A. Stocchi

activity

19972025

most citedObservation of a Broad Structure in the

π^{+} π^{-} J / ψ

Mass Spectrum around 4.26 GeV/

c^{2}

744 citations · 13.4k across the 278 of their papers we have counts for

collaborators

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225 papers · 1 filter

hep-ex2025

Enhancing European Cooperation in the Search for Dark Matter

Bernard Andrieu, Ties Behnke, Philip Bechtle +47

The search for dark matter is an exciting topic that is pursued in different communities over a wide range of masses and using a variety of experimental approaches. The result is a…

hep-ex2019★ 27 cited

Summary Report of Physics Beyond Colliders at CERN

R. Alemany, C. Burrage, H. Bartosik +61

Physics Beyond Colliders is an exploratory study aimed at exploiting the full scientific potential of CERN's accelerator complex and its scientific infrastructure in the next two d…

hep-ex2019

Physics Beyond Colliders: QCD Working Group Report

A. Dainese, M. Diehl, P. Di Nezza +20

This report summarises the main findings of the QCD Working Group in the CERN Physics Beyond Colliders Study.

hep-ex2015★ 16 cited

Time-dependent analysis of $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ decays and studies of the $K^{+} π^{-} π^{+}$ system in $B^{+} \to K^{+} π^{-} π^{+} γ$ decays

P. del Amo Sanchez, others

We measure the time-dependent $C P$ asymmetry in the radiative-penguin decay $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ , using a sample of $471$ million $Υ(4S) \to B{\kern 0.18em\overline{\kern…

hep-ex2015★ 34 cited

Collins asymmetries in inclusive charged $K K$ and $K π$ pairs produced in $e^{+} e^{-}$ annihilation

B. Aubert, others

We present measurements of Collins asymmetries in the inclusive process $e^{+} e^{-} \to h_{1} h_{2} X$ , $h_{1} h_{2} = K K, K π, π π$ , at the center-of-mass energy of 10.6 GeV, using a d…

hep-ex2015★ 55 cited

Search for Long-Lived Particles in $e^{+} e^{-}$ Collisions

J. P. Lees, others

We present a search for a neutral, long-lived particle $L$ that is produced in $e^{+} e^{-}$ collisions and decays at a significant distance from the $e^{+} e^{-}$ interaction point into var…

hep-ex2014★ 42 cited

Measurement of the $D^{0} \to π^{-} e^{+} ν_{e}$ differential decay branching fraction as a function of $q^{2}$ and study of form factor parameterizations

J. P. Lees

Based on a sample of 500 million $e^{+} e^{-} \to c c ˉ$ events recorded by the BaBar detector at c.m. energies of close to 10.6 GeV, we report on a study of the decay $D^0 \to π^- e^…

hep-ex2014★ 3 cited

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

The BABAR Collaboration, J. P. Lees, others

We report on a search in $e^{+} e^{-}$ annihilations for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair. These objects, with a similar mass and similar decay mo…

hep-ex2014★ 19 cited

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

The BABAR Collaboration, J. P. Lees, others

We present a measurement of the asymmetry $A_{C P}$ between same-sign inclusive dilepton samples $ℓ^{+} ℓ^{+}$ and $ℓ^{-} ℓ^{-}$ ( $ℓ = e, μ$ ) from semileptonic B decays in Y(4…

hep-ex2014★ 10 cited

Bottomonium spectroscopy and radiative transitions involving the chi_bJ(1P,2P) states at BABAR

J. P. Lees

We use $(121 \pm 1)$ million $Υ (3 S)$ and $(98 \pm 1)$ million $Υ (2 S)$ mesons recorded by the BABAR detector at the PEP-II $e^{+} e^{-}$ collider at SLAC to perform a study of radiative tran…

hep-ex2014★ 62 cited

Cross sections for the reactions $e^{+} e^{-} \to K_{S}^{0} K_{L}^{0}$ , $K_{S}^{0} K_{L}^{0} π^{+} π^{-}$ , $K_{S}^{0} K_{S}^{0} π^{+} π^{-}$ , and $K_{S}^{0} K_{S}^{0} K^{+} K^{-}$ from events with initial-state radiation

The BABAR Collaboration, J. P. Lees

We study the processes $e^{+} e^{-} \to K_{S}^{0} K_{L}^{0} γ$ , $K_{S}^{0} K_{L}^{0} π^{+} π^{-} γ$ , $K_{S}^{0} K_{S}^{0} π^{+} π^{-} γ$ , and $K_{S}^{0} K_{S}^{0} K^{+} K^{-} γ$ , where the photon is radiated from the initial state, pro…

hep-ex2014★ 19 cited

Antideuteron production in $Υ (n S)$ decays and in $e^{+} e^{-} \to q q$ at $s \approx 10.58 Ge V$

J. P. Lees

We present measurements of the inclusive production of antideuterons in $e^{+} e^{-}$ annihilation into hadrons at $\approx 10.58 Ge V$ center-of-mass energy and…

hep-ex2013★ 5 cited

Evidence for the decay B0 --> omega omega and search for B0 --> omega phi

The BABAR Collaboration, J. P. Lees, V. Poireau +333

We describe searches for B meson decays to the charmless vector-vector final states omega omega and omega phi with 471 x 10^6 B Bbar pairs produced in e+ e- annihilation at sqrt(s)…

hep-ex2013★ 81 cited

Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV

The BABAR Collaboration, J. P. Lees, others

Inclusive production cross sections of $π^{\pm}$ , $K^{\pm}$ and $p p ˉ$ per hadronic $e^{+} e^{-}$ annihilation event in $e^{+} e^{-}$ are measured at a center-of-mass energy of 10.54 GeV, us…

hep-ex2013★ 5 cited

Study of the decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ π^{+} π^{-}$ and its intermediate states

