Elastic Scattering and Total Cross-Section in p+p Reactions
T. CsörgőMTA KFKI RMKI, Budapest, HungaryG. AntchevBulgarian Academy of Sciences, Sofia, BulgariaP. AspellCERN, Geneva, SwitzerlandI. AtanassovCERN, Geneva, SwitzerlandV. AvatiCERN, Geneva, SwitzerlandJoachim BaechlerCERN, Geneva, SwitzerlandV. BerardiDipartimento Interateneo di Fisica di Bari, Bari, ItalyM. BerrettiUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyE. BossiniUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyM. BozzoDipartimento Interateneo di Fisica di Bari, Bari, ItalyP. BrogiUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyE. BrückenDepartment of Physics, University of Helsinki, Helsinki, FinlandA. BuzzoSezione INFN, Genova, Genova, ItalyF. CafagnaINFN Sezione di Bari, Bari, ItalyM. CalicchioDipartimento Interateneo di Fisica di Bari, Bari, ItalyM.G. CatanesiINFN Sezione di Bari, Bari, ItalyC. E. CovaultDept. of Physics, Case Western Reserve University, Cleveland, OH, USAM. CsanádMTA KFKI RMKI, Budapest, HungaryM. DeileCERN, Geneva, SwitzerlandE. DimovasiliCERN, Geneva, SwitzerlandM. DoubekCzech Technical University, Praha, Czech RepublicK. EggertDept. of Physics, Case Western Reserve University, Cleveland, OH, USAV. Eremin) INRNE-BAS, Inst. for Nucl. Res. and Nucl. Energy, Bulgarian Acad. Sci., Sofia, BulgariaR. FerrettiSezione INFN, Genova, Genova, ItalyF. FerroSezione INFN, Genova, Genova, ItalyA. Fiergolski) Institute of Nuclear Physics, Polish Academy of Science, Cracow, PolandF. GarcíaHelsinki Institute of Physics, Helsinki, FinlandS. GianìCERN, Geneva, SwitzerlandV. GrecoCERN, Geneva, SwitzerlandL. GrzankaCERN, Geneva, SwitzerlandJ. HeinoHelsinki Institute of Physics, Helsinki, FinlandT. E. HildenDepartment of Physics, University of Helsinki, Helsinki, FinlandMariantonietta IntontiINFN Sezione di Bari, Bari, ItalyM. JandaCzech Technical University, Praha, Czech RepublicJ. KašparCERN, Geneva, SwitzerlandJ. KopalCERN, Geneva, SwitzerlandV. KundrátInst. of Physics, Academy of Sciences of Czech Republic, Praha, Czech RepublicK. KurvinenHelsinki Institute of Physics, Helsinki, FinlandS. LamiINFN Sezione di Pisa, Pisa, ItalyG. LatinoUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyR. LauhakangasHelsinki Institute of Physics, Helsinki, FinlandT. Leszko) Institute of Nuclear Physics, Polish Academy of Science, Cracow, PolandÉ. LippmaaNational Institute of Chemical Physics and Biophysics NICPB, Tallinn, EstoniaM. V. LokajíčekInst. of Physics, Academy of Sciences of Czech Republic, Praha, Czech RepublicM. Lo VetereSezione INFN, Genova, Genova, ItalyF. Lucas RodríguezCERN, Geneva, SwitzerlandM. Macrı́Sezione INFN, Genova, Genova, ItalyL. MagalettiDipartimento Interateneo di Fisica di Bari, Bari, ItalyG. MagazzúINFN Sezione di Pisa, Pisa, ItalyA. MercadanteDipartimento Interateneo di Fisica di Bari, Bari, ItalyM. MeucciUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyS. MinutoliSezione INFN, Genova, Genova, ItalyF. NemesEötvös Loránd University, Budapest, HungaryH. NiewiadomskiCERN, Geneva, SwitzerlandE. NoschisCERN, Geneva, SwitzerlandT. NovákMTA KFKI RMKI, Budapest, HungaryE. OliveriUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyF. OljemarkDepartment of Physics, University of Helsinki, Helsinki, FinlandR. OravaDepartment of Physics, University of Helsinki, Helsinki, FinlandM. OriunnoCERN, Geneva, SwitzerlandK. ÖsterbergDepartment of Physics, University of Helsinki, Helsinki, FinlandP. PalazziUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyA. L. PerrotCERN, Geneva, SwitzerlandE. PedreschiINFN Sezione di Pisa, Pisa, ItalyJuha PetäjäjärviHelsinki Institute of Physics, Helsinki, FinlandJ ProcházkaInst. of Physics, Academy of Sciences of Czech Republic, Praha, Czech RepublicM. QuintoINFN Sezione di Bari, Bari, ItalyE. RadermacherCERN, Geneva, SwitzerlandE. RadicioniINFN Sezione di Bari, Bari, ItalyF. RavottiCERN, Geneva, SwitzerlandE. RobuttiSezione INFN, Genova, Genova, ItalyL. RopelewskiCERN, Geneva, SwitzerlandG. RuggieroCERN, Geneva, SwitzerlandH. SaarikkoDepartment of Physics, University of Helsinki, Helsinki, FinlandG. SanguinettiINFN Sezione di Pisa, Pisa, ItalyA. SantroniSezione INFN, Genova, Genova, ItalyA. ScribanoUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyG. SetteSezione INFN, Genova, Genova, ItalyW. SnoeysCERN, Geneva, SwitzerlandF. SpinellaINFN Sezione di Pisa, Pisa, ItalyJ. SziklaiMTA KFKI RMKI, Budapest, HungaryC. TaylorDept. of Physics, Case Western Reserve University, Cleveland, OH, USAN. TuriniUniversità degli Studi di Siena and Gruppo Collegato INFN di Siena, Siena, ItalyV. VacekCzech Technical University, Praha, Czech RepublicM. VítekCzech Technical University, Praha, Czech RepublicJ. WeltiDepartment of Physics, University of Helsinki, Helsinki, FinlandJ. WhitmoreDept. of Physics, Penn State University, University Park, PA, USA
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Аннотация
Proton-proton elastic scattering has been measured by the TOTEM experiment at the CERN Large Hadron Collider at $\\sqrt{s} = 7 $ TeV in special runs with the Roman Pot detectors placed as close to the outgoing beam as seven times the transverse beam size. The differential cross-section measurements are reported in the |t|-range of 0.36 to 2.5 GeV$^2$. Extending the range of data to low t values from 0.02 to 0.33 GeV$^2$,and utilizing the luminosity measurements of CMS, the total proton-proton cross section at $\\sqrt{s}$ = 7 TeV is measured to be $(98.3 \\pm 0.2^{stat} \\pm 2.8^{syst})$ mb.
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