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. 2000 Feb 21;84(8):1663-8.
doi: 10.1103/PhysRevLett.84.1663.

Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV

T Affolder  1 H AkimotoA AkopianM G AlbrowP AmaralS R AmendoliaD AmideiJ AntosG ApollinariT ArisawaT AsakawaW AshmanskasM AtacP Azzi-BacchettaN BacchettaM W BaileyS BaileyP de BarbaroA Barbaro-GaltieriV E BarnesB A BarnettM BaroneG BauerF BedeschiS BelforteG BellettiniJ BellingerD BenjaminJ BensingerA BeretvasJ P BergeJ BerryhillS BertolucciB BevenseeA BhattiC BigongiariM BinkleyD BiselloR E BlairC BlockerK BloomB BlumenfeldB S BluskA BocciA BodekW BokhariG BollaY BonushkinD BortolettoJ BoudreauA BrandlS van den BrinkC BrombergN BrunerE Buckley-GeerJ BudagovH S BuddK BurkettG BusettoA Byon-WagnerK L ByrumM CampbellA CanerW CarithersJ CarlsonD CarlsmithJ CassadaA CastroD CauzA CerriP S ChangP T ChangJ ChapmanC ChenY C ChenM T ChengM ChertokG ChiarelliI Chirikov-ZorinG ChlachidzeF ChlebanaL ChristofekM L ChuS CihangirC I CiobanuA G ClarkM CobalE CoccaA ConnollyJ ConwayJ CooperM CordelliJ Guimaraes da CostaD CostanzoJ CranshawD Cronin-HennessyR CroppR CulbertsonD DagenhartF DejonghS Dell'agnelloM Dell'orsoR DeminaL DemortierM DeninnoP F DerwentT DevlinJ R DittmannS DonatiJ DoneT DorigoN EddyK EinsweilerJ E EliasE Engels JrW ErdmannD ErredeS ErredeQ FanR G FeildC FerrettiI FioriB FlaugherG W FosterM FranklinJ FreemanJ FriedmanY FukuiS GadomskiS GaleottiM GallinaroT GaoM Garcia-SciveresA F GarfinkelP GattiC GayS GeerD W GerdesP GiannettiP GirominiV GlagolevM GoldJ GoldsteinA GordonA T GoshawY GotraK GoulianosH GrassmannC GreenL GroerC Grosso-PilcherM GuentherG GuillianR S GuoC HaberE HafenS R HahnC HallT HandaR HandlerW HaoF HappacherK HaraA D HardmanR M HarrisF HartmannK HatakeyamaJ HauserJ HeinrichA HeissB HinrichsenK D HoffmanC HolckR HollebeekL HollowayR HughesJ HustonJ HuthH IkedaM IncagliJ IncandelaG IntrozziJ IwaiY IwataE JamesH JensenM JonesU JoshiH KambaraT KamonT KanekoK KarrH KashaY KatoT A KeaffaberK KelleyM KellyR D KennedyR KephartD KhazinsT KikuchiM KirkB J KimH S KimS H KimY K KimL KirschS KlimenkoD KnoblauchP KoehnA KöngeterK KondoJ KonigsbergK KordasA KorytovE KovacsJ KrollM KruseS E KuhlmannK KurinoT KuwabaraA T LaasanenN LaiS LamiS LammelJ I LamoureuxM LancasterG LatinoT LecompteA M Lee 4thS LeoneJ D LewisM LindgrenT M LissJ B LiuY C LiuN LockyerM LoretiD LucchesiP LukensS LusinJ LysR MadrakK MaeshimaP MaksimovicL MalferrariM ManganoM MariottiG MartignonA MartinJ A MatthewsP MazzantiK S McFarlandP McIntyreE McKigneyM MenguzzatoA MenzioneE MeschiC MesropianC MiaoT MiaoR MillerJ S MillerH MinatoS MiscettiM MishinaN MoggiE MooreR MooreY MoritaA MukherjeeT MullerA MunarP MuratS MurgiaM MusyJ NachtmanS NahnH NakadaT NakayaI NakanoC NelsonD NeubergerC Newman-HolmesC Y NganP NicolaidiH NiuL NodulmanA NomerotskiS H OhT OhmotoT OhsugiR OishiT OkusawaJ OlsenC PagliaroneF PalmonariR PaolettiV PapadimitriouS P PappasA ParriD PartosJ PatrickG PaulettaM PauliniA PerazzoL PescaraT J PhillipsG PiacentinoK T PittsR PlunkettA PomposL PondromG PopeF ProkoshinJ ProudfootF PtohosG PunziK RaganD ReherW RieglerA RibonF RimondiL RistoriW J RobertsonA RobinsonT RodrigoS RolliL RosensonR RoserR RossinW K SakumotoD SaltzbergA SansoniL SantiH SatoP SavardP SchlabachE E SchmidtM P SchmidtM SchmittL ScodellaroA ScottA ScribanoS SeglerS SeidelY SeiyaA SemenovF SemeriaT ShahM D ShapiroP F ShepardT ShibayamaM ShimojimaM ShochetJ SiegristG SignorelliA SillP SinervoP SinghA J SlaughterK SliwaC SmithF D SniderA SolodskyJ SpaldingT SpeerP SphicasF SpinellaM SpiropuluL SpiegelL StancoJ SteeleA StefaniniJ StrologasF StrumiaD StuartK SumorokT SuzukiR TakashimaK TakikawaM TanakaT TakanoB TannenbaumW TaylorM TecchioP K TengK TerashiS TetherD TheriotR Thurman-KeupP TiptonS TkaczykK TollefsonA TollestrupH ToyodaW TrischukJ F de TroconizS TruittJ TsengN TuriniF UkegawaJ VallsS Vejcik 3rdG VelevR VidalR VilarI VologouevD VucinicR G WagnerR L WagnerJ WahlN B WallaceA M WalshC WangC H WangM J WangT WatanabeT WattsR WebbH WenzelW C Wester 3rdA B WicklundE WicklundH H WilliamsP WilsonB L WinerD WinnS WolbersD WolinskiJ WolinskiS WormX WuJ WyssA YagilW YaoG P YehP YehJ YohC YosefT YoshidaI YuS YuA ZanettiF ZettiS Zucchelli(CDF Collaboration)
Affiliations

Measurement of b-Quark Fragmentation Fractions in pp[over ¯] Collisions at sqrt[s]=1.8 TeV

T Affolder et al. Phys Rev Lett. .

Abstract

We have studied the production of B hadrons in 1.8-TeV pp[over ¯] collisions. We present measurements of the fragmentation fractions, f_{u}, f_{d}, f_{s}, and f_{baryon}, of produced b quarks that yield B^{+}, B^{0}, B_{s}^{0}, and Λ[over ¯]_{b}^{0} hadrons. Reconstruction of five electron-charm final states yields f_{s}/( f_{u}+f_{d})=0.213±0.068 and f_{baryon}/( f_{u}+f_{d})=0.118±0.042, assuming f_{u}=f_{d}. If all B hadrons produced in pp[over ¯] collisions cascade to one of these four hadrons, we determine f_{u}=f_{d}=0.375±0.023, f_{s}=0.160±0.044, and f_{baryon}=0.090±0.029. If we do not assume f_{u}=f_{d}, we find f_{d}/f_{u}=0.84±0.16.

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