000070277 001__ 70277
000070277 005__ 20160902142305.0
000070277 0247_ $$2DOI$$9Springer$$a10.1140/epja/i2016-16259-x
000070277 035__ $$9INSPIRETeX$$aAbraamyan:2016aab
000070277 100__ $$aAbraamyan, Kh.U.$$uDubna, JINR$$uCANDLE, Yerevan$$vVBLHEP JINR - 141980 - Dubna - Moscow region - Russia$$vInternational Center for Advanced Studies - YSU - 0025 - Yerevan - Armenia
000070277 245__ $$aDiphoton and dipion productions at the Nuclotron/NICA
000070277 260__ $$c2016-08-24$$tpublished
000070277 500__ $$a*Temporary record*
000070277 520__ $$9Springer$$aAlong with $ \pi^{0}$ and $ \eta$ mesons, a resonance structure in the invariant-mass spectrum of two photons at $ M_{\gamma\gamma} = 360 \pm 7 \pm 9$ MeV is observed in the reaction $ d C \rightarrow \gamma + \gamma +X$ at momentum 2.75GeV/c per nucleon. Estimates of its width and production cross section are $ \Gamma = 64 \pm 18$ MeV and $ \sigma_{\gamma\gamma} = 98 \pm 24^{+93-67}$ μb, respectively. The collected statistics amount to $ 2339 \pm 340$ events of $ 1.5\cdot 10^{6}$ triggered interactions of a total number $ \sim 10^{12}$ of $ d+C$ interactions. This resonance structure is not observed in the $ \gamma$ $ \gamma$ channel in $ \sim 10^{11} p+ C$ collisions at the beam momentum 5.5GeV/c . The result obtained in the reaction $ d+ C$ is confirmed by the second experiment carried out on the deuteron beam at momentum 3.83GeV/c per nucleon with a copper target: $ M = 382 \pm 13$ MeV, $ \Gamma = 62 \pm 37$ MeV and $ \sigma = 273 \pm 75$ μb. Some results on the observation of the resonance in the invariant-mass spectra of two $ \pi^{0}$ mesons are presented: the data obtained in the $ d+C\rightarrow \gamma+\gamma + X$ reaction is confirmed by the results for the $ d+C\rightarrow \pi^{0} +\pi^{0} + X$ and $ p+C\rightarrow \pi^{0} +\pi^{0} + X$ reactions, a preliminary estimate of the ratio $ Br(R\rightarrow\gamma\gamma)/Br (R\rightarrow\pi^{0}\pi^{0})$ is $ (1.8-3.7)\cdot 10^{-3}$ . Further studies of this resonance is assumed at the Nuclotron/NICA at higher setup acceptance, which will allow to elucidate the nature of this resonance by determination of the differential cross sections at different beam energies in the range 1-6GeV/n and the mechanism of its formation.
000070277 65017 $$2INSPIRE$$aTheory-Nucl
000070277 695__ $$2INSPIRE$$a* Automatic Keywords *
000070277 695__ $$2INSPIRE$$9bibclassify$$abeam: momentum
000070277 695__ $$2INSPIRE$$9bibclassify$$adeuteron: beam
000070277 695__ $$2INSPIRE$$9bibclassify$$abeam: energy
000070277 695__ $$2INSPIRE$$9bibclassify$$acopper: target
000070277 695__ $$2INSPIRE$$9bibclassify$$aDubna Nuclotron
000070277 695__ $$2INSPIRE$$9bibclassify$$astructure
000070277 695__ $$2INSPIRE$$9bibclassify$$anucleon
000070277 695__ $$2INSPIRE$$9bibclassify$$ameson
000070277 695__ $$2INSPIRE$$9bibclassify$$aNICA
000070277 695__ $$2INSPIRE$$9bibclassify$$adifferential cross section
000070277 695__ $$2INSPIRE$$9bibclassify$$astatistics
000070277 695__ $$2INSPIRE$$9bibclassify$$aacceptance
000070277 695__ $$2INSPIRE$$9bibclassify$$atwo-photon
000070277 695__ $$2INSPIRE$$9bibclassify$$aformation
