From: SMTP%"Guido.Montagna@pv.infn.it" 21-SEP-1999 19:26:46.62 To: GIAMPIERO CC: Subj: primi numeri LEP MC From: Guido.Montagna@pv.infn.it Date: Tue, 21 Sep 1999 19:22:01 +0200 To: GIAMPIERO@to.infn.it CC: MONTAGNA@pv.infn.it Message-Id: <990921192201.22a5557c@pv.infn.it> Subject: primi numeri LEP MC Caro Giampiero, cominciamo a mandarti i numeri ora a nostra disposizione. Si riferiscono a 1) single-W, sezioni d'urto e distribuzioni Born, alle tre energie e per il processo e+e- -> e- {bar nu_e} u {bar d} con taglio su massa invariante M_ud > 45 GeV e taglio standard su angolo elettrone |cos\theta_e|>0.997; 2) primi numeri 4f+\gamma, sezioni d'urto Born per il momento, alle tre energie per il processo e+e- -> mu- {bar nu_mu} u {bar d} gamma con M_ud > 10 GeV, |cos\theta_\gamma|<0.985, e altri tagli su fotone e muone come da proposal. Stiamo girando anche le sezioni d'urto per e+e- -> e- {bar nu_e} u {bar d} gamma. Per le distribuzioni ci occorre tempo per aver bin con errore accettabile. Speriamo sia chiaro, ma siamo ovviamente qui per ogni necessita`. Stiamo facendo il possibile per altri processi e/o tagli. Grazie, ciao Andrea, Fulvio, Guido, Mauro, Marco e Oreste 1) Single-W ============================================ Process: e+e- -> e- {bar nu_e} u {bar d} Input parameters as in 4f proposal ============================================ E_beam = 183. GeV BORN cross-section: 88.42 +- 0.12 fb BORN distribution of electron theta angle with respect to the beam axis from 0.deg to 2.deg: bin cross section error ----------------------------------------------------- 0.0 - 0.1 .4135499290065022D+02 .8186640205231210D-01 0.1 - 0.2 .1114414076574722D+02 .3752944568409221D-01 0.2 - 0.3 .5204553003881757D+01 .4264919317158501D-01 0.3 - 0.4 .3405529032467733D+01 .1727612916517125D-01 0.4 - 0.5 .2530528828576840D+01 .1676189690784937D-01 0.5 - 0.6 .2000768556828135D+01 .1239320817107811D-01 0.6 - 0.7 .1682558091875138D+01 .1194133411544829D-01 0.7 - 0.8 .1449600155377173D+01 .1497598146691455D-01 0.8 - 0.9 .1280751017890650D+01 .1144191806666181D-01 0.9 - 1.0 .1135842670324891D+01 .9496016551124153D-02 1.0 - 1.1 .1005388516381579D+01 .8488304684229920D-02 1.1 - 1.2 .9201066935594455D+00 .8867551476280020D-02 1.2 - 1.3 .8448409462633700D+00 .8951793334943508D-02 1.3 - 1.4 .7963673709330552D+00 .7883041148314882D-02 1.4 - 1.5 .7424668852092038D+00 .8904165374312994D-02 1.5 - 1.6 .7109643510155977D+00 .1283316606852114D-01 1.6 - 1.7 .6458265260652128D+00 .8131443554257652D-02 1.7 - 1.8 .6052673046607936D+00 .6720026101849108D-02 1.8 - 1.9 .5833845447137946D+00 .6679987540297683D-02 1.9 - 2.0 .5563120261533194D+00 .6871763178828659D-02 ========================================================= E_beam = 189. GeV BORN cross section: 99.25 +- 0.13 fb BORN distribution of electron theta angle with respect to the beam axis from 0.deg to 2.deg: bin cross section error ----------------------------------------------------- 0.0 - 0.1 .4688274377325614D+02 .9346831958075733D-01 0.1 - 0.2 .1239111493986885D+02 .4088966417734962D-01 0.2 - 0.3 .5792508011230446D+01 .4781257245618275D-01 0.3 - 0.4 .3771750785138479D+01 .1909206308333697D-01 0.4 - 0.5 .2828087296264409D+01 .1948900788513987D-01 0.5 - 0.6 .2217715921138683D+01 .1334040515556816D-01 0.6 - 0.7 .1877097388196228D+01 .1377963727626215D-01 0.7 - 0.8 .1613382594181132D+01 .1649248396534810D-01 0.8 - 0.9 .1423908885301660D+01 .1261600979761690D-01 0.9 - 1.0 .1256671199697950D+01 .1064041614246557D-01 1.0 - 1.1 .1117727483110774D+01 .9652935203760246D-02 1.1 - 1.2 .1030662770627272D+01 .1043993865647530D-01 1.2 - 1.3 .9427373382911042D+00 .9606096301415692D-02 1.3 - 1.4 .8825674550496753D+00 .1004899489259787D-01 1.4 - 1.5 .8371425619488512D+00 .9789784352074256D-02 1.5 - 1.6 .7890685446844806D+00 .1447712851576251D-01 1.6 - 1.7 .7145639206321065D+00 .7816858258579244D-02 1.7 - 1.8 .6806190973100328D+00 .7913148913673543D-02 1.8 - 1.9 .6449190233953116D+00 .7269796221008323D-02 1.9 - 2.0 .6193218940745516D+00 .8108704204621288D-02 ======================================================= E_beam = 200. GeV BORN cross section: 120.23 +- 0.16 fb BORN distribution of electron theta angle with respect to the beam axis from 0.deg to 2.deg: bin cross section error ----------------------------------------------------- 0.0 - 0.1 .5777258404481868D+02 .1146436482167361D+00 0.1 - 0.2 .1478450548469600D+02 .4710330354259071D-01 0.2 - 0.3 .6902133006318456D+01 .5752530134225827D-01 0.3 - 0.4 .4510578146205187D+01 .2418365679521829D-01 0.4 - 0.5 .3363911112205491D+01 .2356372532462839D-01 0.5 - 0.6 .2656018115789667D+01 .1659433076847766D-01 0.6 - 0.7 .2242391538821762D+01 .1676589081810454D-01 0.7 - 0.8 .1933253590918477D+01 .2021770472920821D-01 0.8 - 0.9 .1697983201899575D+01 .1459645964603448D-01 0.9 - 1.0 .1484414030331711D+01 .1226783033901171D-01 1.0 - 1.1 .1342032459772527D+01 .1294722374270281D-01 1.1 - 1.2 .1212825472667602D+01 .1145003936234813D-01 1.2 - 1.3 .1138472706789372D+01 .1230033267392619D-01 1.3 - 1.4 .1054356654326001D+01 .1218841709891212D-01 1.4 - 1.5 .1004054388577856D+01 .1271397070344232D-01 1.5 - 1.6 .9169662678930347D+00 .1566585471294629D-01 1.6 - 1.7 .8559047821748360D+00 .9514406514003237D-02 1.7 - 1.8 .8254940756468303D+00 .1100202448879218D-01 1.8 - 1.9 .7625337487455496D+00 .8950225544812318D-02 1.9 - 2.0 .7441999660452293D+00 .1001794983371942D-01 ========================================================== 2) Four fermions plus gamma ================================================== Process: e+e- -> mu- {bar nu_mu} u {bar d} gamma Input parameters as in 4f proposal ================================================== E_beam = 200. GeV BORN cross section: 78.80 +- 0.26 fb E_beam = 189. GeV BORN cross section: 75.18 +- 0.24 fb E_beam = 183. GeV BORN cross section: 70.19 +- 0.19 fb ====================================================