C
Christos Kallidonis
Researcher at The Cyprus Institute
Publications - 55
Citations - 1430
Christos Kallidonis is an academic researcher from The Cyprus Institute. The author has contributed to research in topics: Pion & Nucleon. The author has an hindex of 16, co-authored 54 publications receiving 1231 citations. Previous affiliations of Christos Kallidonis include University of Cyprus & Stony Brook University.
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Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
Abdou Abdel-Rehim,Constantia Alexandrou,Martha Constantinou,Petros Dimopoulos,Roberto Frezzotti,Kyriakos Hadjiyiannakou,Karl Jansen,Christos Kallidonis,Bartosz Kostrzewa,Giannis Koutsou,M. Mangin-Brinet,M. Oehm,Giancarlo Rossi,Carsten Urbach,Urs Wenger +14 more
TL;DR: In this paper, the nucleon scalar, axial, and tensor charges as well as the momentum fraction and the helicity and transversity moments were computed using lattice QCD simulations at a physical value of the pion mass.
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Nucleon Spin and Momentum Decomposition Using Lattice QCD Simulations.
Constantia Alexandrou,Constantia Alexandrou,Martha Constantinou,Kyriakos Hadjiyiannakou,Karl Jansen,Christos Kallidonis,Giannis Koutsou,A. Vaquero Avilés-Casco,Christian Wiese +8 more
TL;DR: Within lattice QCD the nucleon spin carried by valence and sea quarks and gluons is determined using an ensemble of gauge configurations with two degenerate light quarks with mass fixed to approximately reproduce the physical pion mass.
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Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
Constantia Alexandrou,Constantia Alexandrou,Vincent Drach,Karl Jansen,Christos Kallidonis,Giannis Koutsou +5 more
TL;DR: In this paper, the masses of low-lying baryons are evaluated using a total of ten ensembles of dynamical twisted mass fermion gauge configurations, using two degenerate flavors of light quarks, and a strange and a charm quark fixed to approximately their physical values.
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Direct Evaluation of the Quark Content of Nucleons from Lattice QCD at the Physical Point.
Abdou Abdel-Rehim,Constantia Alexandrou,Constantia Alexandrou,Martha Constantinou,Kyriakos Hadjiyiannakou,Kyriakos Hadjiyiannakou,Karl Jansen,Christos Kallidonis,Giannis Koutsou,A. Vaquero Avilés-Casco +9 more
TL;DR: Improved techniques are used to evaluate the disconnected quark loops to sufficient accuracy to determine the strange and charm nucleon σ terms in addition to the light quark content σ_{πN}.
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Nucleon axial form factors using N f = 2 twisted mass fermions with a physical value of the pion mass
Constantia Alexandrou,Constantia Alexandrou,Martha Constantinou,Kyriakos Hadjiyiannakou,Karl Jansen,Christos Kallidonis,Giannis Koutsou,A. Vaquero Avilés-Casco +7 more
TL;DR: In this article, the authors present results on the nucleon axial and induced pseudoscalar form factors using an ensemble of two degenerate twisted mass clover-improved fermions with mass yielding a pion mass of