000070277 700__ $$aAnisimov, A.B.$$uDubna, JINR$$vVBLHEP JINR - 141980 - Dubna - Moscow region - Russia
000070277 700__ $$aBaznat, M.I.$$uIAP, Chisinau$$vInstitute of Applied Physics - MD-2028 - Kishinev - Moldova
000070277 700__ $$aGudima, K.K.$$uIAP, Chisinau$$vInstitute of Applied Physics - MD-2028 - Kishinev - Moldova
000070277 700__ $$aKozhin, M.A.$$uDubna, JINR$$vVBLHEP JINR - 141980 - Dubna - Moscow region - Russia
000070277 700__ $$aKukulin, V.I.$$uSINP, Moscow$$uTubingen U.$$vInstitute of Nuclear Physics - Moscow State U. - 119992 - Moscow - Russia$$vInstitut für Theoretische Physik - Universität Tübingen - Auf der Morgenstelle 14 - D-72076 - Tübingen - Germany
000070277 700__ $$aNazarenko, M.A.$$uMoscow RAS, IRE$$vMoscow State Institute of Radioengineering - Electronics and Automation - 119454 - Moscow - Russia
000070277 700__ $$aReznikov, S.G.$$uDubna, JINR$$vVBLHEP JINR - 141980 - Dubna - Moscow region - Russia
000070277 700__ $$aSorin, A.S.$$uDubna, JINR$$uDubna, JINR$$vVBLHEP JINR - 141980 - Dubna - Moscow region - Russia$$vBLTP JINR - 141980 - Dubna - Moscow region - Russia
000070277 773__ $$c259$$n8$$pEur.Phys.J.$$vA52$$y2016
000070277 909CO $$ooai:inspirehep.net:1483223$$pINSPIRE:HEP
000070277 980__ $$aCORE
000070277 980__ $$aHEP
000070277 980__ $$aPublished
000070277 980__ $$aCiteable
000070277 999C5 $$9refextract$$hA. Codino, F. Plouin$$mProduction of light mesons and multipion systems in light nuclei interactions, LNS/Ph/94-06 preprint of MIT, Cambridge$$o1$$y1994
000070277 999C5 $$047408$$9refextract$$adoi:10.1103/PhysRevLett.5.258$$hA. Abashian N.E. Booth K.M. Crowe$$mA. Abashian, N.E. Booth, K.M. Crowe$$o2$$sPhys.Rev.Lett.,5,3258$$sPhys.Rev.Lett.,5,3258$$y1960
000070277 999C5 $$047418$$9refextract$$adoi:10.1103/PhysRevLett.7.35$$hN.E. Booth A. Abashian K.M. Crowe$$mhRvL...7...35B N.E. Booth, A. Abashian, K.M. Crowe$$o3$$sPhys.Rev.Lett.,7,35$$sPhys.Rev.Lett.,7,35$$y1961
000070277 999C5 $$048133$$9refextract$$adoi:10.1103/PhysRev.132.2309$$hN.E. Booth A. Abashian K.M. Crowe$$mhRv..132.2309B N.E. Booth, A. Abashian, K.M. Crowe$$o4$$sPhys.Rev.,132,2309$$sPhys.Rev.,132,2309$$y1963
000070277 999C5 $$094877$$9refextract$$adoi:10.1016/0550-3213(73)90317-9$$hJ.J. Banaigs J. Berger L. Goldzahl T. Risser L. Vu-Hai M. Cottereau C. Le Brun$$muPhB..67....1B J.J. Banaigs, J. Berger, L. Goldzahl, T. Risser, L. Vu-Hai, M. Cottereau, C. Le Brun$$o5$$sNucl.Phys.,B67,1$$sNucl.Phys.,B67,1$$y1973
000070277 999C5 $$9refextract$$adoi:10.1016/0031-9163(64)90220-3$$hR.J.R.J. Homer Q.H. Khan W.K. McFarlane J.S.C. McKee A.W. O’Dell L. Riddiford P.G. Williams D. Griffiths$$mhL.....9...72H R.J.R.J. Homer, Q.H. Khan, W.K. McFarlane, J.S.C. McKee, A.W. O’Dell, L. Riddiford, P.G. Williams, D. Griffiths$$o6$$sPhys.Lett.,9,72$$sPhys.Lett.,9,72$$y1964
000070277 999C5 $$9refextract$$adoi:10.1016/0031-9163(64)90220-3$$o6
000070277 999C5 $$056054$$9refextract$$adoi:10.1016/0550-3213(69)90076-5$$hJ.J.H. Hall T.A. Murray L. Riddiford$$muPhB..12..573H J.J.H. Hall, T.A. Murray, L. Riddiford$$o7$$sNucl.Phys.,B12,573$$sNucl.Phys.,B12,573$$y1969
