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1

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Erratum to: Searches for long-lived charged particles in pp collisions at $$ \sqrt{\textrm{s}} $$ = 7 and 8 TeV

The CMS collaboration ; Chatrchyan, S. ; Khachatryan, V. ; [et al.]

Springer Science and Business Media LLC ; 2022

In: Journal of High Energy Physics Vol. 2022, No. 11 ( 2022-11-28)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2022, No. 11 ( 2022-11-28)

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP11(2022)149

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2022

detail.hit.zdb_id: 2027350-2

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2

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Amplitude analysis of the $$ {\Lambda}_{\textrm{b}}^0\to {\textrm{pK}}^{-}\upgamma $$ decay

The LHCb collaboration ; Aaij, R. ; Abdelmotteleb, A. S. W. ; [et al.]

Springer Science and Business Media LLC ; 2024

In: Journal of High Energy Physics Vol. 2024, No. 6 ( 2024-06-18)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2024, No. 6 ( 2024-06-18)

Abstract: The resonant structure of the radiative decay $$ {\Lambda}_b^0\to {pK}^{-}\gamma $$ Λ b 0 → pK − γ in the region of proton-kaon invariant-mass up to 2.5 GeV/ c 2 is studied using proton-proton collision data recorded at centre-of-mass energies of 7, 8, and 13 TeV collected with the LHCb detector, corresponding to a total integrated luminosity of 9 fb − 1 . Results are given in terms of fit and interference fractions between the different components contributing to this final state. Only Λ resonances decaying to pK − are found to be relevant, where the largest contributions stem from the Λ(1520), Λ(1600), Λ(1800), and Λ(1890) states.

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP06(2024)098

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2024

detail.hit.zdb_id: 2027350-2

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3

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Test of lepton flavor universality using B 0 → D * − τ + ν τ decays with hadronic τ channels

Aaij, R. ; Abdelmotteleb, A. S. W. ; Abellan Beteta, C. ; [et al.]

American Physical Society (APS) ; 2023

In: Physical Review D Vol. 108, No. 1 ( 2023-7-27)

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In: Physical Review D, American Physical Society (APS), Vol. 108, No. 1 ( 2023-7-27)

Type of Medium: Online Resource

ISSN: 2470-0010 , 2470-0029

URL: Article

DOI: 10.1103/PhysRevD.108.012018

Language: English

Publisher: American Physical Society (APS)

Publication Date: 2023

detail.hit.zdb_id: 2844732-3

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4

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Measurement of the mass difference and relative production rate of the Ω b − and Ξ b − baryons

Aaij, R. ; Abdelmotteleb, A. S. W. ; Beteta, C. Abellan ; [et al.]

American Physical Society (APS) ; 2023

In: Physical Review D Vol. 108, No. 5 ( 2023-9-18)

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In: Physical Review D, American Physical Society (APS), Vol. 108, No. 5 ( 2023-9-18)

Type of Medium: Online Resource

ISSN: 2470-0010 , 2470-0029

URL: Article

DOI: 10.1103/PhysRevD.108.052008

Language: English

Publisher: American Physical Society (APS)

Publication Date: 2023

detail.hit.zdb_id: 2844732-3

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5

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Study of charmonium decays to K S 0 K π in the B → ( K S 0 K π ) K channels

Aaij, R. ; Abdelmotteleb, A. S. W. ; Abellan Beteta, C. ; [et al.]

American Physical Society (APS) ; 2023

In: Physical Review D Vol. 108, No. 3 ( 2023-8-17)

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In: Physical Review D, American Physical Society (APS), Vol. 108, No. 3 ( 2023-8-17)

Type of Medium: Online Resource

ISSN: 2470-0010 , 2470-0029

URL: Article

DOI: 10.1103/PhysRevD.108.032010

Language: English

Publisher: American Physical Society (APS)

Publication Date: 2023

detail.hit.zdb_id: 2844732-3

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6

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Search for CP violation in the phase space of D0 → π−π+π0 decays with the energy test

The LHCb collaboration ; Aaij, R. ; Abdelmotteleb, A. S. W. ; [et al.]

Springer Science and Business Media LLC ; 2023

In: Journal of High Energy Physics Vol. 2023, No. 9 ( 2023-09-20)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 9 ( 2023-09-20)

Abstract: A search for CP violation in D 0 → π − π + π 0 decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6 fb − 1 . An unbinned model-independent approach provides sensitivity to local CP violation within the two-dimensional phase space of the decay. The method is validated using the Cabibbo-favoured channel D 0 → K − π + π 0 and background regions of the signal mode. The results are consistent with CP symmetry in this decay.

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP09(2023)129

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2023

detail.hit.zdb_id: 2027350-2

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7

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Study of the Bose-Einstein correlations of same-sign pions in proton-lead collisions

The LHCb collaboration ; Aaij, R. ; Abdelmotteleb, A. S. W. ; [et al.]

Springer Science and Business Media LLC ; 2023

In: Journal of High Energy Physics Vol. 2023, No. 9 ( 2023-09-26)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 9 ( 2023-09-26)

Abstract: Correlations of same-sign charged pions are analysed using proton-lead collision data collected by the LHCb experiment at a nucleon-nucleon centre-of-mass energy of 5.02 TeV, corresponding to an integrated luminosity of 1.06 nb − 1 . Bose-Einstein correlations are observed in the form of an enhancement of pair production for same-sign charged pions with a small four-momentum difference. The dependence of the correlation radius and the intercept parameter on the reconstructed charged-particle multiplicity is investigated. The measured correlation radii scale linearly with the cube root of the reconstructed charged-particle multiplicity, being compatible with predictions of hydrodynamic models on the collision system evolution.

