Sneha Malde: Publications

Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

European Physical Journal C 72:4 (2012) 1-14

Authors:

LHCb Collaboration The, R Aaij, R Aaij, CA Beteta, CA Beteta, B Adeva, B Adeva, M Adinolfi, M Adinolfi, C Adrover, C Adrover, A Affolder, A Affolder, Z Ajaltouni, Z Ajaltouni, J Albrecht, J Albrecht, F Alessio, F Alessio, M Alexander, M Alexander, G Alkhazov, G Alkhazov, PA Cartelle, PA Cartelle, AA Alves, AA Alves, S Amato, S Amato, Y Amhis, Y Amhis, J Anderson, J Anderson, RB Appleby, RB Appleby, OA Gutierrez, OA Gutierrez, F Archilli, F Archilli, F Archilli, L Arrabito, L Arrabito, A Artamonov, A Artamonov, M Artuso, M Artuso, M Artuso, E Aslanides, E Aslanides, G Auriemma, G Auriemma, S Bachmann, S Bachmann, JJ Back, JJ Back, DS Bailey, DS Bailey, V Balagura, V Balagura, V Balagura, W Baldini, W Baldini, RJ Barlow, RJ Barlow, C Barschel, C Barschel, S Barsuk, S Barsuk, W Barter, W Barter, A Bates, A Bates, C Bauer, C Bauer, T Bauer, T Bauer, A Bay, A Bay, I Bediaga, I Bediaga, S Belogurov, S Belogurov, K Belous, K Belous, I Belyaev, I Belyaev, I Belyaev, E Ben-Haim, E Ben-Haim, M Benayoun, M Benayoun, G Bencivenni, G Bencivenni, S Benson, S Benson, J Benton, J Benton, R Bernet, R Bernet, MO Bettler

Abstract:

Charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of √S = 7 TeV in different intervals of pseudorapidity η. Charged particles are reconstructed close to the interaction region in the vertex detector, which provides high reconstruction efficiency in the η ranges -2.5<η<-2.0 and 2.0<η<4.5. The data were taken with a minimum bias trigger, only requiring one or more reconstructed tracks in the vertex detector. By selecting an event sample with at least one track with a transverse momentum greater than 1 GeV/c a hard QCD subsample is investigated. Several event generators are compared with the data; none are able to describe fully the multiplicity distributions or the charged particle density distribution as a function of η. In general, the models underestimate charged particle production. © 2012 CERN for the benefit of the LHCb collaboration.

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Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

European Physical Journal C 72:4 (2012) 1-14

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Erratum: Evidence for CP violation in time-integrated D0→h ^-h ⁺ decay rates (Physical Review Letters (2012) 108 (111602))

Physical Review Letters 108:12 (2012)

Authors:

R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, C Adrover, A Affolder, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, G Alkhazov, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, J Anderson, RB Appleby, O Aquines Gutierrez, F Archilli, L Arrabito, A Artamonov, M Artuso, E Aslanides, G Auriemma, S Bachmann, JJ Back, DS Bailey, V Balagura, W Baldini, RJ Barlow, C Barschel, S Barsuk, W Barter, A Bates, C Bauer, T Bauer, A Bay, I Bediaga, S Belogurov, K Belous, I Belyaev, E Ben-Haim, M Benayoun, G Bencivenni, S Benson, J Benton, R Bernet, MO Bettler, M Van Beuzekom, A Bien, S Bifani, T Bird, A Bizzeti, PM Bjørnstad, T Blake, F Blanc, C Blanks, J Blouw, S Blusk, A Bobrov, V Bocci, A Bondar, N Bondar, W Bonivento, S Borghi, A Borgia, TJV Bowcock, C Bozzi, T Brambach, J Van Den Brand, J Bressieux, D Brett, M Britsch, T Britton, NH Brook, H Brown, A Büchler-Germann, I Burducea, A Bursche, J Buytaert, S Cadeddu, O Callot, M Calvi, M Calvo Gomez, A Camboni, P Campana, A Carbone, G Carboni, R Cardinale, A Cardini, L Carson, K Carvalho Akiba, G Casse, M Cattaneo, C Cauet, M Charles, P Charpentier, N Chiapolini, K Ciba, X Cid Vidal

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Measurement of the B s⁰-B ^-s⁰ oscillation frequency δm s in B s⁰→D s^-(3)π decays

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 709:3 (2012) 177-184

Authors:

