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New analysis of ηπ tensor resonances measured at the COMPASS experiment

(2018) PHYSICS LETTERS B. 779. p.464-472
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Abstract
We present a new amplitude analysis of the eta pi D-wave in the reaction pi(-) p -> eta pi(-) p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a(2)(1320) and the excited a(2)(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a(2) we find M = (1307 +/- 1 6) MeV and Gamma=(112 +/- 1 +/- 8) MeV, and for the excited state a(2)' we obtain M = (1720 +/- 10 +/- 60) MeV and Gamma = (280 +/- 10 +/- 70) MeV, respectively.
Keywords
AMPLITUDE ANALYSIS, PP INTERACTIONS, 450 GEV/C, MESONS, POMERON, CONNECTION, UNITARITY, EXCHANGE, PHYSICS, MATRIX

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Chicago
Jackura, A, C Fernández-Ramírez, M Mikhasenko, A Pilloni, V Mathieu, Jannes Nys, V Pauk, et al. 2018. “New Analysis of Ηπ Tensor Resonances Measured at the COMPASS Experiment.” Physics Letters B 779: 464–472.
APA
Jackura, A., Fernández-Ramírez, C., Mikhasenko, M., Pilloni, A., Mathieu, V., Nys, J., Pauk, V., et al. (2018). New analysis of ηπ tensor resonances measured at the COMPASS experiment. PHYSICS LETTERS B, 779, 464–472.
Vancouver
1.
Jackura A, Fernández-Ramírez C, Mikhasenko M, Pilloni A, Mathieu V, Nys J, et al. New analysis of ηπ tensor resonances measured at the COMPASS experiment. PHYSICS LETTERS B. 2018;779:464–72.
MLA
Jackura, A, C Fernández-Ramírez, M Mikhasenko, et al. “New Analysis of Ηπ Tensor Resonances Measured at the COMPASS Experiment.” PHYSICS LETTERS B 779 (2018): 464–472. Print.
@article{8552383,
  abstract     = {We present a new amplitude analysis of the eta pi D-wave in the reaction pi(-) p -{\textrangle} eta pi(-) p measured by COMPASS. Employing an analytical model based on the principles of the relativistic S-matrix, we find two resonances that can be identified with the a(2)(1320) and the excited a(2)(1700), and perform a comprehensive analysis of their pole positions. For the mass and width of the a(2) we find M = (1307 +/- 1 6) MeV and Gamma=(112 +/- 1 +/- 8) MeV, and for the excited state a(2)' we obtain M = (1720 +/- 10 +/- 60) MeV and Gamma = (280 +/- 10 +/- 70) MeV, respectively.},
  author       = {Jackura, A and Fern{\'a}ndez-Ram{\'i}rez, C and Mikhasenko, M and Pilloni, A and Mathieu, V and Nys, Jannes and Pauk, V and Szczepaniak, AP and Fox, G and Aghasyan, M and Akhunzyanov, R and Alexeev, MG and Alexeev, GD and Amoroso, A and Andrieux, V and Anfimov, NV and Anosov, V and Antoshkin, A and Augsten, K and Augustyniak, W and Austregesilo, A and Azevedo, CDR and Bade\unmatched{0142}ek, B and Balestra, F and Ball, M and Barth, J and Beck, R and Bedfer, Y and Bernhard, J and Bicker, K and Bielert, ER and Birsa, R and Bodlak, M and Bordalo, P and Bradamante, F and Bressan, A and B{\"u}chele, M and Burtsev, VE and Chang, W-C and Chatterjee, C and Chiosso, M and Choi, I and Chumakov, AG and Chung, S-U and Cicuttin, A and Crespo, ML and Dalla Torre, S and Dasgupta, SS and Dasgupta, S and Denisov, OYu and Dhara, L and Donskov, SV and Doshita, N and Dreisbach, Ch and D{\"u}nnweber, W and Dusaev, RR and Dziewiecki, M and Efremov, A and Eversheim, PD and Faessler, M and Ferrero, A and Finger, M and