scholarly journals Feasibility Studies for Single Transverse-Spin Asymmetry Measurements at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)

2017 ◽  
Vol 58 (4) ◽  
Author(s):  
Daniel Kikoła ◽  
Miguel García Echevarria ◽  
Cynthia Hadjidakis ◽  
Jean-Philippe Lansberg ◽  
Cédric Lorcé ◽  
...  
Keyword(s):  
Spin Asymmetry ◽  
Feasibility Studies ◽  
Transverse Spin ◽  
Fixed Target ◽  
Target Experiment ◽  
Fixed Target Experiment

scholarly journals Feasibility Studies for Quarkonium Production at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
L. Massacrier ◽  
B. Trzeciak ◽  
F. Fleuret ◽  
C. Hadjidakis ◽  
D. Kikola ◽  
...  
Keyword(s):  
Feasibility Studies ◽  
Fixed Target ◽  
Detection Techniques ◽  
Target Mode ◽  
Quarkonium Production ◽  
Target Experiment ◽  
Conventional Detection ◽  
Fixed Target Experiment

Being used in the fixed-target mode, the multi-TeV LHC proton and lead beams allow for studies of heavy-flavour hadroproduction with unprecedented precision at backward rapidities, far negative Feynman-x, using conventional detection techniques. At the nominal LHC energies, quarkonia can be studied in detail inp+p,p+d, andp+Acollisions atsNN≃115 GeV and in Pb +pand Pb +Acollisions atsNN≃72 GeV with luminosities roughly equivalent to that of the collider mode that is up to 20 fb−1 yr−1inp+pandp+dcollisions, up to 0.6 fb−1 yr−1inp+Acollisions, and up to 10 nb−1 yr−1in Pb +Acollisions. In this paper, we assess the feasibility of such studies by performing fast simulations using the performance of a LHCb-like detector.

COMPASS RESULTS ON TMD OBSERVABLES

2012 ◽  
Vol 20 ◽  
pp. 9-18
Author(s):  
◽  
ANNA MARTIN
Keyword(s):  
Transverse Momentum ◽  
Inelastic Scattering ◽  
Deep Inelastic Scattering ◽  
Muon Beam ◽  
Transverse Spin ◽  
Scientific Program ◽  
Fixed Target ◽  
Transverse Structure ◽  
Target Experiment ◽  
Fixed Target Experiment

The study of the transverse spin and transverse momentum structure of the nucleon is an important part of the scientific program of COMPASS, a fixed target experiment taking data at the CERN SPS since 2002. In these ten years COMPASS has produced a number of interesting results by measuring the forward going hadrons produced in deep inelastic scattering of a 160 GeV muon beam off polarized deuteron and proton targets. The COMPASS contribution to the understanding of the transverse structure of the nucleon, and the possible future contributions, are briefly reviewed here.

scholarly journals Studies of Transverse-Momentum-Dependent Distributions with a Fixed-Target ExpeRiment Using the LHC Beams (AFTER@LHC)

2016 ◽  
Vol 40 ◽  
pp. 1660107 ◽  
Author(s):  
L. Massacrier ◽  
M. Anselmino ◽  
R. Arnaldi ◽  
S. J. Brodsky ◽  
V. Chambert ◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Nuclear Physics ◽  
Transverse Spin ◽  
Fixed Target ◽  
Transverse Momentum Dependent ◽  
Spin Asymmetries ◽  
Bent Crystal ◽  
Target Mode ◽  
Target Experiment ◽  
Fixed Target Experiment

We report on the studies of Transverse-Momentum-Dependent distributions (TMDs) at a future fixed-target experiment –AFTER@LHC– using the [Formula: see text] or Pb ion LHC beams, which would be the most energetic fixed-target experiment ever performed. AFTER@LHC opens new domains of particle and nuclear physics by complementing collider-mode experiments, in particular those of RHIC and the EIC projects. Both with an extracted beam by a bent crystal or with an internal gas target, the luminosity achieved by AFTER@LHC surpasses that of RHIC by up to 3 orders of magnitude. With an unpolarised target, it allows for measurements of TMDs such as the Boer-Mulders quark distributions and the distribution of unpolarised and linearly polarised gluons in unpolarised protons. Using polarised targets, one can access the quark and gluon Sivers TMDs through single transverse-spin asymmetries in Drell-Yan and quarkonium production. In terms of kinematics, the fixed-target mode combined with a detector covering [Formula: see text] allows one to measure these asymmetries at large [Formula: see text] in the polarised nucleon.

scholarly journals Spin physics at a fixed-target experiment at the LHC (AFTER@LHC)

2014 ◽  
Vol 45 (1) ◽  
pp. 336-337 ◽  
Author(s):  
A. Rakotozafindrabe ◽  
M. Anselmino ◽  
R. Arnaldi ◽  
S. J. Brodsky ◽  
V. Chambert ◽  
...  
Keyword(s):  
Fixed Target ◽  
Spin Physics ◽  
Target Experiment ◽  
Fixed Target Experiment

scholarly journals Prospective for A Fixed-Target ExpeRiment at the LHC: AFTER @ LHC

2013 ◽  
Author(s):  
Jean-Philippe Lansberg ◽  
Valérie Chambert ◽  
Jean-Pierre Didelez ◽  
Bernard Genolini ◽  
Cynthia Hadjidakis ◽  
...  
Keyword(s):  
Fixed Target ◽  
Target Experiment ◽  
Fixed Target Experiment

scholarly journals Prospective for a fixed-target experiment at the LHC: AFTER @ LHC

2012 ◽  
Author(s):  
Jean-Philippe Lansberg ◽  
Valérie Chambert ◽  
Jean-Pierre Didelez ◽  
Bernard Genolini ◽  
Cynthia Hadjidakis ◽  
...  
Keyword(s):  
Fixed Target ◽  
Target Experiment ◽  
Fixed Target Experiment

scholarly journals News from the NA61/SHINE experiment

2018 ◽  
Vol 191 ◽  
pp. 05002 ◽  
Author(s):  
Evgeny Andronov
Keyword(s):  
Critical Point ◽  
Collision Energy ◽  
Hadron Production ◽  
Fixed Target ◽  
Proton Proton ◽  
Model Predictions ◽  
The Status ◽  
Target Experiment ◽  
Onset Of Deconfinement ◽  
Fixed Target Experiment

NA61/SHINE is a fixed target experiment operating at the CERN SPS. Its main goals are to search for the critical point of strongly interacting matter and to study the onset of deconfinement. For these goals a scan of the two dimensional phase diagram (T-μB) is being performed at the SPS by measurements of hadron production in proton-proton, proton-nucleus and nucleusnucleus interactions as a function of collision energy. In this paper the status of the NA61/SHINE strong interaction physics programme is presented including recent results on proton intermittency, strongly intensive fluctuation observables of multiplicity and transverse momentum fluctuations. These measurements are expected to be sensitive to the correlation length in the produced matter and, therefore, have the ability to reveal the existence of the critical point via possible non-monotonic behavior. The NA61/SHINE results are compared to the model predictions.

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