R Aaij, B Adeva, M Adinolfi, C Adrover, A Affolder, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, G Alkhazov, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, J Anderson, RB Appleby, O Aquines Gutierrez, F Archilli, L Arrabito, A Artamonov, M Artuso, E Aslanides, G Auriemma, S Bachmann, JJ Back, DS Bailey, V Balagura, W Baldini, RJ Barlow, C Barschel, S Barsuk, W Barter, A Bates, C Bauer, T Bauer, A Bay, I Bediaga, K Belous, I Belyaev, E Ben-Haim, M Benayoun, G Bencivenni, S Benson, J Benton, R Bernet, MO Bettler, M van Beuzekom, A Bien, S Bifani, A Bizzeti, PM Bjørnstad, T Blake, F Blanc, C Blanks, J Blouw, S Blusk, A Bobrov, V Bocci, A Bondar, N Bondar, W Bonivento, S Borghi, A Borgia, TJV Bowcock, C Bozzi, T Brambach, J van den Brand, J Bressieux, D Brett, S Brisbane, M Britsch, T Britton, NH Brook, H Brown, A Büchler-Germann, I Burducea, A Bursche, J Buytaert, S Cadeddu, JM Caicedo Carvajal, O Callot, M Calvi, M Calvo Gomez, A Camboni, P Campana, A Carbone, G Carboni, R Cardinale, A Cardini, L Carson, K Carvalho Akiba, G Casse, M Cattaneo, M Charles, P Charpentier, N Chiapolini, K Ciba, X Cid Vidal, G Ciezarek, Clarke

Abstract:

The B s0-B -s0 oscillation frequency δm s is measured with 36 pb -1 of data collected in pp collisions at s=7TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 B s0→D s-π+ and B s0→D s-π +π -π + signal decays are reconstructed, with average decay time resolutions of 44 fs and 36 fs, respectively. An oscillation signal with a statistical significance of 4.6σ is observed. The measured oscillation frequency is δm s=17.63±0.11(stat)±0.02(syst)ps -1. © 2012 CERN.

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First observation of the decay B s 0→K 0K̄ 0

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 709:1-2 (2012) 50-58

Authors:

R Aaij, C Abellan Beteta, B Adeva, M Adinolfi, C Adrover, A Affolder, Z Ajaltouni, J Albrecht, F Alessio, M Alexander, G Alkhazov, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, J Anderson, RB Appleby, O Aquines Gutierrez, F Archilli, F Archilli, L Arrabito, A Artamonov, M Artuso, M Artuso, E Aslanides, G Auriemma, S Bachmann, JJ Back, DS Bailey, V Balagura, V Balagura, W Baldini, RJ Barlow, C Barschel, S Barsuk, W Barter, A Bates, C Bauer, T Bauer, A Bay, I Bediaga, S Belogurov, K Belous, I Belyaev, I Belyaev, E Ben-Haim, M Benayoun, G Bencivenni, S Benson, J Benton, R Bernet, MO Bettler, M van Beuzekom, A Bien, S Bifani, A Bizzeti, PM Bjørnstad, T Blake, F Blanc, C Blanks, J Blouw, S Blusk, A Bobrov, V Bocci, A Bondar, N Bondar, W Bonivento, S Borghi, A Borgia, TJV Bowcock, C Bozzi, T Brambach, J van den Brand, J Bressieux, D Brett, S Brisbane, M Britsch, T Britton, NH Brook, H Brown, A Büchler-Germann, I Burducea, A Bursche, J Buytaert, S Cadeddu, JM Caicedo Carvajal, O Callot, M Calvi, M Calvo Gomez, A Camboni, P Campana, P Campana, A Carbone, G Carboni, R Cardinale, R Cardinale, A Cardini, L Carson, K Carvalho Akiba, G Casse

Abstract:

The first observation of the decay B s 0→K *0K̄ *0 is reported using 35 pb -1 of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of 49.8±7.5 Bs0→(K +π -)(K -π +) events are observed within ±50 MeV/c 2 of the B s 0 mass and 746 MeV/c 2

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Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

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Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

Authors:

Abstract:

Erratum: Evidence for CP violation in time-integrated D0→h ^-h ⁺ decay rates (Physical Review Letters (2012) 108 (111602))

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Measurement of the B s⁰-B ^-s⁰ oscillation frequency δm s in B s⁰→D s^-(3)π decays

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Abstract:

First observation of the decay B s 0→K 0K̄ 0

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Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

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Measurement of charged particle multiplicities in pp collisions at √S = 7 in the forward region

Authors:

Abstract:

Erratum: Evidence for CP violation in time-integrated D0→h -h + decay rates (Physical Review Letters (2012) 108 (111602))

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Measurement of the B s0-B -s0 oscillation frequency δm s in B s0→D s-(3)π decays

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Abstract:

First observation of the decay B s 0→K *0K̄ *0

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Abstract:

Erratum: Evidence for CP violation in time-integrated D0→h ^-h ⁺ decay rates (Physical Review Letters (2012) 108 (111602))

Measurement of the B s⁰-B ^-s⁰ oscillation frequency δm s in B s⁰→D s^-(3)π decays

First observation of the decay B s 0→K 0K̄ 0