W. Krzemień

activity

20082026

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 19.6k across the 441 of their papers we have counts for

collaborators

Showing 2017Show all

41 papers · 1 filter

hep-ex2017★ 19 cited

Amplitude analysis of the decay $B^{0} \to K_{S}^{0} π^{+} π^{-}$ and first observation of the CP asymmetry in $B^{0} \to K^{*} (892)^{-} π^{+}$

LHCb collaboration, R. Aaij, B. Adeva +794

The time-integrated Dalitz plot of the three-body hadronic charmless decay $B^{0} \to K_{S}^{0} π^{+} π^{-}$ is studied using a $pp$ collision data…

hep-ex2017★ 15 cited

Search for $B_{c}^{+}$ decays to two charm mesons

LHCb collaboration, R. Aaij, B. Adeva +791

A search for decays of $B_{c}^{+}$ mesons to two charm mesons is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ , collected by the LH…

hep-ex2017★ 24 cited

Search for excited $B_{c}^{+}$ states

LHCb collaboration, R. Aaij, B. Adeva +792

A search is performed in the invariant mass spectrum of the $B_{c}^{+} π^{+} π^{-}$ system for the excited $B_{c}^{+}$ states $B_{c} (2^{1} S_{0})^{+}$ and $B_{c} (2^{3} S_{1})^{+}$ using a data sam…

physics.med-ph2017★ 42 cited

Human Tissues Investigation Using PALS Technique

B. Jasińska, B. Zgardzińska, G. Chołubek +34

Samples of uterine leiomyomatis and normal tissues taken from patients after surgery were investigated using the Positron Annihilation Lifetime Spectroscopy (PALS). Significant dif…

physics.ins-det2017★ 12 cited

Commissioning of the J-PET detector for studies of decays of positronium atoms

E. Czerwiński, K. Dulski, P. Białas +29

The Jagiellonian Positron Emission Tomograph (J-PET) is a detector for medical imaging of the whole human body as well as for physics studies involving detection of electron-positr…

hep-ex2017★ 15 cited

Combination of KLOE $σ (e^{+} e^{-} \to π^{+} π^{-} γ (γ))$ measurements and determination of $a_{μ}^{π^{+} π^{-}}$ in the energy range $0.10 < s < 0.95$ GeV $^{2}$

2 Collaboration, A. Anastasi, D. Babusci +62

The three precision measurements of the cross section $σ (e^{+} e^{-} \to π^{+} π^{-} γ (γ))$ using initial state radiation by the KLOE collaboration provide an important input fo…

physics.med-ph2017★ 1 cited

Introduction of total variation regularization into filtered backprojection algorithm

L. Raczyński, W. Wiślicki, K. Klimaszewski +30

In this paper we extend the state-of-the-art filtered backprojection (FBP) method with application of the concept of Total Variation regularization. We compare the performance of t…

physics.ins-det2017★ 116 cited

J-PET: a new technology for the whole-body PET imaging

S. Niedźwiecki, P. Białas, C. Curceanu +30

The Jagiellonian Positron Emission Tomograph (J-PET) is the first PET built from plastic scintillators. J-PET prototype consists of 192 detection modules arranged axially in three…

physics.ins-det2017★ 5 cited

Three-dimensional image reconstruction in J-PET using Filtered Back Projection method

R. Y. Shopa, K. Klimaszewski, P. Kowalski +30

We present a method and preliminary results of the image reconstruction in the Jagiellonian PET tomograph. Using GATE (Geant4 Application for Tomographic Emission), interactions of…

physics.ins-det2017★ 14 cited

Analysis procedure of the positronium lifetime spectra for the J-PET detector

K. Dulski, B. Zgardzinska, P. Bialas +30

Positron Annihilation Lifetime Spectroscopy (PALS) has shown to be a powerful tool to study the nanostructures of porous materials. Positron Emissions Tomography (PET) are devices…

physics.ins-det2017★ 3 cited

Time calibration of the J-PET detector

M. Skurzok, M. Silarski, D. Alfs +32

The Jagiellonian Positron Emission Tomograph (J-PET) project carried out in the Institute of Physics of the Jagiellonian University is focused on construction and tests of the firs…