000070277 999C5 $$084179$$9refextract$$adoi:10.1016/0550-3213(73)90062-X$$hI. Bar-Nir$$muPhB..54...17B I. Bar-Nir et al$$o8$$sNucl.Phys.,B54,17$$sNucl.Phys.,B54,17$$y1973
000070277 999C5 $$0101105$$9refextract$$adoi:10.1016/0550-3213(76)90060-2$$hJ. Banaigs J. Berger L. Goldzahl L. Vu Hai M. Cottereau C. Le Brun F.L. Fabbri P. Picozza$$muPhB.105...52B J. Banaigs, J. Berger, L. Goldzahl, L. Vu Hai, M. Cottereau, C. Le Brun, F.L. Fabbri, P. Picozza$$o9$$sNucl.Phys.,B105,52$$sNucl.Phys.,B105,52$$y1976
000070277 999C5 $$0478057$$9refextract$$adoi:10.1016/S0370-2693(98)01464-6$$hR. Wurzinger$$mhLB..445..423W R. Wurzinger et al$$o10$$sPhys.Lett.,B445,423$$sPhys.Lett.,B445,423$$y1999
000070277 999C5 $$0135597$$9refextract$$adoi:10.1016/0375-9474(78)90331-7$$hF. Plouin$$mF. Plouin et al$$o11$$sNucl.Phys.,B302,413$$sNucl.Phys.,B302,413$$y1983
000070277 999C5 $$9refextract$$hA. Abdivaliev C. Besliu F. Cotorobai A.P. Gasparian S. Gruia A.P. Ierusalimov D.K. Kopylova V.I. Moroz A.V. Nikitin Yu$$mA. Troyan A. Abdivaliev, C. Besliu, F. Cotorobai, A.P. Gasparian, S. Gruia, A.P. Ierusalimov, D.K. Kopylova, V.I. Moroz, A.V Nikitin, Yu.A. Troyan$$o12$$sSov.J.Nucl.Phys.,29,796$$sSov.J.Nucl.Phys.,29,796$$y1979
000070277 999C5 $$0145720$$9refextract$$adoi:10.1016/0550-3213(80)90133-9$$hA. Abdivaliev C. Besliu F. Cotorobai A.P. Gasparian S. Gruia A.P. Ierusalimov D.K. Kopylova V.I. Moroz A.V. Nikitin Yu$$mA. Troyan uPhB.168..385A A. Abdivaliev, C. Besliu, F. Cotorobai, A.P. Gasparian, S. Gruia, A.P. Ierusalimov, D.K. Kopylova, V.I. Moroz, A.V. Nikitin Yu.A. Troyan$$o13$$sNucl.Phys.,B168,385$$sNucl.Phys.,B168,385$$y1980
000070277 999C5 $$0303689$$9refextract$$adoi:10.1103/PhysRevLett.65.690$$hF. Plouin P. Fleury C. Wilkin$$mhRvL..65..690P F. Plouin, P. Fleury, C. Wilkin$$o14$$sPhys.Rev.Lett.,65,690$$sPhys.Rev.Lett.,65,690$$y1990
000070277 999C5 $$9refextract$$adoi:10.1103/PhysRevLett.9.217$$hB. Richter$$mhRvL...9..217R B. Richter$$o15$$sPhys.Rev.Lett.,9,217$$sPhys.Rev.Lett.,9,217$$y1962
000070277 999C5 $$9refextract$$adoi:10.1103/PhysRevLett.9.217$$o15
000070277 999C5 $$9refextract$$adoi:10.1103/PhysRevLett.12.674$$hR. Del Fabbro M. De Pretis R. Jones G. Marini A. Odian G. Stoppini L. Tau$$mhRvL..12..674D R. Del Fabbro, M. De Pretis, R. Jones, G. Marini, A. Odian, G. Stoppini, L. Tau$$o16$$sPhys.Rev.Lett.,12,674$$sPhys.Rev.Lett.,12,674$$y1964
000070277 999C5 $$9refextract$$adoi:10.1103/PhysRevLett.12.674$$o16
000070277 999C5 $$0631499$$9refextract$$adoi:10.1063/1.1799805$$hCollaboration M. Kotulla$$mTAPS Collaboration and A2 TAPS Collaboration and A2 Collaboration M. Kotulla$$o17$$sAIP Conf.Proc.,717,842$$sAIP Conf.Proc.,717,842$$y2004
000070277 999C5 $$0788475$$9refextract$$adoi:10.1103/PhysRevC.80.034001$$hAbraamyan et al.$$mKh.U. Abraamyan hRvC..80c4001A Kh.U$$o18$$sPhys.Rev.,C80,034001$$sPhys.Rev.,C80,034001$$y2009
000070277 999C5 $$0722347$$9refextract$$hAbraamyan, A.N. Sissakian, A.S.$$mKh.U Sorin, arXiv:$$o19$$rnucl-ex/0607027
000070277 999C5 $$9refextract$$hAbraamyan et al.$$mKh.U. AbraamyanDoklad. Acad. Nauk SSSR 431 468 Kh.U Doklad. Acad. Nauk SSSR 431, 468 (translated as Dokl. Phys. 55$$o20$$y2010
