Semileptonic decays D →π+π-e+νe and Ds →π+π-e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons

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Semileptonic decays D →π+π-e+νe and Ds →π+π-e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons. / Achasov, N. N.; Kiselev, A. V.; Shestakov, G. N.

In: Physical Review D, Vol. 102, No. 1, 016022, 01.07.2020.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{c25d8efbfcc1472e8ac95eff7e8d2327,

title = "Semileptonic decays D →π+π-e+νe and Ds →π+π-e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons",

abstract = "Decays D→π+π-e+νe and Ds→π+π-e+νe serve as probes that check the existence of constituent qq components in the wave functions of scalar mesons decaying into π+π-. There exists a great deal of concrete evidence in favor of the exotic four-quark nature of light scalars. At the same time, the further expansion of the area of the q2q2 model validity for light scalars on ever new processes seems extremely interesting and important. We analyze the BESIII and CLEO data on the decays D+→π+π-e+νe and Ds+→π+π-e+νe and show that the results of these experiments together can be interpreted in favor of the four-quark nature of light scalar mesons σ(500) and f0(980). Our approach can also be applied to the description of other similar decays involving light scalars.",

keywords = "MULTIQUARK HADRONS",

author = "Achasov, {N. N.} and Kiselev, {A. V.} and Shestakov, {G. N.}",

year = "2020",

month = jul,

day = "1",

doi = "10.1103/PhysRevD.102.016022",

language = "English",

volume = "102",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "1",

}

RIS

TY - JOUR

T1 - Semileptonic decays D →π+π-e+νe and Ds →π+π-e+νe as the probe of constituent quark-antiquark pairs in the light scalar mesons

AU - Achasov, N. N.

AU - Kiselev, A. V.

AU - Shestakov, G. N.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - Decays D→π+π-e+νe and Ds→π+π-e+νe serve as probes that check the existence of constituent qq components in the wave functions of scalar mesons decaying into π+π-. There exists a great deal of concrete evidence in favor of the exotic four-quark nature of light scalars. At the same time, the further expansion of the area of the q2q2 model validity for light scalars on ever new processes seems extremely interesting and important. We analyze the BESIII and CLEO data on the decays D+→π+π-e+νe and Ds+→π+π-e+νe and show that the results of these experiments together can be interpreted in favor of the four-quark nature of light scalar mesons σ(500) and f0(980). Our approach can also be applied to the description of other similar decays involving light scalars.

AB - Decays D→π+π-e+νe and Ds→π+π-e+νe serve as probes that check the existence of constituent qq components in the wave functions of scalar mesons decaying into π+π-. There exists a great deal of concrete evidence in favor of the exotic four-quark nature of light scalars. At the same time, the further expansion of the area of the q2q2 model validity for light scalars on ever new processes seems extremely interesting and important. We analyze the BESIII and CLEO data on the decays D+→π+π-e+νe and Ds+→π+π-e+νe and show that the results of these experiments together can be interpreted in favor of the four-quark nature of light scalar mesons σ(500) and f0(980). Our approach can also be applied to the description of other similar decays involving light scalars.

KW - MULTIQUARK HADRONS

UR - http://www.scopus.com/inward/record.url?scp=85092731158&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.102.016022

DO - 10.1103/PhysRevD.102.016022

M3 - Article

AN - SCOPUS:85092731158

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - 016022

ER -

ID: 25676400