Study of D
                  sJ
                (*) +
               mesons decaying to D
                            ∗ +
                            K
                S
                0
               and D
                                *0
                            K
                            + final states

Aaij, R.; Beteta, C. Abellán; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Cartelle, P. Alvarez; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Gutierrez, O. Aquines; Archilli, F.; d’Argent, P.; Артамонов, А.; Artuso, M.; Aslanides, E.; Auriemma, G.; Baalouch, M.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Batozskaya, V.; Battista, V.; Bay, A.; Beaucourt, L.; Beddow, J.; Bedeschi, F.; Bediaga, I.; Bel, L. J.; Bellée, V.; Belloli, N.; Belyaev, I.; Ben-Haim, E.; Bencivenni, G.; Benson, S.; Benton, J.; Berezhnoy, A.; Bernet, R.; Bertolin, A.; Bettler, M. 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doi:10.1007/jhep02(2016)133

Cited by 17 publications

(5 citation statements)

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“…This represents the first measurement of a heavy flavored spin-3 particle, and the first observation of B meson decays to spin 3 particles. A subsequent study of D sJ mesons by the LHCb collaboration [1362] supports the natural parity assignment for this state (J P = 3 − ). This study also shows weak evidence for a further structure at a mass around 3040 MeV/c 2 with unnatural parity, which was first hinted at by a BABAR analysis [1359].…”

Section: Excited D (S) Mesonsmentioning

confidence: 63%

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Amhis,

Banerjee,

Ben-Haim

et al. 2019

Preprint

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159

354

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This paper reports world averages of measurements of b-hadron, c-hadron, and τ -lepton properties obtained by the Heavy Flavor Averaging Group using results available through September 2018. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabibbo-Kobayashi-Maskawa matrix elements.

show abstract

Section: Excited D (S) Mesonsmentioning

confidence: 63%

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Amhis,

Banerjee,

Ben-Haim

et al. 2019

Preprint

Self Cite

159

354

View full text Add to dashboard Cite

show abstract

“…This represents the first measurement of a heavy flavored spin-3 particle, and the first observation of B meson decays to spin 3 particles. A subsequent study of D sJ mesons by the LHCb collaboration [1227] supports the natural parity assignment for this state (J P = 3 − ). This study also shows weak evidence for a further structure at a mass around 3040 MeV/c 2 with unnatural parity, which was first hinted at by a BABAR analysis [1224].…”

Section: Modes Descriptionmentioning

confidence: 63%

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Amhis,

Banerjee,

Ben-Haim

et al. 2016

Preprint

Self Cite

219

408

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This article reports world averages of measurements of b-hadron, c-hadron, and τ -lepton properties obtained by the Heavy Flavor Averaging Group using results available through summer 2016. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabbibo-Kobayashi-Maskawa matrix elements. 10 Summary 11 Acknowledgments References 3.2.5 B + c lifetime Early measurements of the B + c meson lifetime, from CDF [132, 133] and D0 [134], use the semileptonic decay mode B + c → J/ψ + ν and are based on a simultaneous fit to the mass and lifetime using the vertex formed with the leptons from the decay of the J/ψ and the third lepton. Correction factors to estimate the boost due to the missing neutrino are used. Correlated systematic errors include the impact of the uncertainty of the B + c p T spectrum on the correction factors, the level of feed-down from ψ(2S) decays, Monte Carlo modeling of the decay model varying from phase space to the ISGW model, and mass variations. With more statistics, CDF2 was able to perform the first B + c lifetime based on fully reconstructed B + c → J/ψπ + decays [135], which does not suffer from a missing neutrino. Recent measurements from LHCb, both with B + c → J/ψ µ + ν [136] and B + c → J/ψ π + [137] decays, achieve the highest level of precision. All the measurements are summarized in Table 11 and the world average, dominated by the LHCb measurements, is determined to be τ (B + c ) = 0.507 ± 0.009 ps . (46) 3.2.6 Λ 0 b and b-baryon lifetimes The first measurements of b-baryon lifetimes, performed at LEP, originate from two classes of partially reconstructed decays. In the first class, decays with an exclusively reconstructed Λ + c baryon and a lepton of opposite charge are used. These products are more likely to occur in Measurements of B −c decays to charmed hadrons are summarized in Sections 6.5.1 to 6.5.2. Since the absolute cross-section for B − c meson production in any production environment is currently not known, it is not possible to determine absolute branching fractions. Instead, results are presented either as ratios of branching fractions of different B − c decays, or are normalised to the branching fraction of the decay of a lighter B meson (usually B − ). In the latter case the measured quantity is the absolute or relative B − c branching fraction multiplied by the ratio of cross-sections (or, equivalently, production fractions) of the B − c and the lighter B meson. It should be noted that the ratio of cross-sections for different b hadron species can depend on production environment, and on the fiducial region accessed by each experiment. While this has been studied for certain b hadron species (see Sec. 3.1), there is currently little published data that would allow to investigate the effect for B − c mesons. Therefore, ...