The Babar Collaboration, J. P. Lees, V. Poireau +351

We study the decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ π^{+} π^{-}$ , reconstructing the Λ_{c}^{+} baryon in the $p K^{-} π^{+}$ mode, using a data sample of $467 \times 1 0^{6}$ $B\…

hep-ex2013★ 168 cited

Study of e+e- --> p anti-p via initial-state radiation at BABAR

The BABAR Collaboration

The process e+e- --> p anti-p gamma is studied using 469 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II collider, at an e+e- center-of-mass energy of…

hep-ex2012★ 17 cited

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

BaBar Collaboration, J. P. Lees, V. Poireau +359

We report on a search for direct CP asymmetry in the singly Cabibbo-suppressed decay D+- --> K+ K- pi+- using a data sample of 476 fb-1 accumulated with the BaBar detector running…

hep-ex2012★ 48 cited

Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

J. P. Lees, others

We search for a low-mass scalar CP-odd Higgs boson, A0, produced in the radiative decay of the Upsilon resonance and decaying into a tau+tau- pair: Upsilon(1S)->gamma A0. The produ…

hep-ex2012★ 156 cited

Observation of Time Reversal Violation in the B0 Meson System

The BABAR Collaboration, J. P. Lees, V. Poireau +364

Although CP violation in the B meson system has been well established by the B factories, there has been no direct observation of time reversal violation. The decays of entangled n…

hep-ex2011★ 3 cited

The impact of SuperB on flavour physics

B. Meadows, M. Blanke, A. Stocchi +11

This report provides a succinct summary of the physics programme of SuperB, and describes that potential in the context of experiments making measurements in flavour physics over t…

hep-ex2011★ 4 cited

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

The BABAR Collaboration, J. P. Lees, V. Poireau +384

We report the observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- with a significance larger than 7 standard deviations based on 471x10^6$ BBbar pairs collected…

hep-ex2011★ 19 cited

Study of radiative bottomonium transitions using converted photons

The BABAR Collaboration, J. P. Lees, V. Poireau +388

We use 111+/-1 million Upsilon(3S) and 89+/-1 million Upsilon(2S) events recorded by the BaBar detector at the PEP-II B-factory at SLAC to perform a study of radiative transitions…

hep-ex2011★ 71 cited

A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

DELPHI Collaboration, J. Abdallah

The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementary methods are used to reconstruct the en…

hep-ex2011★ 10 cited

Search for single top quark production via contact interactions at LEP2

DELPHI Collaboration, J. Abdallah

Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The…

Enhancing European Cooperation in the Search for Dark Matter

Summary Report of Physics Beyond Colliders at CERN

Physics Beyond Colliders: QCD Working Group Report

Time-dependent analysis of B0→KS0​π−π+γ decays and studies of the K+π−π+ system in B+→K+π−π+γ decays

Collins asymmetries in inclusive charged KK and Kπ pairs produced in e+e− annihilation

Search for Long-Lived Particles in e+e− Collisions

Measurement of the D0→π−e+νe​ differential decay branching fraction as a function of q2 and study of form factor parameterizations

Search for new π0-like particles produced in association with a τ-lepton pair

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

Bottomonium spectroscopy and radiative transitions involving the chi_bJ(1P,2P) states at BABAR

Cross sections for the reactions e+e−→KS0​KL0​, KS0​KL0​π+π−, KS0​KS0​π+π−, and KS0​KS0​K+K− from events with initial-state radiation

Antideuteron production in Υ(nS) decays and in e+e−→qq​ at s​≈10.58GeV

Evidence for the decay B0 --> omega omega and search for B0 --> omega phi

Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV

Study of the decay Bˉ0→Λc+​pˉ​π+π− and its intermediate states

Study of e+e- --> p anti-p via initial-state radiation at BABAR

Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays

Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

Observation of Time Reversal Violation in the B0 Meson System

The impact of SuperB on flavour physics

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

Study of radiative bottomonium transitions using converted photons

A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole

Search for single top quark production via contact interactions at LEP2

Time-dependent analysis of $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ decays and studies of the $K^{+} π^{-} π^{+}$ system in $B^{+} \to K^{+} π^{-} π^{+} γ$ decays

Collins asymmetries in inclusive charged $K K$ and $K π$ pairs produced in $e^{+} e^{-}$ annihilation

Search for Long-Lived Particles in $e^{+} e^{-}$ Collisions

Measurement of the $D^{0} \to π^{-} e^{+} ν_{e}$ differential decay branching fraction as a function of $q^{2}$ and study of form factor parameterizations

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

Cross sections for the reactions $e^{+} e^{-} \to K_{S}^{0} K_{L}^{0}$ , $K_{S}^{0} K_{L}^{0} π^{+} π^{-}$ , $K_{S}^{0} K_{S}^{0} π^{+} π^{-}$ , and $K_{S}^{0} K_{S}^{0} K^{+} K^{-}$ from events with initial-state radiation

Antideuteron production in $Υ (n S)$ decays and in $e^{+} e^{-} \to q q$ at $s \approx 10.58 Ge V$

Study of the decay $B ˉ^{0} \to Λ_{c}^{+} p ˉ π^{+} π^{-}$ and its intermediate states