6533b870fe1ef96bd12cf357

RESEARCH PRODUCT

Exclusive production of pion and kaon meson pairs in two photon collisions at LEP

O. BuchmüllerO. BuchmüllerPaul HankeDonato CreanzaL. PassalacquaDominique PallinJohn T HarveyC. N. BoothF. CeruttiAlessandro GiassiJ. JoussetA. KraanGiuseppe RasoY. S. GaoY. S. GaoVincent LemaitreVincent LemaitreG. RudolphLorenzo FoàH. VideauC. BoreanMario AntonelliB.s. NilssonS. XueR.d. HillL.t. JonesNancy MarinelliM H. LehtoP. PerezP. ColasGerardo GanisGerardo GanisM. MartinezA. S. ThompsonP. R. NortonB. JostAlberto MessineoH. DietlAlain BonissentG. GianniniMaria Pilar CasadoWerner WiedenmannS. GonzalezK. TittelKonrad KleinknechtPh. HeusseG. B. TaylorP. TempestaS. L. CartwrightG. MaggiLester D.r. ThompsonA. BlondelSalvatore NuzzoD. FayolleJiali LinJ.c. ThompsonO. CallotGiuseppe ZitoEttore FocardiJohn RanderIan R TomalinS. DessagneJ.j. WardYuehong XieGiuseppe BagliesiDjamel Eddine BoumedieneDavid HutchcroftDavid HutchcroftA. EaletG. HughesH. HeFrancesco RagusaR. W. ClifftB. PietrzykJ. P. LeesR. BarateJ. PutzJ.g. LynchM. Fernandez-bosmanR. BeuselinckI. De BonisA. BöhrerLucia SilvestrisJ. K. SedgbeerD. KuhnS.r. ArmstrongN. A. RobertsonM. WunschR. WhiteA. MoutoussiD.p. ClarkeF. CombleyB. VallageG. LütjensH. WachsmuthJ. BoucrotH. RuizKyle CranmerD. DecampAndre TilquinJørgen Beck HansenF. BadaudStephane JezequelT. MedcalfD.p.s. FergusonEric LanconQun OuyangE. FernandezX. HuangP. GirtlerM. C. LemaireP. A. McnamaraRoberto TenchiniKarl JakobsA.-s. MüllerRoger JonesO. AwunorS. JinY. B. PanR. BruneliereT. ZieglerK. HüttmannB. FabbroM.-n. MinardG. EllisF. RuggieriEvelina Vassileva Bouhova-thackerGavin DaviesPeter HansenM. ChmeissaniG. LeibenguthA. NgacF. MachefertG. PrangeS. BravoPaolo LaurelliLaurent SerinSau Lan WuV. HeppPaolo AzzurriGünther DissertoriD. SchlatterJ-c. BrientJ. M. CrespoLl. GarridoLl. GarridoF. MartinU. BlumenscheinH. G. MoserMarumi KadoMarumi KadoL. RolandiW. CameronF. HölldorferA. JacholkowskaA. RanieriP. NegusJunjie WuP. J. DornanO. Van Der AaA. DavidGiuseppe IaselliTing WangA. Garcia-bellidoG. SanguinettiF. KayserPatrick JanotA. RougéJ-f GrivazJ. A. StrongStephane MonteilTommaso BoccaliA. AntonelliMaria SmizanskaM. VillegasE. SimopoulouF. FosterA. PachecoGiovanna SelvaggiG.a. BlairStefan SchaelS. BrandtO.j. HayesR. SettlesR. XuFranco LigabueMarco CattaneoW. ZhaoS.a. RutherfordAnna ColaleoB. Bloch-devauxJ. KileRichard CavanaughRichard CavanaughC. MarkouA. PutzerK. ZachariadouF. RanjardG. MannocchiN. De FilippisEmmerich KneringerE. MerleF. TeubertArno HeisterD. FouchezChristophe DelaereChristophe DelaereTimothy BarklowTimothy BarklowC. CurtilAlan LitkeMario MaggiPiero Giorgio VerdiniB. MichelGy. WolfG. A. CowanJ. H. Von Wimmersperg-toellerAlexander FinchAristotelis KyriakisH. HuK. BerkelmanM. De PalmaMaria GironeMaria GironeJ. KennedyW. MännerC. GoyH. DrevermannG. CaponClaus GrupenS. SchmelingJie ZhangPaul HodgsonXin WuV. ChiarellaF. GianottiG. BencivenniBarbara ClerbauxBarbara ClerbauxC. K. BowderyAndrea VenturiJ.m. PascoloPedro Teixeira-diasJj VeilletMarkus FrankSteven WasserbaechAndrea GiammancoJ. NielsenFabrizio PallaA. MisiejukHasko StenzelG. ParriniPascal PerretJ. D. HansenP. PayreL. DuflotI. VideauRoger FortyPaolo SpagnoloA. SciabàA. VayakiGiacomo SguazzoniBenjamin TrocméVitaliano CiulliBoris TuchmingDuccio AbbaneoElizabeth LocciJ. NowellJ.d. HansenLei ZhangB. RenkPere MatoT. R. EdgecockF. BossiVal O'sheaH. G. SanderV. M. GheteG.p. MurtasJ. RothbergAlessia TricomiM.r. PearsonChristian ZeitnitzP. CoyleS. DhamotharanS. DhamotharanAndrea ValassiGeorg ZobernigM. G. GreenM. DavierJ. HessC. GewenigerE. E. KlugeAlain Falvard

subject

Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsAlephMeson010308 nuclear & particles physicsHigh Energy Physics::LatticeInvariant (physics)16. Peace & justice01 natural sciencesNuclear physicsAngular distributionPion0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Mass spectrumHigh Energy Physics::ExperimentInvariant massNuclear Experiment010306 general physicsParticle Physics - Experiment

description

Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data collected between 1992 and 2000. Cross-sections are presented as a function of cos theta* and invariant mass, for \ cos theta* \ < 0.6 and invariant masses between 2.0 and 6.0 GeV/c(2) (2.25 and 4.0 GeV/c(2)) for pions (kaons). The shape of the distributions are found to be well described by QCD predictions but the data have a significantly higher normalization. (C) 2003 Published by Elsevier B.V.

yearjournalcountryeditionlanguage
2003-01-01Physics Letters B
https://doi.org/10.1016/j.physletb.2003.07.031