Luminosity-independent measurement of the proton-proton total cross section at √s=8 TeV

The TOTEM collaboration has measured the proton-proton total cross section at √s=8 TeV using a luminosity-independent method. In LHC fills with dedicated beam optics, the Roman pots have been inserted very close to the beam allowing the detection of ~90% of the nuclear elastic scattering events. Sim...

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Veröffentlicht in:	Physical review letters 2013-07, Vol.111 (1), p.012001-012001, Article 012001
Hauptverfasser:	Antchev, G, Aspell, P, Atanassov, I, Avati, V, Baechler, J, Berardi, V, Berretti, M, Bossini, E, Bottigli, U, Bozzo, M, Brücken, E, Buzzo, A, Cafagna, F S, Calicchio, M, Catanesi, M G, Covault, C, Csanád, M, Csörgő, T, Deile, M, Doubek, M, Eggert, K, Eremin, V, Ferretti, R, Ferro, F, Fiergolski, A, Garcia, F, Giani, S, Greco, V, Grzanka, L, Heino, J, Hilden, T, Intonti, R A, Kašpar, J, Kopal, J, Kundrát, V, Kurvinen, K, Lami, S, Latino, G, Lauhakangas, R, Leszko, T, Lippmaa, E, Lokajíček, M, Lo Vetere, M, Lucas Rodríguez, F, Macrí, M, Mäki, T, Mercadante, A, Minafra, N, Minutoli, S, Nemes, F, Niewiadomski, H, Oliveri, E, Oljemark, F, Orava, R, Oriunno, M, Österberg, K, Palazzi, P, Procházka, J, Quinto, M, Radermacher, E, Radicioni, E, Ravotti, F, Robutti, E, Ropelewski, L, Ruggiero, G, Saarikko, H, Santroni, A, Scribano, A, Smajek, J, Snoeys, W, Sziklai, J, Taylor, C, Turini, N, Vacek, V, Vítek, M, Welti, J, Whitmore, J, Wyszkowski, P
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creator	Antchev, G Aspell, P Atanassov, I Avati, V Baechler, J Berardi, V Berretti, M Bossini, E Bottigli, U Bozzo, M Brücken, E Buzzo, A Cafagna, F S Calicchio, M Catanesi, M G Covault, C Csanád, M Csörgő, T Deile, M Doubek, M Eggert, K Eremin, V Ferretti, R Ferro, F Fiergolski, A Garcia, F Giani, S Greco, V Grzanka, L Heino, J Hilden, T Intonti, R A Kašpar, J Kopal, J Kundrát, V Kurvinen, K Lami, S Latino, G Lauhakangas, R Leszko, T Lippmaa, E Lokajíček, M Lo Vetere, M Lucas Rodríguez, F Macrí, M Mäki, T Mercadante, A Minafra, N Minutoli, S Nemes, F Niewiadomski, H Oliveri, E Oljemark, F Orava, R Oriunno, M Österberg, K Palazzi, P Procházka, J Quinto, M Radermacher, E Radicioni, E Ravotti, F Robutti, E Ropelewski, L Ruggiero, G Saarikko, H Santroni, A Scribano, A Smajek, J Snoeys, W Sziklai, J Taylor, C Turini, N Vacek, V Vítek, M Welti, J Whitmore, J Wyszkowski, P
description	The TOTEM collaboration has measured the proton-proton total cross section at √s=8 TeV using a luminosity-independent method. In LHC fills with dedicated beam optics, the Roman pots have been inserted very close to the beam allowing the detection of ~90% of the nuclear elastic scattering events. Simultaneously the inelastic scattering rate has been measured by the T1 and T2 telescopes. By applying the optical theorem, the total proton-proton cross section of (101.7±2.9) mb has been determined, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections: σ(el)=(27.1±1.4) mb; σ(inel)=(74.7±1.7) mb.
doi_str_mv	10.1103/PhysRevLett.111.012001
format	Article
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V</creatorcontrib><creatorcontrib>Vítek, M</creatorcontrib><creatorcontrib>Welti, J</creatorcontrib><creatorcontrib>Whitmore, J</creatorcontrib><creatorcontrib>Wyszkowski, P</creatorcontrib><creatorcontrib>TOTEM Collaboration</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Antchev, G</au><au>Aspell, P</au><au>Atanassov, I</au><au>Avati, V</au><au>Baechler, J</au><au>Berardi, V</au><au>Berretti, M</au><au>Bossini, E</au><au>Bottigli, U</au><au>Bozzo, M</au><au>Brücken, E</au><au>Buzzo, A</au><au>Cafagna, F S</au><au>Calicchio, M</au><au>Catanesi, M G</au><au>Covault, C</au><au>Csanád, M</au><au>Csörgő, T</au><au>Deile, M</au><au>Doubek, M</au><au>Eggert, K</au><au>Eremin, V</au><au>Ferretti, R</au><au>Ferro, F</au><au>Fiergolski, A</au><au>Garcia, F</au><au>Giani, S</au><au>Greco, V</au><au>Grzanka, L</au><au>Heino, J</au><au>Hilden, T</au><au>Intonti, R A</au><au>Kašpar, J</au><au>Kopal, J</au><au>Kundrát, V</au><au>Kurvinen, K</au><au>Lami, S</au><au>Latino, G</au><au>Lauhakangas, R</au><au>Leszko, T</au><au>Lippmaa, E</au><au>Lokajíček, M</au><au>Lo Vetere, M</au><au>Lucas Rodríguez, F</au><au>Macrí, M</au><au>Mäki, T</au><au>Mercadante, A</au><au>Minafra, N</au><au>Minutoli, S</au><au>Nemes, F</au><au>Niewiadomski, H</au><au>Oliveri, E</au><au>Oljemark, F</au><au>Orava, R</au><au>Oriunno, M</au><au>Österberg, K</au><au>Palazzi, P</au><au>Procházka, J</au><au>Quinto, M</au><au>Radermacher, E</au><au>Radicioni, E</au><au>Ravotti, F</au><au>Robutti, E</au><au>Ropelewski, L</au><au>Ruggiero, G</au><au>Saarikko, H</au><au>Santroni, A</au><au>Scribano, A</au><au>Smajek, J</au><au>Snoeys, W</au><au>Sziklai, J</au><au>Taylor, C</au><au>Turini, N</au><au>Vacek, V</au><au>Vítek, M</au><au>Welti, J</au><au>Whitmore, J</au><au>Wyszkowski, P</au><aucorp>TOTEM Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Luminosity-independent measurement of the proton-proton total cross section at √s=8 TeV</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2013-07-05</date><risdate>2013</risdate><volume>111</volume><issue>1</issue><spage>012001</spage><epage>012001</epage><pages>012001-012001</pages><artnum>012001</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>The TOTEM collaboration has measured the proton-proton total cross section at √s=8 TeV using a luminosity-independent method. In LHC fills with dedicated beam optics, the Roman pots have been inserted very close to the beam allowing the detection of ~90% of the nuclear elastic scattering events. Simultaneously the inelastic scattering rate has been measured by the T1 and T2 telescopes. By applying the optical theorem, the total proton-proton cross section of (101.7±2.9) mb has been determined, well in agreement with the extrapolation from lower energies. This method also allows one to derive the luminosity-independent elastic and inelastic cross sections: σ(el)=(27.1±1.4) mb; σ(inel)=(74.7±1.7) mb.</abstract><cop>United States</cop><pmid>23862993</pmid><doi>10.1103/PhysRevLett.111.012001</doi><tpages>1</tpages></addata></record>
fulltext	fulltext
identifier	ISSN: 0031-9007
ispartof	Physical review letters, 2013-07, Vol.111 (1), p.012001-012001, Article 012001
issn	0031-9007 1079-7114
language	eng
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source	American Physical Society Journals
title	Luminosity-independent measurement of the proton-proton total cross section at √s=8 TeV
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