Yayıncı "American Physical Society" için listeleme
Toplam kayıt 64, listelenen: 41-60
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Phase-dependent interference fringes in the wavelenght scaling of harmonic efficiency
(American Physical Society, 2014)We describe phase-dependent wavelength scaling of high-order harmonic generation efficiency driven by ultra-short laser fields in the mid-infrared. We employ both numerical solution of the time-dependent Schr¨odinger ... -
Precise Measurement of the e+e- ??+?-J /? Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
(American Physical Society, 2017)The cross section for the process e+e-??+?-J/? is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9 fb-1 of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant ... -
Precision measurement of the D?0 decay branching fractions
(American Physical Society, 2015)Using 482 pb-1 of data taken at s=4.009 GeV, we measure the branching fractions of the decays of D?0 into D0?0 and D0? to be B(D?0?D0?0)=(65.5±0.8±0.5)% and B(D?0?D0?)=(34.5±0.8±0.5)%, respectively, by assuming that the ... -
Precision Study of eta ' -> gamma pi(+) pi(-) Decay Dynamics
(American Physical Society, 2018)Using a low background data sample of 9.7×105 J/?????, ?????+?- events, which are 2 orders of magnitude larger than those from the previous experiments, recorded with the BESIII detector at BEPCII, the decay dynamics of ... -
Search for a massless dark photon in Λc+ →pγ′ decay
(American Physical Society, 2022)A search for a massless dark photon γ′ is conducted 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. No significant signal is observed, ... -
Search for D0 ??? and improved measurement of the branching fraction for D0 ??0?0
(American Physical Society, 2015)Using 2.92 fb-1 of electron-positron annihilation data collected at ?s = 3.773 GeV with the BESIII detector, we report the results of a search for the flavor-changing neutral current process D0 ??? using a double-tag ... -
Search for hc ??+?-J /? via ? (3686) ??0?+?-J /?
(American Physical Society, 2018)Using a data sample of 448.1×106 ?(3686) events collected with the BESIII detector operating at the BEPCII, we perform search for the hadronic transition hc??+?-J/? via ?(3686)??0hc. No signals of the transition are observed, ... -
Search for rare decay J /? ??e+e-
(American Physical Society, 2019)Using a data sample of 448.1×106 ?(3686) events collected at s=3.686 GeV with the BESIII detector at the Beijing Electron-Positron Collider II, we search for the rare decay J/???e+e- via ?(3686)??+?-J/?. No signal events ... -
Search for the decay D-s(+) -> p(p)over-bare(+) nu(e)
(American Physical Society, 2019)Using a 3.19 fb-1 data sample collected at the s=4.178 GeV with the BESIII detector, we search for the rare decay Ds+→ppe+νe. No significant signal is observed, and an upper limit of B(Ds+→ppe+νe)<2.0×10-4 is set at the ... -
Search for the isospin violating decay Y(4260)-> J/psi eta pi(0)
(American Physical Society, 2015)Using data samples collected at center-of-mass energies of ?s= 4.009, 4.226, 4.257, 4.358, 4.416, and 4.599 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the isospin violating decay Y(4260) ... -
Search for the weak decays J/? ? D(?)- s e+?e + c.c
(American Physical Society, 2014)Using a sample of 2.25 × 108 J/? events collected with the BESIII detector at the BEPCII collider, we search for the J/? semileptonic weak decay J/? ? D-s e+?e+ c.c. with a much higher sensitivity than previous searches. ... -
Search for the y (4140) via e+e- ???J /? at s =4.23, 4.26 and 4.36 GeV
(American Physical Society, 2015)Using data samples collected at center-of-mass energies s=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a ... -
Search for Z(c)(3900)(+/-) -> omega pi(+/-)
(American Physical Society, 2015)The decay Zc(3900)±???± is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is ... -
Searches for isospin-violating transitions χc0,2 → π0ηc
(American Physical Society, 2015)We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions χc0,2 → π0ηc. The measurements are performed using 106×106ψ(3686) events accumulated with the BESIII detector at ... -
Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD
(American Physical Society, 2018)Using a data sample of (448.1±2.9)×106 ?(3686) events collected with the BESIII detector at the BEPCII collider, we present measurements of branching fractions for the decays ?cJ??+?- and ?0?0. The decays ?c1,2??+?- and ... -
Study of ?cJ decaying into K? (892) K ¯
(American Physical Society, 2015)Using a data sample of 106 million ?(3686) events collected with the BESIII detector operated at the BEPCII storage ring, we study for the first time the decays ?cJ??KS0K±?? and ?cJ??K+K-?0 in the E1 radiative transition ... -
Study of decay dynamics and CP asymmetry in D+ ? KL0 e+?e decay
(American Physical Society, 2015)Using 2.92 fb-1 of electron-positron annihilation data collected at s=3.773 GeV with the BESIII detector, we obtain the first measurements of the absolute branching fraction B(D+?KL0e+?e)=(4.481±0.027(stat)±0.103(sys))% ... -
Study of dynamics of D0 ?k-e+?e and D0 ??-e+?e decays
(American Physical Society, 2015)In an analysis of a 2.92 fb-1 data sample taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we measure the absolute decay branching fractions B(D0?K-e+?e)=(3.505±0.014±0.033)% and B(D0??-e+?e)= ... -
Study of e+e- ???cJ at center of mass energies from 4.21 to 4.42 GeV
(American Physical Society, 2015)Based on data samples collected with the BESIII detector at the BEPCII collider at nine center of mass energies from 4.21 to 4.42 GeV, we search for the production of e+e-???cJ (J=0, 1, 2). The process e+e-???c0 is observed ... -
Study of e+e- →π+π-π0ηc and evidence for Zc (3900)± decaying into ρ±ηc STUDY of e+e- →π+π-π0ηc ... M. ABLIKIM et al.
(American Physical Society, 2019)We study the reaction e+e-→π+π-π0ηc for the first time using data samples collected with the BESIII detector at center-of-mass energies s=4.226, 4.258, 4.358, 4.416, and 4.600 GeV. Evidence of this process is found and the ...