hep-ex2017★ 42 cited

Search for the lepton-flavour violating decays $B_{(s)}^{0} \to e^{\pm} μ^{\mp}$

LHCb collaboration, R. Aaij, B. Adeva +799

A search for the lepton-flavour violating decays $B_{s}^{0} \to e^{\pm} μ^{\mp}$ and $B^{0} \to e^{\pm} μ^{\mp}$ is performed based on a sample of proton-proton collision data co…

hep-ex2017★ 206 cited

Search for dark photons produced in 13 TeV $pp$ collisions

LHCb collaboration, R. Aaij, B. Adeva +796

Searches are performed for both prompt-like and long-lived dark photons, $A^{'}$ , produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using $A^{\prime}\…

hep-ex2017★ 14 cited

Measurement of $C P$ observables in $B^{\pm} \to D K^{*\pm}$ decays using two- and four-body $D$ final states

LHCb collaboration, R. Aaij, B. Adeva +799

Measurements of $C P$ observables in $B^{\pm} \to D K^{*\pm}$ decays are presented, where $D$ denotes a superposition of $D^{0}$ and $D^{0}$ meson states. Decays of t…

nucl-ex2017★ 2 cited

Spin dependence of η meson production in proton-proton collisions close to threshold

P. Adlarson, W. Augustyniak, W. Bardan +88

Taking advantage of the high acceptance and axial symmetry of the WASA-at-COSY detector, and the high degree of the polarized proton beam of COSY, the reaction pp{\to} ppη has been…

hep-ex2017★ 23 cited

$χ_{c 1}$ and $χ_{c 2}$ resonance parameters with the decays $χ_{c 1, c 2} \to J / ψ μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +797

The decays $χ_{c 1} \to J / ψ μ^{+} μ^{-}$ and $χ_{c 2} \to J / ψ μ^{+} μ^{-}$ are observed and used to study the resonance parameters of the $χ_{c 1}$ and $χ_{c 2}$ mesons. The mass…

hep-ex2017

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ and $B^{0} \to ψ (2 S) K_{S}^{0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +797

A measurement is presented of decay-time-dependent $C P$ violation in the decays $B^{0} \to J / ψ K_{S}^{0}$ and $B^{0} \to ψ (2 S) K_{S}^{0}$ , where the $J / ψ$ is reco…

hep-ex2017★ 48 cited

Measurement of the shape of the $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ differential decay rate

LHCb collaboration, R. Aaij, B. Adeva +801

A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ is reported, using data corresponding to…

hep-ex2017★ 14 cited

Bose-Einstein correlations of same-sign charged pions in the forward region in $pp$ collisions at $s$ = 7 TeV

LHCb collaboration, R. Aaij, B. Adeva +805

Bose-Einstein correlations of same-sign charged pions, produced in proton-proton collisions at a 7 TeV centre-of-mass energy, are studied using a data sample collected by the LHCb…

hep-ex2017★ 26 cited

Measurement of the $Υ$ polarizations in $pp$ collisions at $s$ =7 and 8TeV

LHCb collaboration, R. Aaij, B. Adeva +801

The polarization of the $Υ (1 S)$ , $Υ (2 S)$ and $Υ (3 S)$ mesons, produced in $pp$ collisions at centre-of-mass energies $s$ =7 and 8TeV, is measured using data samples collected…

nucl-ex2017★ 3 cited

Importance of d-wave contributions in the charge symmetry breaking reaction $dd \to^{4} He π^{0}$

P. Adlarson, W. Augustyniak, W. Bardan +89

This letter reports a first quantitative analysis of the contribution of higher partial waves in the charge symmetry breaking reaction $dd \to^{4} He π^{0}$ using the WASA-at-C…

hep-ex2017★ 318 cited

Measurement of the ratio of the $B^{0} \to D^{-} τ^{+} ν_{τ}$ and $B^{0} \to D^{-} μ^{+} ν_{μ}$ branching fractions using three-prong $τ$ -lepton decays

LHCb collaboration, R. Aaij, B. Adeva +806

The ratio of branching fractions $R (D^{*-}) \equiv B (B^{0} \to D^{*-} τ^{+} ν_{τ}) / B (B^{0} \to D^{*-} μ^{+} ν_{μ})$ is measured using a data sample of proton-proton colli…

hep-ex2017★ 14 cited

Study of $b b ˉ$ correlations in high energy proton-proton collisions

LHCb collaboration, R. Aaij, B. Adeva +802

Kinematic correlations for pairs of beauty hadrons, produced in high energy proton-proton collisions, are studied. The data sample used was collected with the LHCb experiment at ce…

hep-ex2017★ 13 cited

Search for baryon-number-violating $Ξ_{b}^{0}$ oscillations

LHCb collaboration, R. Aaij, B. Adeva +802

A search for baryon-number-violating $Ξ_{b}^{0}$ oscillations is performed with a sample of $pp$ collision data recorded by the LHCb experiment, corresponding to an integrated luminosi…

