《2019年最新-Kaluza-Kleinecitationofgluon胶子的卡鲁扎-克莱因激励-精选文档》由会员分享，可在线阅读，更多相关《2019年最新-Kaluza-Kleinecitationofgluon胶子的卡鲁扎-克莱因激励-精选文档（30页珍藏版）》请在金锄头文库上搜索。
1、aswithXD&Kaluza-KleinexcitationofgluonatATLASExoticsignalsatHadronColliders04MarcEscalier,LPNHEParisResultswithintheATLASexperimentExoticsignalsatHadronColliders04,Durham5040302010emMSSM+XDweakXD:themodels4-oo（叼2）=工超（如）一力计=+n2M72=OQpih时R3/R2/R ADDlargeXD（mm）RclTeV1M館卄严 SmallXD（TeV1）（Antoniadis）Randa
2、l-Sandmm0Illourmodel,gaugebosonscanpropagateinXDmodificationoftheRGE（EDudas,R.Dienes,T.Ghergetta,hep/ph9803466andhep/ph9807522）Mgvt30TeVStrong.for（4+2）dandR=l/10TpV1050001000015000ZDOOO2500030DOOHierarchyproblemcanbesolved!DetectionofKKexcitationsofgaugebosons Obseivationofdeviationsofa Obseivationo
3、fresonancesgluon-qq?mostabundantT-asdifficulttodetectoverQCDjetbckY,ZG.AzuelosandG.Polesello一proceedingsoftheWorkshop“PhysicsatTeVcolliders,LesHouches,May2019-hep-ph/0204031,ATL-COM-PHYS-2019-004G.Polesello,M.PlataQiQjqxqjQiQiQiqAq貞jF%厉FeyimiandiagramsfordijetsproductioninvolvingKKexcitationsQiQiqxq
4、】ModificationofthecouplingconstantC.BalazsandB.Laforge.Probing(ev-scalegaugeunificationbyhadroniccollisions.Phys.Lett.,B525:219-224,2002.HighEnergytheoryat(4+8)DEffectivetheoryat4DwithKaluza-Kleinexcitationsofgaugebosons(fermionscanalsoexistbutarenotconsideredinthefollowing)q+kSM:%(P)-%(W)2兀lnmzpvq(
5、&i,&2,&3)=(33/5,1,-3)MSSM+XD:2rA2dtTit(乙123)=(3/5：3,-6)+耳(4,4,4)r=7T(Xs)2/Sooex询(丁)=Xexp(7rirn2t/25r(5/2)Jacobifunction:4X&=(1+6/22、DataanalysisatLHC Whatcanwemeasure?2competitiveeffects:KKexcitationsmakethecross-sectiontoincreasedecreaseofamakescrdecreaseathighMc(counterbalanceeffectofKK)Influenceo
6、fas(dominantforhighMc)10N=MgdcySMdcyXD.dMjjJMgdMjj(1M.jjC1011109Mmaxda*MTT7-d,MjjdaXDdM=rrtin计G)daSMdMT；2000：40006000|dijetmassGeV/c2MmindMjjNa=C-800010000Mmin(pairofjet)(GeV)Mmax(welltake14TeV)MmindMjjReachableR1(GeV)fordifferentscenarii(Nsmax5)Accelerator5=2E6Tevatron940980LHC1014010200I31NsMNXD7N
7、sm|GeVLimits:influenceofKKinthepropagator?KKgluonpropagatorD.A.Dicus,C.D.McMullen,andS.Nandi.Colliderimplicationsofkaluza-kleinexcitationsofthegluons.Phys.065:076007,2002.N力(0)propagatorofn-KKresonancecnn=0SMcn0=2mn=ii/Rc0=l?n=0:SMgluonrn-2asmnPn=P2-Jrn=f(as)%=f(rjCross-sections-|M|2(amplitudesquare
