Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0  → Λ<inf>c</inf>+ π− branching fraction

R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; J. Anderson; R. Andreassen; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; Th Bauer; A. Bay; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; M. O. Bettler; M. Van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bjørnstad; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; M. Borsato; T. J.V. Bowcock; E. Bowen; C. Bozzi; T. Brambach; J. Van Den Brand; J. Bressieux; D. Brett; M. Britsch; T. Britton; N. H. Brook; H. Brown; A. Bursche; G. Busetto; J. Buytaert; S. Cadeddu; R. Calabrese; O. Callot; M. Calvi; M. Calvo Gomez

doi:10.1007/JHEP08(2014)143

Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0 → Λ<inf>c</inf>+ π− branching fraction

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, J. Anderson, R. Andreassen, M. AndreottiJ. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, Th Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, M. Borsato, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, R. Calabrese, O. Callot, M. Calvi, M. Calvo Gomez

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

Abstract

The kinematic dependences of the relative production rates, (formula presented), of Λ ⁰ _b baryons and B ⁰ mesons are measured using Λ ⁰ _b → Λ _c ⁺ π ⁻ and (formula presented) decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb ⁻¹ at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, p _T, and pseudorapidity, η, of the beauty hadron, in the studied kinematic region 1.5 < p _T < 40 GeV/c and 2 < η < 5. Using a previous LHCb measurement of (formula presented) in semileptonic decays, the branching fraction (formula presented) is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of (formula presented) and the fourth is due to the (formula presented) branching fraction. This is the most precise measurement of a Λ _b ⁰ branching fraction to date.

Original language	English
Article number	143
Pages (from-to)	1-18
Number of pages	18
Journal	Journal of High Energy Physics
Volume	2014
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2014)143
Publication status	Published - 1 Jan 2014
Externally published	Yes

Bibliographical note

Funding Information:
Both of the authors conceived the theme, wrote the manuscript, and shared responsibility for the final content. MSF has served as principal investigator or co-investigator on NIH grants examining the growth and development of high-risk infants, parental feeding practices, and obesity prevention. JBH had no conflicts to report.

Publisher Copyright:
© CERN, for the benefit of the LHCb Collaboration.

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP08(2014)143

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Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., Andreassen, R., ... Calvo Gomez, M. (2014). Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0 → Λ<inf>c</inf>+ π− branching fraction. Journal of High Energy Physics, 2014(8), 1-18. Article 143. https://doi.org/10.1007/JHEP08(2014)143

@article{bbe2d381f48e4890bf1d7ced0c06157c,

title = "Study of the kinematic dependences of Λb0 production in pp collisions and a measurement of the Λb0 → Λc+ π− branching fraction",

abstract = "The kinematic dependences of the relative production rates, (formula presented), of Λ 0 b baryons and B 0 mesons are measured using Λ 0 b → Λ c + π − and (formula presented) decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb −1 at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, p T, and pseudorapidity, η, of the beauty hadron, in the studied kinematic region 1.5 < p T < 40 GeV/c and 2 < η < 5. Using a previous LHCb measurement of (formula presented) in semileptonic decays, the branching fraction (formula presented) is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of (formula presented) and the fourth is due to the (formula presented) branching fraction. This is the most precise measurement of a Λ b 0 branching fraction to date. ",

author = "R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and Th Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and Bettler, {M. O.} and {Van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bj{\o}rnstad, {P. M.} and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and M. Borsato and Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and T. Brambach and {Van Den Brand}, J. and J. Bressieux and D. Brett and M. Britsch and T. Britton and Brook, {N. H.} and H. Brown and A. Bursche and G. Busetto and J. Buytaert and S. Cadeddu and R. Calabrese and O. Callot and M. Calvi and {Calvo Gomez}, M.",

note = "Funding Information: Both of the authors conceived the theme, wrote the manuscript, and shared responsibility for the final content. MSF has served as principal investigator or co-investigator on NIH grants examining the growth and development of high-risk infants, parental feeding practices, and obesity prevention. JBH had no conflicts to report. Publisher Copyright: {\textcopyright} CERN, for the benefit of the LHCb Collaboration.",

