Nucl. Studies) ; Szameitat, T (Freiburg U.) ; Sznajder, P (Warsaw, Inst. Nucl. Studies) ; Takekawa, S (U. Turin, Exp. Phys. ; INFN, Turin) ; Tessaro, S (INFN, Trieste) ; Tessarotto, F (INFN, Trieste) ; Thibaud, F (IRFU, SPhN, Saclay) ; Tosello, F (INFN, Turin) ; Tskhay, V (LPI, Moscow (main)) ; Uhl, S (Munich, Tech. U.) ; Veloso, J (Aveiro U.) ; Virius, M (CTU, Prague) ; Weisrock, T (Mainz U., Inst. Kernphys.) ; Wilfert, M (Mainz U., Inst. Kernphys.) ; ter Wolbeek, J (Freiburg U.) ; Zaremba, K (Warsaw U., Inst. Radioelect.) ; Zavertyaev, M (LPI, Moscow (main)) ; Zemlyanichkina, E (Dubna, JINR) ; Ziembicki, M (Warsaw U., Inst. Radioelect.) ; Zink, A (Erlangen - Nuremberg U.)
Publication	2017-02-16
Imprint	2015-09-03
Number of pages	59
Note	96 pages
In:	Phys. Rev. D 95 (2017) 032004
DOI	10.1103/PhysRevD.95.032004
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS ; COMPASS NA58
Free keywords	QCD ; spectroscopy ; experimental results ; magnetic spectrometer ; hadron spectroscopy ; meson ; light ; CERN Lab ; CERN SPS ; COMPASS ; hadroproduction ; meson resonance
Abstract	The COMPASS collaboration has collected the currently largest data set on diffractively produced $\pi^-\pi^-\pi^+$ final states using a negative pion beam of 190 GeV/c momentum impinging on a stationary proton target. This data set allows for a systematic partial-wave analysis in 100 bins of three-pion mass, $0.5 < m_{3\pi} < 2.5$ GeV/c$^2$ , and in 11 bins of the reduced four-momentum transfer squared, $0.1 < t < 1.0$ (GeV/c)$^2$ . This two-dimensional analysis offers sensitivity to genuine one-step resonance production, i.e. the production of a state followed by its decay, as well as to more complex dynamical effects in nonresonant $3\pi$ production. In this paper, we present detailed studies on selected $3\pi$ partial waves with $J^{PC} = 0^{-+}$, $1^{++}$, $2^{-+}$, $2^{++}$, and $4^{++}$. In these waves, we observe the well-known ground-state mesons as well as a new narrow axial-vector meson $a_1(1420)$ decaying into $f_0(980) \pi$. In addition, we present the results of a novel method to extract the amplitude of the $\pi^-\pi^+$ subsystem with $I^{G}J^{PC} = 0^+ 0^{++}$ in various partial waves from the $\pi^-\pi^-\pi^+$ data. Evidence is found for correlation of the $f_0(980)$ and $f_0(1500)$ appearing as intermediate $\pi^- \pi^+$ isobars in the decay of the known $\pi(1800)$ and $\pi_2(1880)$.
Copyright/License	publication: © 2017-2024 The Author(s) (License: CC-BY-3.0) preprint: © 2015-2024 CERN (License: CC-BY-4.0)

$Diffractive dissociation of a beam pion on a target proton into the three-pion final state. The figure shows the excitation of an intermediate resonance $X^-$ via Pomeron exchange and its subsequent decay into $3\pi$.$ $\colorPlot Simplified scheme of the diffractive trigger. The main components are the beam trigger, which selects beam particles, and the RPD, which triggers on slow charged particles leaving the target. The veto system (red) rejects uninteresting events and consists of three parts: The veto hodoscopes, the sandwich, and the beam veto.$