Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider

UA1 Collaboration; R. Edgecock

doi:10.1007/BF01549709

Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider

UA1 Collaboration, R. Edgecock

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26 Citations (Scopus)

Abstract

We present a study of heavy flavour (charm and beauty) production using data collected with the UA1 detector at the CERN Proton-Antiproton collider at a centre-of-mass energy of 630 GeV for an integrated luminosity of 556 nb^-1. This follows our earlier study of b {Mathematical expression} and c {Mathematical expression} production in dimuon events and the evidence for mixing between B⁰ and {Mathematical expression} states. Properties of an inclusive sample of events containing a muon with p_T>6 GeV/c are compared with QCD predictions for heavy flavour production, using the ISAJET Monte Carlo program. The predicted large p_T muon yield from heavy flavour production and decay agrees with the data to within 30%. For events with a muon of p_T>10 GeV/c and at least one jet with E_T>10 GeV, we measure the ratio charm/(charm+beauty) to be (24±8±9)%. We also show that the correlations observed between the two heavy quark jets expected by flavour conservation are consistent with the mixture of lowest and higher order QCD processes. We study in detail the topological and kinematic properties of a subsample of events containing a high p_T muon and one or more jets. The good agreement of the theoretical predictions with our data in a region dominated by the production of charm and beauty shows that one of the main background sources to a new heavy quark signature is well understood.

Original language	English
Pages (from-to)	489-503
Number of pages	15
Journal	Zeitschrift für Physik C Particles and Fields
Volume	37
Issue number	4
DOIs	https://doi.org/10.1007/BF01549709
Publication status	Published - Dec 1988
Externally published	Yes

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@article{4b44e44279244356aea8bd3ab1a31274,

title = "Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider",

abstract = "We present a study of heavy flavour (charm and beauty) production using data collected with the UA1 detector at the CERN Proton-Antiproton collider at a centre-of-mass energy of 630 GeV for an integrated luminosity of 556 nb-1. This follows our earlier study of b {Mathematical expression} and c {Mathematical expression} production in dimuon events and the evidence for mixing between B0 and {Mathematical expression} states. Properties of an inclusive sample of events containing a muon with pT>6 GeV/c are compared with QCD predictions for heavy flavour production, using the ISAJET Monte Carlo program. The predicted large pT muon yield from heavy flavour production and decay agrees with the data to within 30%. For events with a muon of pT>10 GeV/c and at least one jet with ET>10 GeV, we measure the ratio charm/(charm+beauty) to be (24±8±9)%. We also show that the correlations observed between the two heavy quark jets expected by flavour conservation are consistent with the mixture of lowest and higher order QCD processes. We study in detail the topological and kinematic properties of a subsample of events containing a high pT muon and one or more jets. The good agreement of the theoretical predictions with our data in a region dominated by the production of charm and beauty shows that one of the main background sources to a new heavy quark signature is well understood.",

keywords = "Heavy quark, Integrate Luminosity, Monte Carlo program, Heavy flavour, Inclusive sample",

author = "{UA1 Collaboration} and C. Albajar and Albrow, {M. G.} and Allkofer, {O. C.} and A. Astbury and B. Aubert and T. Axon and C. Bacci and T. Bacon and N. Bains and Batley, {J. R.} and G. Bauer and S. Beingessner and J. Bellinger and A. Bettini and A. Bezaguet and R. Bonino and K. Bos and {de Brion}, {J. P.} and E. Buckley and G. Busetto and P. Catz and P. Cennini and S. Centro and F. Ceradini and Charlton, {D. G.} and G. Ciapetti and S. Cittolin and D. Clarke and D. Cline and C. Cochet and J. Colas and P. Colas and M. Corden and Coughlan, {J. A.} and G. Cox and D. Dau and M. DeBeer and M. DeGiorgi and Negra, {M. Della} and M. Demoulin and B. Denby and D. Denegri and A. DiCiaccio and {Diez Hedo}, {F. J.} and L. Dobrzynski and J. Dorenbosch and Dowell, {J. D.} and E. Duchovni and R. Edgecock and K. Eggert",

year = "1988",

month = dec,

doi = "10.1007/BF01549709",

language = "English",

volume = "37",

pages = "489--503",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "4",

}

TY - JOUR

T1 - Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider

AU - UA1 Collaboration

AU - Albajar, C.