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“…This represents the first measurement of a heavy flavored spin-3 particle, and the first observation of B meson decays to spin 3 particles. A subsequent study of D s J mesons by the LHCb collaboration [1241] supports the natural parity assignment for this state (J P = 3 − ). This study also shows weak evidence for a further structure at a mass around 3040 MeV/c 2 with unnatural parity, which was first hinted at by a BaBar analysis [1238].…”

Section: Argus [1266]mentioning

confidence: 91%

“…[1238]+ [1241] 8.9 Excited D (s) mesons Excited charm meson states have received increased attention since the first observation of states that could not be accommodated by QCD predictions [1224][1225][1226][1227]. Tables 289, 290 and 291 summarize recent measurements of the masses and widths of excited D and D s mesons, respectively.…”

Section: Average Branching Fractionsmentioning

confidence: 99%

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

et al. 2017

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This paper reports world averages of measurements of b-hadron, c-hadron, and τ -lepton properties obtained by the Heavy Flavour Averaging Group using results available before April 2021. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabibbo-Kobayashi-Maskawa matrix elements. Selected world averages -continued from previous page. ∆Γ d /Γ d 0.001 ± 0.010 |q d /p d | 1.0010 ± 0.0008 ∆m s 17.765 ± 0.006 ps −1 ∆Γ s +0.084 ± 0.005 ps −1 |q s /p s | 1.0003 ± 0.0014 φ ccs s −0.049 ± 0.019 rad Unitarity-Triangle angle parameters sin2β ≡ sin2φ 1 0.699 ± 0.017 β ≡ φ 1 (22.2 ± 0.7) • −ηS φK 0 S 0.74 +0.11 −0.13 −ηS η K 0 0.63 ± 0.06 −ηS K 0 S K 0 S K 0 S 0.83 ± 0.17 φ s (φφ) −0.073 ± 0.115 ± 0.027 rad S B 0 s →K + K − , C B 0 s →K + K − (0.14 ± 0.03, 0.17 ± 0.03) −ηS J/ψ π 0 0.86 ± 0.14 −ηS D + D − 0.84 ± 0.12 −ηS J/ψ ρ 0 0.66 +0.13 −0.12 +0.09 −0.03(0.343 ± 0.002)% τ parameters, lepton universality, and |V us | g τ /g µ 1.0009 ± 0.0014 g τ /g e 1.0027 ± 0.0014 g µ /g e 1.0019 ± 0.0014* )0 s B ( * )0 s ) = (87.0 ± 1.7)% [34] measured as described in Ref. [35]. The proportions of the various production channels for non-strange B mesons have also been measured [22]. 4.3 b-hadron production fractions at high energy At high energy, all species of weakly decaying b hadrons may be produced, either directly or in strong and electromagnetic decays of excited b hadrons. Before 2010, it was assumed that the fractions of different species in unbiased samples of high-p T b-hadron jets where independent of whether they originated from Z decays, pp collisions at the Tevatron, or pp collisions at the LHC. This hypothesis was plausible under the condition Q 2 Λ 2 QCD , namely, that the square of the momentum transfer to the produced b quarks is large compared with the square of the hadronization energy scale. This hypothesis is correct in the limit p T → ∞, in which the production mechanism of a b hadron is completely described by the fragmentation of the b quark. For finite p T , however, there are interference effects of the production mechanism of the b quark and its hadronization. While formally suppressed by inverse powers of p T , these effects may be sizable, especially when the fragmentation probabilities are small as, e.g., in the case of b baryons. In fact, the available data show that the fractions depend on the kinematics of the produced b hadron. Both CDF and LHCb reported a p T dependence of the fractions, with the fraction of Λ 0 b baryons observed at low p T being enhanced with respect to that seen at LEP at higher p T . In our previous publication [1], we presented two sets of averages, one including only measurements performed at LEP, and another including only measurements performed ...

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Study of D sJ () + mesons decaying to D ∗ + K S 0 and D 0 K + final states

Abstract: A search is performed for D ( * )+ sJ mesons in the reactions pp → D * + K 0 S X and pp → D * 0 K + X using data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. For the D * + K 0 S final state, the decays

Cited by 17 publications

References 17 publications

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

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Study of D sJ (*) + mesons decaying to D ∗ + K S 0 and D *0 K + final states

Abstract: A search is performed for D ( * )+ sJ mesons in the reactions pp → D * + K 0 S X and pp → D * 0 K + X using data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. For the D * + K 0 S final state, the decays

Cited by 17 publications

References 17 publications

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of 2018

Averages of $b$-hadron, $c$-hadron, and $τ$-lepton properties as of summer 2016

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

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Study of D sJ () + mesons decaying to D ∗ + K S 0 and D 0 K + final states