Research output: Contribution to journal › Article › peer-review
QCD with Chiral Chemical Vector: Models Versus Lattices. / Андрианов, Александр Андреевич; Андрианов, Владимир Андреевич; Путилова, Алёна Евгеньевна; Якубович, Александр Васильевич; Espriu, D.
In: Physics of Particles and Nuclei Letters, Vol. 15, No. 4, 07.2018, p. 357-361.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - QCD with Chiral Chemical Vector: Models Versus Lattices
AU - Андрианов, Александр Андреевич
AU - Андрианов, Владимир Андреевич
AU - Путилова, Алёна Евгеньевна
AU - Якубович, Александр Васильевич
AU - Espriu, D.
N1 - Funding Information: ACKNOWLEDGMENTS We thank the organizers of the 11th APCTP-BLTP JINR-PNPI NRC-SPbU Joint Workshop “Modern Problems in Nuclear and Elementary Particle Physics” Petergof, St.-Petersburg, 24–28 July 2017 for a fruitful meeting and an excellent atmosphere. A.A. and V.A. were supported by Grant RFBR projects 16-02-00348 and also got a financial support of SPbSU, in particular, by projects 11.41.417.2017, 11.42.697.2017, 11.42.698.2017, 11.41.1038.2017. As well this work has been supported through grants FPA2013-46570, 2014-SGR-104 and Consolider CPAN. Besides funding was provided by the Spanish MINECO under project MDM-2014-0369 of ICCUB (Unidad de Excelencia ‘Maria de Maeztu’).
PY - 2018/7
Y1 - 2018/7
N2 - A formation of Local Parity Breaking (LPB) in central heavy-ion collisions (HIC) at high energies is discussed. LPB in the fireball can be produced by a difference between the number densities of right- and left-handed chiral fermions (Chiral Imbalance) which is implemented by a chiral (axial) chemical potential. Based on the effective meson Lagrangian motivated by QCD in the chiral medium the properties of light scalar and pseudoscalar mesons (π, a 0) are analyzed. It is found that exotic decays of scalar mesons arise as a result of mixing of π and a 0 vacuum states in the presence of chiral imbalance. The pion electromagnetic formfactor obtains a parity-odd supplement which generates a photon polarization asymmetry in pion polarizability. We believe that the above-mentioned properties of LPB can be revealed in experiments on LHC, RHIC, CBM FAIR and NICA accelerators.
AB - A formation of Local Parity Breaking (LPB) in central heavy-ion collisions (HIC) at high energies is discussed. LPB in the fireball can be produced by a difference between the number densities of right- and left-handed chiral fermions (Chiral Imbalance) which is implemented by a chiral (axial) chemical potential. Based on the effective meson Lagrangian motivated by QCD in the chiral medium the properties of light scalar and pseudoscalar mesons (π, a 0) are analyzed. It is found that exotic decays of scalar mesons arise as a result of mixing of π and a 0 vacuum states in the presence of chiral imbalance. The pion electromagnetic formfactor obtains a parity-odd supplement which generates a photon polarization asymmetry in pion polarizability. We believe that the above-mentioned properties of LPB can be revealed in experiments on LHC, RHIC, CBM FAIR and NICA accelerators.
KW - chemical potential
KW - chiral imbalance
KW - chiral symmetry breaking
KW - quantum chromodynamics
KW - HEAVY-ION COLLISIONS
KW - AU COLLISIONS
KW - HOT
KW - VIOLATION
UR - http://www.scopus.com/inward/record.url?scp=85049559029&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/qcd-chiral-chemical-vector-models-versus-lattices
U2 - 10.1134/S1547477118040027
DO - 10.1134/S1547477118040027
M3 - Article
VL - 15
SP - 357
EP - 361
JO - Physics of Particles and Nuclei Letters
JF - Physics of Particles and Nuclei Letters
SN - 1547-4771
IS - 4
ER -
ID: 36487856