year = "2014",

month = jan,

day = "1",

doi = "10.1007/JHEP08(2014)143",

language = "English",

volume = "2014",

pages = "1--18",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "8",

}

Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Balagura, V, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, MO, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, PM, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, TJV, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, NH, Brown, H, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Calabrese, R, Callot, O, Calvi, M & Calvo Gomez, M 2014, 'Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0 → Λ<inf>c</inf>+ π− branching fraction', Journal of High Energy Physics, vol. 2014, no. 8, 143, pp. 1-18. https://doi.org/10.1007/JHEP08(2014)143

Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0 → Λ<inf>c</inf>+ π− branching fraction. / Aaij, R.; Adeva, B.; Adinolfi, M. et al.
In: Journal of High Energy Physics, Vol. 2014, No. 8, 143, 01.01.2014, p. 1-18.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Study of the kinematic dependences of Λb0 production in pp collisions and a measurement of the Λb0 → Λc+ π− branching fraction

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Bauer, Th

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Bettler, M. O.

AU - Van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjørnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blouw, J.

AU - Blusk, S.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Borsato, M.

AU - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Brambach, T.

AU - Van Den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brook, N. H.

AU - Brown, H.

AU - Bursche, A.

AU - Busetto, G.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Calabrese, R.

AU - Callot, O.

AU - Calvi, M.

AU - Calvo Gomez, M.

N1 - Funding Information: Both of the authors conceived the theme, wrote the manuscript, and shared responsibility for the final content. MSF has served as principal investigator or co-investigator on NIH grants examining the growth and development of high-risk infants, parental feeding practices, and obesity prevention. JBH had no conflicts to report. Publisher Copyright: © CERN, for the benefit of the LHCb Collaboration.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - The kinematic dependences of the relative production rates, (formula presented), of Λ 0 b baryons and B 0 mesons are measured using Λ 0 b → Λ c + π − and (formula presented) decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb −1 at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, p T, and pseudorapidity, η, of the beauty hadron, in the studied kinematic region 1.5 < p T < 40 GeV/c and 2 < η < 5. Using a previous LHCb measurement of (formula presented) in semileptonic decays, the branching fraction (formula presented) is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of (formula presented) and the fourth is due to the (formula presented) branching fraction. This is the most precise measurement of a Λ b 0 branching fraction to date.

AB - The kinematic dependences of the relative production rates, (formula presented), of Λ 0 b baryons and B 0 mesons are measured using Λ 0 b → Λ c + π − and (formula presented) decays. The measurements use proton-proton collision data, corresponding to an integrated luminosity of 1 fb −1 at a centre-of-mass energy of 7 TeV, recorded in the forward region with the LHCb experiment. The relative production rates are observed to depend on the transverse momentum, p T, and pseudorapidity, η, of the beauty hadron, in the studied kinematic region 1.5 < p T < 40 GeV/c and 2 < η < 5. Using a previous LHCb measurement of (formula presented) in semileptonic decays, the branching fraction (formula presented) is obtained, where the first uncertainty is statistical, the second is systematic, the third is from the previous LHCb measurement of (formula presented) and the fourth is due to the (formula presented) branching fraction. This is the most precise measurement of a Λ b 0 branching fraction to date.

UR - http://www.scopus.com/inward/record.url?scp=84975095484&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84975095484&partnerID=8YFLogxK

U2 - 10.1007/JHEP08(2014)143

DO - 10.1007/JHEP08(2014)143

M3 - Article

SN - 1126-6708

VL - 2014

SP - 1

EP - 18

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 143

ER -

Aaij R, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z, Albrecht J et al. Study of the kinematic dependences of Λ<inf>b</inf>0 production in pp collisions and a measurement of the Λ<inf>b</inf>0 → Λ<inf>c</inf>+ π− branching fraction. Journal of High Energy Physics. 2014 Jan 1;2014(8):1-18. 143. doi: 10.1007/JHEP08(2014)143