Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

Vardan Khachatryan; the CMS Collaboration

doi:10.1016/j.physletb.2015.12.020

Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

Vardan Khachatryan, the CMS Collaboration

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Abstract

The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ−B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at View the MathML sources=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

Original language	English
Pages (from-to)	424-448
Number of pages	25
Journal	Physics Letters B
Volume	753
Early online date	11 Dec 2015
DOIs	https://doi.org/10.1016/j.physletb.2015.12.020
Publication status	Published - 10 Feb 2016

Keywords

CMS
Physics
B0 decays

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10.1016/j.physletb.2015.12.020

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Bristol Consolidated Grant 2015-9
Goldstein, J.
1/10/15 → 31/03/21
Project: Research
Consolidated Grant 2012-16
Newbold, D. M. & Rademacker, J. H.
1/10/12 → 1/10/16
Project: Research

Cite this

@article{7d55493307ab40fa9d29aff69133819b,

title = "Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV",

abstract = "The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ−B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at View the MathML sources=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.",

keywords = "CMS, Physics, B0 decays",

author = "Vardan Khachatryan and {the CMS Collaboration} and Aggleton, {Robin C} and Ball, {Fionn A} and Lana Beck and Brooke, {Jim J} and Clement, {Emyr J} and Cussans, {David G} and Flaecher, {Henning U} and Joel Goldstein and Mark Grimes and Heath, {Greg P} and Heath, {Helen F} and Jacob, {Jeson A} and Luke Kreczko and Chris Lucas and Zhaoxia Meng and Newbold, {David M} and Sudarshan Paramesvaran and Anthony Poll and Tai Sakuma and {Seif El Nasr}, {Sarah A} and Sergey Senkin and Smith, {Duncan P} and Smith, {Vincent J}",

year = "2016",

month = feb,

day = "10",

doi = "10.1016/j.physletb.2015.12.020",

language = "English",

volume = "753",

pages = "424--448",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "North-Holland Publishing Company",

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TY - JOUR

T1 - Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

AU - Khachatryan, Vardan

AU - the CMS Collaboration

AU - Aggleton, Robin C

AU - Ball, Fionn A

AU - Beck, Lana

AU - Brooke, Jim J

AU - Clement, Emyr J

AU - Cussans, David G

AU - Flaecher, Henning U

AU - Goldstein, Joel

AU - Grimes, Mark

AU - Heath, Greg P

AU - Heath, Helen F

AU - Jacob, Jeson A

AU - Kreczko, Luke

AU - Lucas, Chris

AU - Meng, Zhaoxia

AU - Newbold, David M

AU - Paramesvaran, Sudarshan

AU - Poll, Anthony

AU - Sakuma, Tai

AU - Seif El Nasr, Sarah A

AU - Senkin, Sergey

AU - Smith, Duncan P

AU - Smith, Vincent J

PY - 2016/2/10

Y1 - 2016/2/10

N2 - The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ−B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at View the MathML sources=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

AB - The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ−B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at View the MathML sources=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions.

KW - CMS

KW - Physics

KW - B0 decays

U2 - 10.1016/j.physletb.2015.12.020

DO - 10.1016/j.physletb.2015.12.020

M3 - