Elastic differential cross-section d σ/ d t at √s=2.76TeV and implications on the existence of a colourless C-odd three-gluon compound state
- Antchev G.
- Aspell P.
- Atanassov I.
- Avati V.
- Baechler J.
- Barrera C. B.
- Berardi V.
- Berretti M.
- Bossini E.
- Bottigli U.
- Bozzo M.
- Burkhardt H.
- Cafagna F. S.
- Catanesi M. G.
- Csanad M.
- Csorgo T.
- Deile M.
- De Leonardis F.
- Doubek M.
- Druzhkin D.
- Eggert K.
- Eremin V.
- Ferro F.
- Fiergolski A.
- Garcia F.
- Georgiev V.
- Giani S.
- Grzanka L.
- Hammerbauer J.
- Ivanchenko V.
- Kaspar J.
- Kopal J.
- Kundrat V.
- Lami S.
- Latino G.
- Lauhakangas R.
- Lindsey C.
- Lokajicek M. V.
- Losurdo L.
- Vetere M. L.
- Rodriguez F. L.
- Macri M.
- Malawski M.
- Minafra N.
- Minutoli S.
- Naaranoja T.
- Nemes F.
- Niewiadomski H.
- Novak T.
- Oliveri E.
- Oljemark F.
- Oriunno M.
- Osterberg K.
- Palazzi P.
- Passaro V.
- Peroutka Z.
- Prochazka J.
- Quinto M.
- Radermacher E.
- Radicioni E.
- Ravotti F.
- Robutti E.
- Royon C.
- Ruggiero G.
- Saarikko H.
- Scribano A.
- Smajek J.
- Snoeys W.
- Sziklai J.
- Taylor C.
- Tcherniaev E.
- Turini N.
- Vacek V.
- Welti J.
- Williams J.
DOIAbstract
The proton–proton elastic differential cross section d σ/ d t has been measured by the TOTEM experiment at s=2.76TeV energy with β∗=11m beam optics. The Roman Pots were inserted to 13 times the transverse beam size from the beam, which allowed to measure the differential cross-section of elastic scattering in a range of the squared four-momentum transfer (|t|) from 0.36 to 0.74GeV2. The differential cross-section can be described with an exponential in the |t|-range between 0.36 and 0.54GeV2, followed by a diffractive minimum (dip) at |tdip|=(0.61±0.03)GeV2 and a subsequent maximum (bump). The ratio of the d σ/ d t at the bump and at the dip is 1.7 ± 0.2. When compared to the proton–antiproton measurement of the D0 experiment at s=1.96TeV, ...
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