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by Bai, JZ and Ban, Y and Bian, JG and Cai, X and Chang, JF and Chen, HF and Chen, HS and Chen, HX and Chen, J and Chen, JC and Chen, YB and Chi, SP and Chu, YP and Cui, XZ and Dai, HL and Dai, YS and Dai, YM and Dong, LY and Du, SX and Du, ZZ and Fang, J and Fang, SS and Fu, CD and Fu, HY and Fu, LP and Gao, CS and Gao, ML and Gao, YN and Gong, MY and Gong, WX and Gu, SD and Guo, YN and Guo, YQ and Guo, ZJ and Han, SW and Harris, FA and He, J and He, KL and He, M and He, X and Heng, YK and Hu, HM and Hu, T and Huang, GS and Huang, L and Huang, XP and Ji, XB and Jia, QY and Jiang, CH and Jiang, XS and Jin, DP and Jin, S and Jin, Y and Ke, ZJ and Lai, YF and Li, F and Li, G and Lie, HH and Li, J and Li, JC and Li, K and Li, QJ and Li, RB and Li, RY and Li, W and Li, WG and Li, XQ and Li, XS and Liang, YF and Liao, HB and Liu, CX and Liu, F and Liu, HM and Liu, JB and Liu, JP and Liu, RG and Liu, Y and Liu, ZA and Liu, ZX and Lu, GR and Lu, F and Lu, HJ and Lu, JG and Luo, CL and Luo, XL and Ma, EC and Ma, FC and Ma, JM and Ma, LL and Ma, XY and Mao, ZP and Meng, XC and Mo, XH and Nie, J and Nie, ZD and Olsen, SL and Peng, HP and Qi, ND and Qian, CD and Qiu, JF and ... and BES Collaboration
PHYSICS LETTERS B, ISSN 0370-2693, 01/2004, Volume 578, Issue 1-2, pp. 16 - 22
In a sample of 58 million J/psi events collected with the BES II detector, the process J/psi --> gammaeta(c) is observed in five decay channels: eta(c) -->... 
RADIATIVE DECAY | PHYSICS, MULTIDISCIPLINARY | MESON | MASS | STATE | WIDTH | ETA-C
Journal Article
by Aaij, Roel and Adeva, Bernardo and Adinolfi, Marco and Ajaltouni, Ziad and Akar, Simon and Albrecht, Johannes and Alessio, Federico and Alexander, Michael and Ali, Suvayu and Alkhazov, Georgy and Alvarez Cartelle, Paula and Alves Jr., Antonio Augusto and Amato, Sandra and Amerio, Silvia and Amhis, Yasmine and An, Liupan and Anderlini, Lucio and Andreassi, Guido and Andreotti, Mirco and Andrews, Jason and Appleby, Robert and Archilli, Flavio and d'Argent, Philippe and Arnau Romeu, Joan and Artamonov, Alexander and Artuso, Marina and Aslanides, Elie and Auriemma, Giulio and Baalouch, Marouen and Babuschkin, Igor and Bachmann, Sebastian and Back, John and Badalov, Alexey and Baesso, Clarissa and Baker, Sophie and Balagura, Vladislav and Baldini, Wander and Barlow, Roger and Barschel, Colin and Barsuk, Sergey and Barter, William and Baryshnikov, Fedor and Baszczyk, Mateusz and Batozskaya, Varvara and Batsukh, Baasansuren and Battista, Vincenzo and Bay, Aurelio and Beaucourt, Leo and Beddow, John and Bedeschi, Franco and Bediaga, Ignacio and Bel, Lennaert and Bellee, Violaine and Belloli, Nicoletta and Belous, Konstantin and Belyaev, Ivan and Ben-Haim, Eli and Bencivenni, Giovanni and Benson, Sean and Berezhnoy, Alexander and Bernet, Roland and Bertolin, Alessandro and Betancourt, Christopher and Betti, Federico and Bettler, Marc-Olivier and van Beuzekom, Martinus and Bezshyiko, Iaroslava and Bifani, Simone and Billoir, Pierre and Bird, Thomas and Birnkraut, Alex and Bitadze, Alexander and Bizzeti, Andrea and Blake, Thomas and Blanc, Frederic and Blouw, Johan and Blusk, Steven and Bocci, Valerio and Boettcher, Thomas and Bondar, Alexander and Bondar, Nikolay and Bonivento, Walter and Bordyuzhin, Igor and Borgheresi, Alessio and Borghi, Silvia and Borisyak, Maxim and Borsato, Martino and Bossu, Francesco and Boubdir, Meriem and Bowcock, Themistocles and Bowen, Espen Eie and Bozzi, Concezio and Braun, Svende and Britsch, Markward and Britton, Thomas and Brodzicka, Jolanta and Buchanan, Emma and Burr, Christopher and Bursche, Albert and Buytaert, Jan and ...
