Search for muoproduction of X(3872) at COMPASS and indication of a new state <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mover accent="true"><mml:mrow><mml:mi>X</mml:mi></mml:mrow><mml:mrow><mml:mo>˜</mml:mo></mml:mrow></mml:mover><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>

Aghasyan, M.; Akhunzyanov, R.; Alexeev, M.; Alexeev, G. D.; Amoroso, A.; Andrieux, V.; Анфимов, Н.; Аносов, В.; Antoshkin, A.; Augsten, K.; Augustyniak, W.; Austregesilo, A.; Azevedo, C.D.R.; Badełek, B.; Balestra, F.; Ball, M.; Barth, J.; Beck, R.; Bedfer, Y.; Bernhard, J.; Bicker, K.; Bielert, E.R.; Birsa, R.; Bodlak, M.; Bordalo, P.; Bradamante, F.; Bressan, A.; Büchele, M.; Burtsev, V.E.; Chang, W. C.; Chatterjee, C.; Chiosso, M.; Choi, I. J.; Chumakov, A.G.; Chung, S. U.; Cicuttin, A.; Crespo, M.L.; Torre, S. Dalla; Dasgupta, S.; Денисов, О.; Dhara, L.; Donskov, S.V.; Doshita, N.; Dreisbach, Ch.; Dünnweber, W.; Dusaev, R. R.; Dziewiecki, M.; Efremov, A.; Eversheim, P.D.; Faessler, M.; Ferrero, A.; Finger, M.; Fischer, H.; Franco, C.; Hohenesche, N. du Fresne von; Friedrich, Jan; Frolov, V. V.; Fuchey, E.; Gautheron, F.; Gavrichtchouk, O.P.; Gerassimov, S.; Giarra, J.; Giordano, F.; Gnesi, I.; Gorzellik, M.; Grasso, A.; Gridin, A.; Perdekamp, M. Grosse; Grube, B.; Grussenmeyer, T.; Guskov, A.; Hahne, D.; Hamar, G.; Harrach, D. von; Heinsius, F. H.; Heitz, R.; Herrmann, F.; Horikawa, N.; d’Hose, N.; Hsieh, C.-Y.; Huber, S.; Ishimoto, S.; Иванов, А.; Ivanshin, Yu.; Iwata, Tadahisa; Jarý, V.; Joosten, R.; Jörg, P.; Kabuß, E.; Kerbizi, A.; Ketzer, B.; Khaustov, G.V.; Khokhlov, Yu.A.; Kisselev, Yu.; Klein, F.; Koivuniemi, J.H.; Kolosov, V.N.; Kondo, K.; Königsmann, K.; Konorov, I.; Константинов, В.Ф.; Kotzinian, A.M.; Kouznetsov, O.; Král, Zdeněk; Krämer, M.; Kremser, P.; Krinner, F.; Kroumchtein, Z.V.; Kulinich, Y. P.; Kunne, F.; Kurek, K.; Kurjata, R.; Kuznetsov, Ivan; Kveton, A.; Lednev, A.A.; Levchenko, E.A.; Levillain, M.; Levorato, S.; Lian, Y.-S.; Lichtenstadt, J.; Longo, Riccardo; Lyubovitskij, Valery E.; Maggiora, A.; Magnon, A.; Makins, N.; Makke, N.; Mallot, G.K.; Mamon, S.A.; Mariański, B.; Martin, A.; Marzec, J.; Matoušek, Jan; Matsuda, Hiroki; Matsuda, T.; Meshcheryakov, G.; Meyer, M.; Meyer, W. T.; Mikhailov, Yu.V.; Mikhasenko, M.; Mitrofanov, E.; Mitrofanov, N.; Miyachi, Y.; Nagaytsev, A.; Nerling, F.; Neyret, D.; Nový, J.; Nowak, W.-D.; Nukazuka, G.; Nunes, A. S.; Оlshevsky, А.G.; Орлов, И.; Ostrick, M.; Panzieri, D.; Parsamyan, B.; Paul, S.; Peng, J.-C.; Pereira, F.; Pešek, M.; Pešková, M.; Peshekhonov, D.V.; Pierre, N.; Platchkov, S.; Pochodzalla, J.; Polyakov, V.A.; Pretz, J.; Quaresma, M.; Quintans, C.; Ramos, S.; Regali, C.; Reicherz, G.; Riedl, C.; Rogacheva, N.S.; Ryabchikov, D.I.; Рыбников, А.; Rychter, A.; Salac, R.; Samoylenko, V.D.; Sandacz, A.; Santos, C.; Sarkar, S.; Savin, I.; Sawada, T.; Sbrizzai, G.; Schiavon, P.; Schmidt, K.; Schmieden, H.; Schönning, K.; Seder, E.; Selyunin, A.; Silva, L.; Sinha, L.; Sirtl, S.; Slunečka, M.; Smolík, J.; Srnka, A.; Steffen, D.; Stolarski, M.; Subrt, O.; Šulc, M.; Suzuki, Hiromasa; Szabelski, A.; Szameitat, T.; Sznajder, P.; Taševský, M.; Tessaro, S.; Tessarotto, F.; Thiel, A.; Tomsa, J.; Tosello, F.; Tskhay, V.; Uhl, S.; Vasilishin, B. I.; Vauth, A.; Veloso, J.F.C.A.; Vidon, A.; Virius, M.; Wallner, S.; Weisrock, T.; Wilfert, M.; Wolbeek, J. ter; Заремба, К.; Závada, P.; Zavertyaev, M.; Zemlyanichkina, E.; Zhuravlev, N.; Ziembicki, M.