8、)2D茁3)2+D册(P)D冷(g)NEm,n=0mnPmQn+n)(Pm)2+mrnrrn)(?n)2+mnFn)ImplementingXDintoPythia(doneatLesHouches2019)XDfunctionfromC.BalazsM/mMeiscompactificationscale/scMscutoffscalelz/(r-k(“址卩)計2曲)如(切+呛呛(叫=层o(祐2；歸诙册+7再：jm,n=0masslessgluonEGPn=肛祖1-M?：陀严(MI2-EGPi.i=EGB训:Mil-応*3：严*2+斑i*2*G*3】lEGPij=EGPjj/(H2-Mj*2
9、)*2+Mj*2*Gj*2)EGPij=fl*GPyPropagatorS,Srn=2(Xsmn8IF(ISUB.EQ.11.OR.ISUB.EQ.12)THENSQDQQT=EffGluProp(TH,TH,XKKL(l),XKKL(2)REDQST=EffGluProp(SH,TH,XKKL(l),XKKL(2)SQDQQU=EffGluPiop(UH,UH,XKKL(1).XKKL(2)REDQTU=EffGluProp(UH,TH,XKKL(l),XKKL(2)SQDQQS=EffGluProp(SH,SH.XKKL(l),XKKL(2)ENDIF Cross-sectiondevia
10、tionsQrrPsm(pb)jetsatLHCMs=50TeVto4rIO2idsymbol-Dicus,McMullen,ISsndi1TeV3TeV。5TeV，7TeV9TeVhisto-MCwilhXD1TV3TeV5TeV口7TeV9TeV-SM三二二一-三三一一_三三二-三三二一三Noninningofalpha_shereUs:CTEQ6L1Dicusetal:CTEQ3MObseivationuptoM15TeV0200400600800100012001400160015002000220024002600280030003200310036004102contribs:pr
11、opagator+coupling(as)m,n=0和絆dt74听s=听认）-詈山才鲁l严II1I11I1IIllijclsatLHCMs=50TeVsymbclOicusMcMullen,Mandihisto=MCwithXD1TeVITeVProcesses11,0200400600800100012001400L600(80020IM1220024M26002800300032003*36003TeV。5TeV3TeV5TeV亠7TeV9TeVtSM7TeV9TeVSM02004d0(WO5500IWQ120014001600(80020002200002600280030003200W
12、OO3600iIiiIIiiiiIijetsatLHCMs=50TeVhita=fticwithXDITeV 3TeV5TeVII7TeV9TeVSMN2d茁(q)d幼+d筋(q)d冷=刀mnPmQn+n)(Pm)2+mrnrrn)(?n)2+mnFn)6WithninningAllprocessesd茁(q)2+d册(q)d冷(q)=刀-1/X_-1/bi-hi卩m,n=0krr/,o2m772-2tmnPmQn+n)(Pm)2+mrnrrn)(?n)2+mnFn)(爲)ihs石iiiiiiiiiiijetsatLHCMs=50TeVanumingEg-1TV3TeV5TeV7TeV9TeV
13、Allprocesse0200400600800LOGO12001400160018002000220024002600280030003200340036000600W10001200WOO1600lQQ20l2200N0Q26OJ2SW0300032IW3400300Frew3.i(G的a=f(T)andr=f(a)iterativeprocesseven麻1000(19OJQ800070006G0Q50004G0Q300(1200(1LGOQ|NsmxdSlgmf=xAWance)S/sqrt(B):15997?9aresonancedifficulttoobserveoverqcdba
14、ckgroundIIIIIIIIIIIIII70072575077580)82585U875S)W92595097510001Q251051)1U751IO)LI2511501175L2OTSqft(s)Strategy:enhances-channelcontribu+ionSearchforextra-dimensions: Kaluza-Kleinresonanceproductionins-chaimelbackgroundQCDbackgroundist-chamielidea:use(s,t)Mandelstamvariablesdistributionstorejectschaimelfromtchannelcontributions?%(?)schaimelleptons:E=csttchanneltMandelstamvariable(toru=k)x102100001500020000,25000300003500040000K51J6.0厂0占、qd)“poo.500010000150002000025000300003500040000KCGeV2)500010000150002000025000300003500040000K(GeV-2o.510.1o-d、qd辽PGP*Tdea:imposes,lookatt1