ISSN 1029-8479, 2017
Journal Article
ISSN 1029-8479, 01/2015
Journal Article
05/2018
Phys. Rev. D 98, 072001 (2018) We report the measurement of gamma gamma to eta_c(1S), eta_c(2S) to eta' pi+ pi- with eta' decays to gamma rho and eta pi+ pi-... 
Physics - High Energy Physics - Experiment
Journal Article
Physical Review D, ISSN 1550-7998, 03/2013, Volume 87, Issue 5
We search for the M1 radiative transition psi(3686) -> gamma eta(c)(2S) by reconstructing the exclusive eta(c)(2S) -> (KSK +/-)-K-0 pi(-/+)pi(+)pi(-) decay... 
ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS
Journal Article
by Ablikim, M and Bai, JZ and Ban, Y and Bian, JG and Cai, X and Chang, JF and Chen, HF and Chen, HS and Chen, HX and Chen, JC and Chen, J and Chen, ML and Chen, YB and Chi, SP and Chu, YP and Cui, XZ and Dai, HL and Dai, YS and Deng, ZY and Dong, LY and Dong, QF and Du, SX and Du, ZZ and Fang, J and Fang, SS and Fu, CD and Fu, HY and Gao, CS and Gao, YN and Gong, MY and Gong, WX and Gu, SD and Guo, YN and Guo, YQ and Guo, ZJ and Harris, FA and He, KL and He, M and He, X and Heng, YK and Hu, HM and Hu, T and Huang, GS and Huang, XP and Huang, XT and Ji, XB and Jiang, CH and Jiang, XS and Jin, DP and Jin, S and Jin, Y and Lai, YF and Li, F and Li, G and Li, HH and Li, J and Li, JC and Li, QJ and Li, RY and Li, SM and Li, WD and Li, WG and Li, XL and Li, XQ and Li, YL and Liang, YF and Liao, HB and Liu, CX and Liu, F and Liu, HH and Liu, HM and Liu, J and Liu, JB and Liu, JP and Liu, RG and Liu, ZA and Liu, ZX and Lu, F and Lu, GR and Lu, HJ and Lu, JG and Luo, CL and Luo, LX and Luo, XL and Ma, FC and Ma, HL and Ma, JM and Ma, LL and Ma, QM and Ma, XB and Ma, XY and Mao, ZP and Mo, XH and Nie, J and Nie, ZD and Olsen, SL and Peng, HP and Qi, ND and Qian, CD and Qin, H and ... and BES Collaborat
PHYSICS LETTERS B, ISSN 0370-2693, 02/2006, Volume 633, Issue 1, pp. 19 - 24
The decays of eta(c) to K(+)K(-)2(pi(+)pi(-)) and 3(pi(+)pi(-)) are observed for the first time using a sample of 5.8 x 10(7) J/psi events collected by the... 
PHYSICS, NUCLEAR | ETA-C | HADRONIC DECAYS | ASTRONOMY & ASTROPHYSICS | MASS | PHYSICS, PARTICLES & FIELDS
Journal Article
02/2010
Phys.Rev.D82:034025,2010 We show that in the transitions psi' -> h_c \pi^0 and eta_c' -> chi_{c0} pi^0 the contributions from charmed meson loops are highly... 
Journal Article
03/2019
Phys. Rev. D 100, 012001 (2019) A search for the decays $B^+ \rightarrow h_c K^+$ and $B^0 \rightarrow h_c K_S^0$ is performed. Evidence for the decay $B^+... 
Physics - High Energy Physics - Experiment
Journal Article
by Zhang, ZQ and Fang, SS and Wei, DH and Zhu, YC and Lu, GR
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, ISSN 0254-3052, 06/2004, Volume 28, Issue 6, pp. 569 - 575
An introduction for eta(c) physics research is presented in this paper, which shows that the mechanism of eta(c) decays can't be. well described by current... 
ETA(C) | ANNIHILATIONS | RADIATIVE DECAY | CANDIDATE STATE | HADRONIC DECAYS | CP violation | 2-PHOTON | SEARCH | J/PSI | WIDTH | BES III detector | branching fraction | MASS | eta(c) decays | PHYSICS, PARTICLES & FIELDS
Journal Article
The European Physical Journal C, ISSN 1434-6044, 12/2018, Volume 78, Issue 12, pp. 1 - 11
The phenomenology of leptonic decays of quarkonia holds many interesting features: for instance, it can establish constraints on scenarios beyond the Standard... 
