Browsing by Author "Albrecht, Malte"
Now showing items 1-13 of 13
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Absolute measurements of branching fractions of Cabibbo-suppressed hadronic D0(+) decays involving multiple pions
Ablikim, M.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo; Cetin, Serkant Ali; Kolcu, Onur Buğra (AMER PHYSICAL SOC, 2022)By analyzing e(+)e(-) annihilation data with an integrated luminosity of 2.93 fb(-1) collected at the center-of-mass energy root s = 3.773 GeV with the BESIII detector, we present the first absolute measurements of the ... -
Evidence for a neutral near-threshold structure in the K S0 recoil-mass spectra in e+e- → K S0 Ds+ D∗- and e+e- → K S0 Ds∗+ D-
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)We study the processes e+e-→KS0Ds+D∗- and e+e-→KS0Ds∗+D-, as well as their charge conjugated processes, at five center-of-mass energies between 4.628 and 4.699 GeV, using data samples corresponding to an integrated luminosity ... -
First observation of the direct production of the χc1 in e+e- annihilation
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Ahmed, Shakeel; Albrecht, Malte (American Physical Society, 2022)We study the direct production of the JPC=1++ charmonium state χc1(1P) in electron-positron annihilation by carrying out an energy scan around the mass of the χc1(1P). The data were collected with the BESIII detector at ... -
Improved measurement of the strong-phase difference delta(K pi )(D)in quantum-correlated D(D)over-bar decays( )
Ablikim, M; Achasov, M. N; Adlarson, P.; Albrecht, Malte; Aliberti, R.; Cetin, Ali Serkant; Kolcu, Onur Buğra (SPRINGER, 2022)The decay D -> K-pi(+) is studied in a sample of quantum-correlated D (D) over bar pairs, based on a data set corresponding to an integrated luminosity of 2.93 fb(-1) collected at the psi(3770) resonance by the BESIII ... -
Measurement of branching fractions of singly cabibbo-suppressed decays Λc+ → ς0K+ and ς+ KS0
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)Based on a sample of 4.5 fb-1 of e+e- annihilation data collected in the energy region between 4.6 GeV and 4.7 GeV with the BESIII detector at BEPCII, two singly Cabibbo-suppressed decays Λc+→ς0K+ and Λc+→ς+KS0 are studied. ... -
Measurement of e+e- →π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)Using data samples collected with the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the e+e-→π+π-D+D- process at center-of-mass energies from 4.190 to 4.946 GeV with a partial ... -
Measurement of the absolute branching fraction and decay asymmetry of Λ→nγ
Ablikim, M; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Amoroso A.; Cetin, Serkant Ali; Kolcu, Onur Buğra (American Physical Society, 2022)The radiative hyperon decay Λ→nγ is studied using (10087±44)×10^{6} J/ψ events collected with the BESIII detector operating at BEPCII. The absolute branching fraction of the decay Λ→nγ is determined to be (0.832±0.038_{s ... -
Measurement of the absolute branching fraction of the singly cabibbo suppressed decay Λc+ →pη′
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)The singly Cabibbo suppressed decay Λc+→pη′ is measured using 4.5 fb-1 of e+e-collision data collected at center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII. Evidence for Λc+→pη′ with a ... -
Measurements of the center-of-mass energies of e+e-collisions at BESIII
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Ahmed, Shakeel; Albrecht, Malte; Kolcu, Onur Bugra (IOP Publishing, 2021)During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5 fb -1 of e+e- collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These data samples are primarily used for the study ... -
Observation of an ısoscalar resonance with exotic J^{PC}=1^{-+} quantum numbers in J/ψ→γηη^{'}
Ablikim, M.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Cetin, Serkant Ali; Kolcu, Onur Buğra (2022)Using a sample of (10.09±0.04)×10^{9} J/ψ events collected with the BESIII detector operating at the BEPCII storage ring, a partial wave analysis of the decay J/ψ→γηη^{'} is performed. The first observation of an isoscalar ... -
Observation of resonance structures in e^{+}e^{-}→π^{+}π^{-}ψ_{2}(3823) and mass measurement of ψ_{2}(3823)
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (NLM (Medline), 2022)Using a data sample corresponding to an integrated luminosity of 11.3 fb^{-1} collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we measure the product of the e^{+}e^{-}→π^{+}π^{-}ψ_{2}(3823) ... -
Observation of ηc (2S) →3 (π+π-) and measurements of χcJ →3 (π+π-) in ψ (3686) radiative transitions
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)The hadronic decay ηc(2S)→3(π+π-) is observed with a statistical significance of 9.3 standard deviations using (448.1±2.9)×106 ψ(3686) events collected by the BESIII detector at the BEPCII collider. The measured mass and ... -
Precise measurements of decay parameters and CP asymmetry with entangled Λ- Λ ¯ pairs
Ablikim, Medina N.; Achasov, M. N.; Adlarson, Patrik; Albrecht, Malte; Aliberti, Riccardo (American Physical Society, 2022)Based on 10 billion J/ψ events collected at the BESIII experiment, a search for CP violation in Λ decay is performed in the difference between CP-odd decay parameters α- for Λ→pπ- and α+ for Λ¯→p¯π+ by using the process ...