AU - Albrow, M. G.

AU - Allkofer, O. C.

AU - Astbury, A.

AU - Aubert, B.

AU - Axon, T.

AU - Bacci, C.

AU - Bacon, T.

AU - Bains, N.

AU - Batley, J. R.

AU - Bauer, G.

AU - Beingessner, S.

AU - Bellinger, J.

AU - Bettini, A.

AU - Bezaguet, A.

AU - Bonino, R.

AU - Bos, K.

AU - de Brion, J. P.

AU - Buckley, E.

AU - Busetto, G.

AU - Catz, P.

AU - Cennini, P.

AU - Centro, S.

AU - Ceradini, F.

AU - Charlton, D. G.

AU - Ciapetti, G.

AU - Cittolin, S.

AU - Clarke, D.

AU - Cline, D.

AU - Cochet, C.

AU - Colas, J.

AU - Colas, P.

AU - Corden, M.

AU - Coughlan, J. A.

AU - Cox, G.

AU - Dau, D.

AU - DeBeer, M.

AU - DeGiorgi, M.

AU - Negra, M. Della

AU - Demoulin, M.

AU - Denby, B.

AU - Denegri, D.

AU - DiCiaccio, A.

AU - Diez Hedo, F. J.

AU - Dobrzynski, L.

AU - Dorenbosch, J.

AU - Dowell, J. D.

AU - Duchovni, E.

AU - Edgecock, R.

AU - Eggert, K.

PY - 1988/12

Y1 - 1988/12

N2 - We present a study of heavy flavour (charm and beauty) production using data collected with the UA1 detector at the CERN Proton-Antiproton collider at a centre-of-mass energy of 630 GeV for an integrated luminosity of 556 nb-1. This follows our earlier study of b {Mathematical expression} and c {Mathematical expression} production in dimuon events and the evidence for mixing between B0 and {Mathematical expression} states. Properties of an inclusive sample of events containing a muon with pT>6 GeV/c are compared with QCD predictions for heavy flavour production, using the ISAJET Monte Carlo program. The predicted large pT muon yield from heavy flavour production and decay agrees with the data to within 30%. For events with a muon of pT>10 GeV/c and at least one jet with ET>10 GeV, we measure the ratio charm/(charm+beauty) to be (24±8±9)%. We also show that the correlations observed between the two heavy quark jets expected by flavour conservation are consistent with the mixture of lowest and higher order QCD processes. We study in detail the topological and kinematic properties of a subsample of events containing a high pT muon and one or more jets. The good agreement of the theoretical predictions with our data in a region dominated by the production of charm and beauty shows that one of the main background sources to a new heavy quark signature is well understood.

AB - We present a study of heavy flavour (charm and beauty) production using data collected with the UA1 detector at the CERN Proton-Antiproton collider at a centre-of-mass energy of 630 GeV for an integrated luminosity of 556 nb-1. This follows our earlier study of b {Mathematical expression} and c {Mathematical expression} production in dimuon events and the evidence for mixing between B0 and {Mathematical expression} states. Properties of an inclusive sample of events containing a muon with pT>6 GeV/c are compared with QCD predictions for heavy flavour production, using the ISAJET Monte Carlo program. The predicted large pT muon yield from heavy flavour production and decay agrees with the data to within 30%. For events with a muon of pT>10 GeV/c and at least one jet with ET>10 GeV, we measure the ratio charm/(charm+beauty) to be (24±8±9)%. We also show that the correlations observed between the two heavy quark jets expected by flavour conservation are consistent with the mixture of lowest and higher order QCD processes. We study in detail the topological and kinematic properties of a subsample of events containing a high pT muon and one or more jets. The good agreement of the theoretical predictions with our data in a region dominated by the production of charm and beauty shows that one of the main background sources to a new heavy quark signature is well understood.

KW - Heavy quark

KW - Integrate Luminosity

KW - Monte Carlo program

KW - Heavy flavour

KW - Inclusive sample

UR - http://www.scopus.com/inward/record.url?scp=10644286957&partnerID=8YFLogxK

U2 - 10.1007/BF01549709

DO - 10.1007/BF01549709

M3 - Article

AN - SCOPUS:10644286957

VL - 37

SP - 489

EP - 503

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 4

ER -

Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider

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