Nuclear Physics, Heavy Ions, Hadrons | Measurement Science and Instrumentation | Nuclear Energy | Quantum Field Theories, String Theory | Physics | Elementary Particles, Quantum Field Theory | Astronomy, Astrophysics and Cosmology
Journal Article
Physical Review D, ISSN 0556-2821, 2003, Volume 67, Issue 11
We study instanton contributions to hadronic decays of the scalar glueball, the pseudoscalar charmonium state eta(c), and the scalar charmonium state chi(c).... 
WAVE-FUNCTIONS | HEAVY QUARKS | ANOMALIES | ANNIHILATION | BEHAVIOR | ASTRONOMY & ASTROPHYSICS | ETA-C | PERTURBATIVE QCD VACUUM | SU VACUUM | LATTICE | DEEP-INELASTIC SCATTERING | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Phenomenology
Journal Article
NUCLEAR PHYSICS B, ISSN 0550-3213, 02/1991, Volume 350, Issue 1-2, pp. 1 - 24
The eta-c has been observed in hadronic decay modes from the 8.6 x 10(6) J/psi's collected by the DM2 experiment at DCI. The eta-c-mass is set to (2974.4 +/-... 
RADIATIVE DECAY | STATES | 1ST OBSERVATION | DETECTOR | J/PSI | PHYSICS, NUCLEAR | ETA-C | Physics | High Energy Physics - Experiment
Journal Article
by Ma, JP
NUCLEAR PHYSICS A, ISSN 0375-9474, 11/2003, Volume 727, Issue 3-4, pp. 333 - 352
Diffractive photoproduction of eta(c) is an important process to study the effect of Odderon, whose existence is still not confirmed in experiment. A detailed... 
EXCLUSIVE DECAY | HERA experiment | PARTON DISTRIBUTIONS | MESON PRODUCTION | diffractive photoproduction of eta(c) | PHYSICS, NUCLEAR | SHORT-DISTANCE ANALYSIS | HEAVY-QUARK SYSTEMS | HADRONIC TRANSITIONS | 2 PIONS | QUANTUM CHROMODYNAMICS | soft gluon | EFFECTIVE FIELD-THEORY | HQET | PP ELASTIC-SCATTERING
Journal Article
Physical Review D, ISSN 0556-2821, 2001, Volume 63, Issue 9, p. 12
Journal Article
by Li, G and Zhu, YS and Zhang, DH and Liu, HM
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, ISSN 0254-3052, 07/2002, Volume 26, Issue 7, pp. 645 - 651
The construction of BEPC II/BES III is under plan. Both the accelerator and detector will have much better performance than BEPC I /BES II. Under certain... 
CHARMONIUM STATE | ANNIHILATION | charmonium P wave spin singlet P-1 | charmonium S wave spin singlet eta '(c) | PHYSICS, NUCLEAR | DECAYS | Monte Carlo simulation | HADRONIC TRANSITIONS | PHYSICS, PARTICLES & FIELDS
Journal Article
Physical Review D, ISSN 0556-2821, 1991, Volume 43, Issue 5, pp. 1465 - 1487
For unpolarized beams in e-e+ collisions at the Z0, beam-referenced spin-correlation functions for the production-decay sequence... 
BOSON | T-ODD | PARITY | TAU-LEPTON | ANNIHILATION | MASS | ODD CORRELATION | ETA-C->PHI-PHI | PHYSICS | SEMILEPTONIC DECAYS | PHYSICS, PARTICLES & FIELDS
Journal Article
European Physical Journal C, ISSN 1434-6044, 09/2017, Volume 77, Issue 9
Using decays to f-meson pairs, the inclusive production of charmonium states in b-hadron decays is studied with pp collision data corresponding to an... 
ETA(C)(2S) | BRANCHING FRACTIONS | TEV | DETECTOR | J/PSI | PSI(2S) | PP COLLISIONS | POLARIZATION | To be checked by Faculty | TOOL | PHYSICS, PARTICLES & FIELDS
Journal Article
The European Physical Journal C, ISSN 1434-6044, 1/2008, Volume 53, Issue 1, pp. 1 - 14
Journal Article
European Physical Journal C. Particles and Fields, ISSN 1434-6044, 2003, Volume 31, Issue 4, pp. 481 - 489
$\eta_{c}(2980)$ production in $\gamma\gamma$ interactions has been detected via its decays into $K^{0}_{s}K^{\pm}\pi^{\mp}$ ,K + K - K + K - and ${K^ +... 
Physics | ETA-C PRODUCTION | DECAY | CHARMONIUM STATES | PERFORMANCE | MESON | PARTIAL-WIDTH | PHYSICS, PARTICLES & FIELDS | Fysik | Subatomär fysik | Physical Sciences | Subatomic Physics | Naturvetenskap | Natural Sciences
Journal Article
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