Amplitude analysis of the decay B0→KS0​π+π− and first observation of the CP asymmetry in B0→K∗(892)−π+

Search for Bc+​ decays to two charm mesons

Search for excited Bc+​ states

Human Tissues Investigation Using PALS Technique

Commissioning of the J-PET detector for studies of decays of positronium atoms

Combination of KLOE σ(e+e−→π+π−γ(γ)) measurements and determination of aμπ+π−​ in the energy range 0.10<s<0.95 GeV2

Introduction of total variation regularization into filtered backprojection algorithm

J-PET: a new technology for the whole-body PET imaging

Three-dimensional image reconstruction in J-PET using Filtered Back Projection method

Analysis procedure of the positronium lifetime spectra for the J-PET detector

Time calibration of the J-PET detector

Search for the lepton-flavour violating decays B(s)0​→e±μ∓

Search for dark photons produced in 13 TeV pp collisions

Measurement of CP observables in B±→DK∗± decays using two- and four-body D final states

Spin dependence of η meson production in proton-proton collisions close to threshold

χc1​ and χc2​ resonance parameters with the decays χc1,c2​→J/ψμ+μ−

Measurement of CP violation in B0→J/ψKS0​ and B0→ψ(2S)KS0​ decays

Measurement of the shape of the Λb0​→Λc+​μ−ν differential decay rate

Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at s​ = 7 TeV

Measurement of the Υ polarizations in pp collisions at s​=7 and 8TeV

Importance of d-wave contributions in the charge symmetry breaking reaction dd→4Heπ0

Measurement of the ratio of the B0→D∗−τ+ντ​ and B0→D∗−μ+νμ​ branching fractions using three-prong τ-lepton decays

Study of bbˉ correlations in high energy proton-proton collisions

Search for baryon-number-violating Ξb0​ oscillations

Amplitude analysis of the decay $B^{0} \to K_{S}^{0} π^{+} π^{-}$ and first observation of the CP asymmetry in $B^{0} \to K^{*} (892)^{-} π^{+}$

Search for $B_{c}^{+}$ decays to two charm mesons

Search for excited $B_{c}^{+}$ states

Combination of KLOE $σ (e^{+} e^{-} \to π^{+} π^{-} γ (γ))$ measurements and determination of $a_{μ}^{π^{+} π^{-}}$ in the energy range $0.10 < s < 0.95$ GeV $^{2}$

Search for the lepton-flavour violating decays $B_{(s)}^{0} \to e^{\pm} μ^{\mp}$

Search for dark photons produced in 13 TeV $pp$ collisions

Measurement of $C P$ observables in $B^{\pm} \to D K^{*\pm}$ decays using two- and four-body $D$ final states

$χ_{c 1}$ and $χ_{c 2}$ resonance parameters with the decays $χ_{c 1, c 2} \to J / ψ μ^{+} μ^{-}$

Measurement of $C P$ violation in $B^{0} \to J / ψ K_{S}^{0}$ and $B^{0} \to ψ (2 S) K_{S}^{0}$ decays

Measurement of the shape of the $Λ_{b}^{0} \to Λ_{c}^{+} μ^{-} ν$ differential decay rate

Bose-Einstein correlations of same-sign charged pions in the forward region in $pp$ collisions at $s$ = 7 TeV

Measurement of the $Υ$ polarizations in $pp$ collisions at $s$ =7 and 8TeV

Importance of d-wave contributions in the charge symmetry breaking reaction $dd \to^{4} He π^{0}$

Measurement of the ratio of the $B^{0} \to D^{-} τ^{+} ν_{τ}$ and $B^{0} \to D^{-} μ^{+} ν_{μ}$ branching fractions using three-prong $τ$ -lepton decays

Study of $b b ˉ$ correlations in high energy proton-proton collisions

Search for baryon-number-violating $Ξ_{b}^{0}$ oscillations