000070277 999C5 $$9refextract$$adoi:10.1134/S1063779610070257$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U$$o21$$sPhys.Part.Nucl.,41,1097$$sPhys.Part.Nucl.,41,1097$$y2010
000070277 999C5 $$9refextract$$adoi:10.1134/S1063779610070257$$o21
000070277 999C5 $$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U (translated as Phys. At. Nucl. 75$$o22$$sYad.Fiz.,75,707$$sYad.Fiz.,75,707$$y2012
000070277 999C5 $$9refextract$$hM.N. Khachaturian$$mJINR Communication E1-85-55, Dubna$$o23$$y1985
000070277 999C5 $$0146040$$9refextract$$adoi:10.1016/0029-554X(79)90117-4$$hR.G. Astvatsaurov$$mucIM.163..343A R.G. Astvatsaurov et al$$o24$$sNucl.Instrum.Meth.,163,343$$sNucl.Instrum.Meth.,163,343$$y1979
000070277 999C5 $$0432192$$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U$$o25$$sInstrum.Exp.Tech.,39,775$$sInstrum.Exp.Tech.,39,775$$y1996
000070277 999C5 $$9refextract$$adoi:10.1016/0010-4655(79)90042-0$$hV.T. Stane Ch$$mVankov oPhC..16..363S V.T. Stane Ch. Vankov$$o26$$sComput.Phys.Commun.,16,363$$sComput.Phys.Commun.,16,363$$y1979
000070277 999C5 $$9refextract$$adoi:10.1016/0010-4655(79)90042-0$$o26
000070277 999C5 $$0342328$$9refextract$$adoi:10.1016/0370-2693(94)90456-1$$hAbraamyan et al.$$mKh.U. Abraamyan hLB..323....1A Kh.U$$o27$$sPhys.Lett.,B323,1$$sPhys.Lett.,B323,1$$y1994
000070277 999C5 $$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U (translated as Phys. At. Nucl. 59$$o28$$sYad.Fiz.,59,271$$sYad.Fiz.,59,271$$y1996
000070277 999C5 $$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U (translated as Phys. At. Nucl. 60$$o29$$sYad.Fiz.,60,2014$$sYad.Fiz.,60,2014$$y1997
000070277 999C5 $$0656805$$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U (translated as Phys. At. Nucl. 68$$o30$$sYad.Fiz.,68,1020$$sYad.Fiz.,68,1020$$y2005
000070277 999C5 $$0253763$$9refextract$$hAbraamyan et al.$$mKh.U. Abraamyan Kh.U$$o31$$sInstrum.Exp.Tech.,32,58$$sInstrum.Exp.Tech.,32,58$$y1989
000070277 999C5 $$9refextract$$hN.S. Amelin K.K. Gudima V.D. Toneev$$mN.S. Amelin, K.K. Gudima, V.D Toneev$$o32$$sSov.J.Nucl.Phys.,51,1730$$sSov.J.Nucl.Phys.,51,1730$$y1990
000070277 999C5 $$0326577$$9refextract$$adoi:10.1103/PhysRevC.44.1541$$hN.S. Amelin$$mhRvC..44.1541A N.S. Amelin et al$$o33$$sPhys.Rev.,C44,1541$$sPhys.Rev.,C44,1541$$y1991
000070277 999C5 $$0323709$$9refextract$$adoi:10.1103/PhysRevLett.67.1523$$hN.S. Amelin$$mhRvL..67.1523A N.S. Amelin et al$$o34$$sPhys.Rev.Lett.,67,1523$$sPhys.Rev.Lett.,67,1523$$y1991
000070277 999C5 $$0362180$$9refextract$$adoi:10.1103/PhysRevC.47.2299$$hN.S. Amelin$$mhRvC..47.2299A N.S. Amelin et al$$o35$$sPhys.Rev.,C47,2299$$sPhys.Rev.,C47,2299$$y1993
000070277 999C5 $$0195629$$9refextract$$adoi:10.1016/0375-9474(83)90433-5$$hV.D. Toneev K.K. Gudima$$muPhA.400..173T V.D. Toneev, K.K. Gudima$$o36$$sNucl.Phys.,A400,173$$sNucl.Phys.,A400,173$$y1983
000070277 999C5 $$9refextract$$hK.K. Gudima, S.G. Mashnik, A.J. Sierk$$mReport LA-UR-01-6804, Los Alamos$$o37$$pLANL$$y2001
000070277 999C5 $$01094216$$9refextract$$mKh.U. Abraamyan, Resonance structure in the $\gamma\gamma$ and $\pi^{0}\pi^{0}$ systems in $dC$ interactions$$o38$$rarXiv:1203.4198
000070277 999C5 $$9refextract$$m@N$$o39$$uhttp://nica.jinr.ru/files/BM