Finger, M and Fischer, H and Franco, C and du Fresne von Hohenesche, N and Friedrich, JM and Frolov, V and Fuchey, E and Gautheron, F and Gavrichtchouk, OP and Gerassimov, S and Giarra, J and Giordano, F and Gnesi, I and Gorzellik, M and Grasso, A and Grosse Perdekamp, M and Grube, B and Grussenmeyer, T and Guskov, A and Hahne, D and Hamar, G and von Harrach, D and Heinsius, FH and Heitz, R and Herrmann, F and Horikawa, N and d'Hose, N and Hsieh, C-Y and Huber, S and Ishimoto, S and Ivanov, A and Ivanshin, Yu and Iwata, T and Jary, V and Joosten, R and J{\"o}rg, P and Kabu{\ss}, E and Kerbizi, A and Ketzer, B and Khaustov, GV and Khokhlov, YuA and Kisselev, Yu and Klein, F and Koivuniemi, JH and Kolosov, VN and Kondo, K and K{\"o}nigsmann, K and Konorov, I and Konstantinov, VF and Kotzinian, AM and Kouznetsov, OM and Kral, Z and Kr{\"a}mer, M and Kremser, P and Krinner, F and Kroumchtein, ZV and Kulinich, Y and Kunne, F and Kurek, K and Kurjata, RP and Kuznetsov, II and Kveton, A and Lednev, AA and Levchenko, EA and Levillain, M and Levorato, S and Lian, Y-S and Lichtenstadt, J and Longo, R and Lyubovitskij, VE and Maggiora, A and Magnon, A and Makins, N and Makke, N and Mallot, GK and Mamon, SA and Marianski, B and Martin, A and Marzec, J and Matou\v{s}ek, J and Matsuda, H and Matsuda, T and Meshcheryakov, GV and Meyer, M and Meyer, W and Mikhailov, YuV and Mikhasenko, M and Mitrofanov, E and Mitrofanov, N and Miyachi, Y and Nagaytsev, A and Nerling, F and Neyret, D and Nov{\'y}, J and Nowak, W-D and Nukazuka, G and Nunes, AS and Olshevsky, AG and Orlov, I and Ostrick, M and Panzieri, D and Parsamyan, B and Paul, S and Peng, J-C and Pereira, F and Pe\v{s}ek, M and Pe\v{s}kov{\'a}, M and Peshekhonov, DV and Pierre, N and Platchkov, S and Pochodzalla, J and Polyakov, VA and Pretz, J and Quaresma, M and Quintans, C and Ramos, S and Regali, C and Reicherz, G and Riedl, C and Rogacheva, NS and Ryabchikov, DI and Rybnikov, A and Rychter, A and Salac, R and Samoylenko, VD and Sandacz, A and Santos, C and Sarkar, S and Savin, IA and Sawada, T and Sbrizzai, G and Schiavon, P and Schl{\"u}ter, T and Schmidt, K and Schmieden, H and Sch{\"o}nning, K and Seder, E and Selyunin, A and Silva, L and Sinha, L and Sirtl, S and Slunecka, M and Smolik, J and Srnka, A and Steffen, D and Stolarski, M and Subrt, O and Sulc, M and Suzuki, H and Szabelski, A and Szameitat, T and Sznajder, P and Tasevsky, M and Tessaro, S and Tessarotto, F and Thiel, A and Tomsa, J and Tosello, F and Tskhay, V and Uhl, S and Vasilishin, BI and Vauth, A and Veloso, J and Vidon, A and Virius, M and Wallner, S and Weisrock, T and Wilfert, M and ter Wolbeek, J and Zaremba, K and Zavada, P and Zavertyaev, M and Zemlyanichkina, E and Zhuravlev, N and Ziembicki, M},
  issn         = {0370-2693},
  journal      = {PHYSICS LETTERS B},
  keyword      = {AMPLITUDE ANALYSIS,PP INTERACTIONS,450 GEV/C,MESONS,POMERON,CONNECTION,UNITARITY,EXCHANGE,PHYSICS,MATRIX},
  language     = {eng},
  pages        = {464--472},
  title        = {New analysis of \ensuremath{\eta}\ensuremath{\pi} tensor resonances measured at the COMPASS experiment},
  url          = {http://dx.doi.org/10.1016/j.physletb.2018.01.017},
  volume       = {779},
  year         = {2018},
}

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