Preprints

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2018-08-08
17:48
OpenAccess [PUBDB-2018-02862] Preprint/Report
; ; ; et al
Measurement of the branching fraction of $B → D ^{(*)} π ℓ ν$ at Belle using hadronic tagging in fully reconstructed events
[Belle preprint 2018-03; KEK Preprint 2017-67; arXiv:1803.06444]
 GO
We report a measurement of the branching fraction of the decay $B \rightarrow D^{(*)}\pi \ell\nu$. The analysis uses 772$\times 10^6$ $B\bar{B}$ pairs produced in $e^+e^-\rightarrow \Upsilon(4S)$ data recorded by the Belle experiment at the KEKB asymmetric-energy $e^+e^-$ collider. [...]
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2018-08-08
17:34
OpenAccess [PUBDB-2018-02861] Preprint/Report
; ; ; et al
Inclusive study of bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near $\Upsilon(5S)$
[Belle Preprint 2018-01; KEK Preprint 2017-60;arXiv:1803.03225]
 GO
We study bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near the $\Upsilon(5S)$, at a center of mass energy of $\sqrt{s}=10.866\,$GeV. The results are based on the $121.4\,$fb$^{-1}$ data sample collected by the Belle experiment at the asymmetric energy KEKB collider. [...]
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2018-08-08
17:26
OpenAccess [PUBDB-2018-02860] Preprint/Report
; ; ; et al
Measurement of the Decays $\Lambda_c\to \Sigma\pi\pi$ at Belle
[BELLE Preprint 2017-26; KEK Preprint 2017-39; arXiv:1802.03421]
 GO
We report measurements of the branching fractions of the decays $\Lambda^+_c\to\Sigma^+\pi^-\pi^+$, $\Lambda^+_c\to\Sigma^0\pi^+\pi^0$ and $\Lambda^+_c\to\Sigma^+\pi^0\pi^0$ relative to the reference channel $\Lambda^+_c\to pK^-\pi^+$. The analysis is based on the full data sample collected at and close to $\Upsilon(4S)$ resonance by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider corresponding to the integrated luminosity of 711 fb$^{-1}$. [...]
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2018-08-08
16:32
OpenAccess [PUBDB-2018-02858] Preprint/Report
; ; ; et al
Measurement of time-dependent $CP$ asymmetries in $B^{0}\to K_S^0 \eta \gamma$ decays
[BELLE-PREPRINT-2018-07; KEK-PREPRINT-2018-1; arXiv:1803.07774 ]
 GO
We report a measurement of time-dependent $CP$ violation parameters in $B^0 → K^0_S ηγ$ decays. The study is based on a data sample, containing $772 × 10^6 B\bar{B}$ pairs, that was collected at the $Υ(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^−$ collider [...]
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2018-07-13
09:12
arXiv [PUBDB-2018-02595] Preprint/Report
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Testing the event-chain algorithm in asymptotically free models
[DESY-18-090; arXiv:1806.11460]
We apply the event-chain algorithm proposed by Bernard, Krauth and Wilson in 2009 to toy models of lattice QCD. We give a formal prove of stability of the algorithm. [...]

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2018-07-12
13:51
OpenAccess [PUBDB-2018-02585] Preprint/Report
; ; ; et al
Search for supersymmetry in events with a $\tau$ lepton pair and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
[CMS-SUS-17-003; CERN-EP-2018-149; arXiv:1807.02048]
 GO
A search for the electroweak production of supersymmetric particles in proton-proton collisions at a center-of-mass energy of 13 TeV is presented in final states with a $\tau$ lepton pair. Both hadronic and leptonic decay modes are considered for the $\tau$ leptons. [...]
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2018-07-06
10:20
OpenAccess [PUBDB-2018-02538] Preprint/Report
; ;
On the separation of variables for the modular XXZ magnet and the lattice Sinh-Gordon models
[DESY-18-088; arXiv:1806.04487]
 GO
We construct the generalised Eigenfunctions of the entries of the monodromy matrix of the $N$-site modular XXZ magnet and show, in each case, that these form a complete orthogonal system in $L^2(\mathbb{R}^N)$. In particular, we develop a new and simple technique, allowing one to prove the completeness of such systems. [...]
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2018-07-06
10:15
arXiv [PUBDB-2018-02537] Preprint/Report
; ; ; et al
Employing RHIC and LHC data to determine TMD gluon density in a proton
[DESY-18-094; arXiv:1806.06739]
Transverse momentum dependent (TMD) parton distributions in a proton are important in high energy physics from both theoretical and phenomenological points of view. Using the latest RHIC and LHC data on the inclusive soft hadron production in $pp$ and $AA$ collisions at small transverse momenta, we determine the parameters of the initial TMD gluon density, derived in the framework of quark-gluon string model at the low scale $\mu_0 \sim 1 - 2$ GeV and refine its large-$x$ behaviour using the LHC data on the $t \bar t$ production at $\sqrt s = 13$ TeV. [...]
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2018-07-03
12:23
OpenAccess [PUBDB-2018-02511] Preprint/Report
; ; ; et al
Measurement of b hadron lifetimes in pp collisions at $\sqrt{s}$ = 8 TeV
[CMS-BPH-13-008; CERN-EP-2017-244; arXiv:1710.08949]
 GO
Measurements are presented of the lifetimes of the B$^0$, B$^0_\mathrm{s}$, $\Lambda^0_\mathrm{b}$, and B$_\mathrm{c}^+$ hadrons using the decay channels B$^0\to$ J/$\psi$K*(892)$^0$, B$^0\to$J/$\psi$K$^0_\mathrm{S}$, B$^0_\mathrm{s}\to$J/$\psi \pi^+\pi^-$, B$^0_\mathrm{s}\to$J/$\psi\phi$(1020), $\Lambda^0_\mathrm{b}\to$J/$\psi\Lambda^0$, and B$_\mathrm{c}\to$J/$\psi\pi^+$. The data sample, corresponding to an integrated luminosity of 19.7 fb$^{-1}$, was collected by the CMS detector at the LHC in proton-proton collisions at $\sqrt{s}=$ 8 TeV. [...]
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ddc:530
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2018-06-28
09:59
OpenAccess [PUBDB-2018-02415] Preprint/Report
; ; ; et al
Search for a singly produced third-generation scalar leptoquark decaying to a $\tau$ lepton and a bottom quark in proton-proton collisions at $\sqrt{s} =$ 13 TeV
[CMS-EXO-17-029; CERN-EP-2018-136; arXiv:1806.03472]
 GO
A search is presented for a singly produced third-generation scalar leptoquark decaying to a $\tau$ lepton and a bottom quark. Associated production of a leptoquark and a $\tau$ lepton is considered, leading to a final state with a bottom quark and two $\tau$ leptons. [...]
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