L I P

Laboratório de Instrumentação e Física Experimental de Partículas

L I P

L I P [PARTICLES AND TECHNOLOGY]

P&QCD

Participation in the COMPASS and AMBER experiments at CERN


// Structure of matter

Estrutura da matéria

COMPASS is a fixed target experiment at CERN using high energy muon and hadron beams to study the nucleon spin structure and hadron spectroscopy. During its first phase COMPASS achieved the world most direct and precise measurement of the gluon contribution to the nucleon spin. A second research programme started in 2012 and is now close to completion, devoted to the 3-dimensional characterization of the nucleon structure. An addendum to the COMPASS-II proposal was approved in 2018 by the CERN Research Board, for additional deep inelastic scattering (DIS) measurements using a transversely polarised deuteron target in 2021.

The LIP group joined COMPASS in 2003 and since then it has been involved in the main analyses of the Collaboration. The group has the sole responsibility for the Detector Control System (DCS), an area where it has a recognized unique expertise. The LIP group is also strongly involved in the preparation of a new CERN experiment, using the same beam line and parts of the COMPASS spectrometer, to address important quantum chromodynamics (QCD) topics.

// Research Area
Física Experimental de Partículas com aceleradores
Contacts
Group Leader:  
Catarina Quintans

quintans@lip.pt


 


  • Exotic meson π1(1600) with JPC = 1^{− +} and its decay into ρ(770)π
  • Author(s):  G.D. Alexeev et al (COMPASS Coll.)
  • Submission:  2021-08-06, Acceptance:  2021-09-08, Publication:  2022-01-12
  • Reference:  Phys.Rev. D 105, 012005 (2022)  

  • Probing transversity by measuring Lambda polarisation in SIDIS
  • Author(s):  G.D. Alexeev et al (COMPASS Coll.)
  • Submission:  2021-06-06, Acceptance:  2021-12-08, Publication:  2021-12-13
  • Reference:  Phys.Lett. B 824 (2022) 136834  

  • The large COMPASS polarized solid ammonia target for Drell–Yan measurements with a pion beam
  • Author(s):  V. Andrieux, C. Pires, C. Quintans et al
  • Submission:  2021-09-04, Acceptance:  2021-11-24, Publication:  2021-12-10
  • Reference:  NIM A 1025 (2022) 166069  

  • What are nucleons and pions made of?
  • Author(s):  Guilherme Almeida and Pedro Tomé
  • Submission:  , Acceptance:  , Publication:  2021-11-02
  • Reference:  LIP-STUDENTS-21-35   View publication

View all the group publications


  • ANTS
  •  Anger camera-type detector simulation and experimental data processing tools.
  •     website


View all the group publications



Catarina Corte-Real
Lisboa

Catarina Quintans
Lisboa

Christophe Pires
Lisboa

Frantisek Voldrich
Lisboa
External Collaborator

Guilherme Almeida
Lisboa

Márcia Quaresma
Lisboa
External Collaborator

Marcin Stolarski
Lisboa

Pietro Faccioli
Lisboa

Rita Silva
Lisboa

Sofia Nunes
Lisboa
External Collaborator


  • COMPASS/AMBER_Colaboração nas Experiências COMPASS e AMBER do CERN
  • Code:  CERN/FIS-PAR/0016/2021
  • Dates :  2021-10-01 :  2023-09-30
  • Funding:  165,000.00 €  

View all the group publications

 
 

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Laboratório de Instrumentação e Física Experimental de Partículas   LIP.PT

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