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP09(2023)172

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2023

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8

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Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons

The LHCb collaboration ; Aaij, R. ; Abdelmotteleb, A. S. W. ; [et al.]

Springer Science and Business Media LLC ; 2023

In: Journal of High Energy Physics Vol. 2023, No. 9 ( 2023-09-28)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2023, No. 9 ( 2023-09-28)

Abstract: The CP asymmetries of seven B − decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb − 1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D *0 or $$ {D}_s^{\ast -} $$ D s ∗ − meson are analysed by reconstructing only the D 0 or $$ {D}_s^{-} $$ D s − decay products. This paper presents the first measurement of $$ \mathcal{A} $$ A CP ( B − → $$ {D}_s^{\ast -} $$ D s ∗ − D 0 ) and $$ \mathcal{A} $$ A CP ( B − → $$ {D}_s^{-} $$ D s − D ∗ 0 ), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP09(2023)202

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2023

detail.hit.zdb_id: 2027350-2

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9

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Measurement of the Z boson production cross-section in pp collisions at $$ \sqrt{s} $$ = 5.02 TeV

The LHCb collaboration ; Aaij, R. ; Abdelmotteleb, A. S. W. ; [et al.]

Springer Science and Business Media LLC ; 2024

In: Journal of High Energy Physics Vol. 2024, No. 2 ( 2024-02-13)

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In: Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2024, No. 2 ( 2024-02-13)

Abstract: The first measurement of the Z boson production cross-section at centre-of-mass energy $$ \sqrt{s} $$ s = 5 . 02 TeV in the forward region is reported, using pp collision data collected by the LHCb experiment in year 2017, corresponding to an integrated luminosity of 100 ± 2 pb − 1 . The production cross-section is measured for final-state muons in the pseudorapidity range 2 . 0 〈 η 〈 4 . 5 with transverse momentum p T 〉 20 GeV/ c . The integrated cross-section is determined to be $$ {\sigma}_{Z\to \mu +\mu -}=39.6\pm 0.7\left(\textrm{stat}\right)\pm 0.6\left(\textrm{syst}\right)\pm 0.8\left(\textrm{lumi}\right)\textrm{pb} $$ σ Z → μ + μ − = 39.6 ± 0.7 stat ± 0.6 syst ± 0.8 lumi pb for the di-muon invariant mass in the range 60 〈 M μμ 〈 120 GeV/ c 2 . This result and the differential cross-section results are in good agreement with theoretical predictions at next-to-next-to-leading order in the strong coupling constant. Based on a previous LHCb measurement of the Z boson production cross-section in p Pb collisions at $$ \sqrt{s_{NN}} $$ s NN = 5 . 02 TeV, the nuclear modification factor R p Pb is measured for the first time at this energy. The measured values are $$ {1.2}_{-0.3}^{+0.5} $$ 1.2 − 0.3 + 0.5 (stat) ± 0 . 1(syst) in the forward region (1.53 〈 $$ {y}_{\mu}^{\ast } $$ y μ ∗ 〈 4 . 03) and $$ {3.6}_{-0.9}^{+1.6} $$ 3.6 − 0.9 + 1.6 (stat) ± 0 . 2(syst) in the backward region ( − 4 . 97 〈 $$ {y}_{\mu}^{\ast } $$ y μ ∗ 〈 − 2 . 47), where $$ {y}_{\mu}^{\ast } $$ y μ ∗ represents the muon rapidity in the centre-of-mass frame.

Type of Medium: Online Resource

ISSN: 1029-8479

URL: Article

DOI: 10.1007/JHEP02(2024)070

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2024

detail.hit.zdb_id: 2027350-2

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10

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Search for $$D^{*}(2007)^{0} \rightarrow \mu ^{+} \mu ^{-}$$ in $$B^{-}\rightarrow \pi ^{-} \mu ^{+} \mu ^{-}$$ decays

Aaij, R. ; Abdelmotteleb, A. S. W. ; Beteta, C. Abellan ; [et al.]

Springer Science and Business Media LLC ; 2023

In: The European Physical Journal C Vol. 83, No. 7 ( 2023-07-26)

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In: The European Physical Journal C, Springer Science and Business Media LLC, Vol. 83, No. 7 ( 2023-07-26)

Abstract: The very rare $${{D} ^*} (2007)^0\!\rightarrow {\mu ^+\mu ^-} $$ D ∗ ( 2007 ) 0 → μ + μ - decay is searched for by analysing $${{{B} ^-}} \!\rightarrow {{\pi } ^-} {\mu ^+\mu ^-} $$ B - → π - μ + μ - decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 $$\text {\,fb} ^{-1}$$ \,fb - 1 . The signal signature corresponds to simultaneous peaks in the $${\mu ^+\mu ^-} $$ μ + μ - and $${{\pi } ^-} {\mu ^+\mu ^-} $$ π - μ + μ - invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at $$\mathcal{B}({{D} ^*} (2007)^0\!\rightarrow {\mu ^+\mu ^-} ) 〈 2.6\times 10^{-8}$$ B ( D ∗ ( 2007 ) 0 → μ + μ - ) 〈 2.6 × 10 - 8 at $$90\%$$ 90 % confidence level. This is the first limit on the branching fraction of $${{D} ^*} (2007)^0\!\rightarrow {\mu ^+\mu ^-} $$ D ∗ ( 2007 ) 0 → μ + μ - decays and the most stringent limit on $${{D} ^*} (2007)^0$$ D ∗ ( 2007 ) 0 decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.

Type of Medium: Online Resource

ISSN: 1434-6052

URL: Article

DOI: 10.1140/epjc/s10052-023-11759-6

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2023

detail.hit.zdb_id: 1397769-6

detail.hit.zdb_id: 1459069-4

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