doi:10.1016/j.physletb.2018.07.008

Cited by 32 publications

(26 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…b) It is likely a different state. It was reported by the COMPASS Collaboration in muoproduction [172]; however, the ππ invariant mass spectrum does not agree with that coming from a ρ, and a negative C-parity is preferred. c) Not seen in γγ → J/ψϕ and e + e − → γJ/ψϕ.…”

Section: Status Of Hidden-charm and Hidden-bottom Hadron Spectrummentioning

confidence: 84%

“…energy W γp = 13.7 GeV, which is in the EicC energy region, the COM-PASS Collaboration has searched for the Z c (3900), and the nonobservation sets an upper limit for the cross section: B(Z c (3900) ± → J/ψπ ± )σ(γN → Z c (3900) ± N ) < 52 pb at the 90% confidence level [227]. In a similar energy region, the COMPASS Collaboration has also obtained an upper limit for the χ c1 (3872) at the same confidence level: B(χ c1 (3872) → J/ψππ)σ(γN → χ c1 (3872)N ) < 2.9 pb [172]. A parametrization of these information with a reasonable formula is used as input to the eSTARlight generator [269] to obtain the production rates at EicC.…”

Section: Cross Section Estimates and Simulationsmentioning

confidence: 84%

“…A search for the photoproduction of Z c (3900) [227] and χ c1 (3872) [172] has been performed by COMPASS with muon beam, giving valuable input for the simulation of EicC. Within similar range of c.m.…”

Section: Exotic Hadrons At Eiccmentioning

confidence: 99%

“…For more model estimates of the exclusive productions of hidden-charm and bottom exotic hadrons, we refer to Refs. [172,204,205,.…”

Section: Cross Section Estimates and Simulationsmentioning

confidence: 99%

See 3 more Smart Citations

Electron-ion collider in China

et al. 2021

View full text Add to dashboard Cite

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed. It will be constructed based on an upgraded heavy-ion accelerator, High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under construction, together with a new electron ring. The proposed collider will provide highly polarized electrons (with a polarization of ∼80%) and protons (with a polarization of ∼70%) with variable center of mass energies from 15 to 20 GeV and the luminosity of (2–3) × 1033 cm−2 · s−1. Polarized deuterons and Helium-3, as well as unpolarized ion beams from Carbon to Uranium, will be also available at the EicC.The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region, including 3D tomography of nucleon; the partonic structure of nuclei and the parton interaction with the nuclear environment; the exotic states, especially those with heavy flavor quark contents. In addition, issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC. In order to achieve the above-mentioned physics goals, a hermetical detector system will be constructed with cutting-edge technologies.This document is the result of collective contributions and valuable inputs from experts across the globe. The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States. The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China.

show abstract

Section: Status Of Hidden-charm and Hidden-bottom Hadron Spectrummentioning

confidence: 84%

Section: Cross Section Estimates and Simulationsmentioning

confidence: 84%

Section: Exotic Hadrons At Eiccmentioning

confidence: 99%

“…For more model estimates of the exclusive productions of hidden-charm and bottom exotic hadrons, we refer to Refs. [172,204,205,.…”

Section: Cross Section Estimates and Simulationsmentioning

confidence: 99%

See 2 more Smart Citations

Electron-ion collider in China

et al. 2021

View full text Add to dashboard Cite

show abstract

“…So far the only charmonium-like structure that has been observed in lepto-production is a negative Cparity structure with a mass of about 3.86 GeV (COMPASS Collaboration [250]), which nevertheless shows the feasibility of studying XY Z states in lepto-/photo-production processes. Its quantum numbers are consistent with J PC = 1 +− and it could be closely related to h c (2P), and positive C-parity states around that mass.…”

Section: Complementarity Between Eicc and Other Experimentsmentioning

confidence: 99%

Selected Science Opportunities for the EicC

et al. 2020

View full text Add to dashboard Cite

An electron ion collider has been proposed in China (EicC). It is anticipated that the facility would provide polarised electrons, protons and ion beams, in collisions with large centre-of-mass energy. This discussion highlights its potential to address issues that are central to understanding the emergence of mass within the Standard Model, using examples that range from the exploration of light-meson structure, through measurements of near-threshold heavy-quarkonia production, and on to studies of the spectrum of exotic hadrons. Contents

show abstract