Elastic differential cross-section dσ/dt at √s = 2.76 TeV and implications on the existence of a colourless C-odd three-gluon compound state

0538802 - FZÚ 2021 RIV US eng J - Článek v odborném periodiku
Antchev, G. - Aspell, P. - Atanassov, I. - Kašpar, Jan - Kundrát, Vojtěch - Lokajíček, Miloš V. … celkem 75 autorů
Elastic differential cross-section dσ/dt at √s = 2.76 TeV and implications on the existence of a colourless C-odd three-gluon compound state.
European Physical Journal C. Roč. 80, č. 2 (2020), s. 1-10, č. článku 91. ISSN 1434-6044. E-ISSN 1434-6052
Grant CEP: GA MŠMT(CZ) LTT17018
Výzkumná infrastruktura: CERN-CZ II - 90104
Institucionální podpora: RVO:68378271
Klíčová slova: bound state: exchange * beam: size * dip * TOTEM
Obor OECD: Particles and field physics
Impakt faktor: 4.590, rok: 2020
Způsob publikování: Open access

The proton–proton elastic differential cross section dσ/dt{mathrm{d}}sigma /{mathrm{d}}tdσ/dt has been measured by the TOTEM experiment at sqrt{s}=2.76hbox { TeV} energy with eta ^{*}=11hbox { m} 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 0.74hbox { GeV}^{2}. The differential cross-section can be described with an exponential in the |t|-range between 0.36 and 0.54hbox { GeV}^{2}, followed by a diffractive minimum (dip) at |t_{mathrm{dip}}|=(0.61pm 0.03)hbox { GeV}^{2} and a subsequent maximum (bump).

Trvalý link: http://hdl.handle.net/11104/0316522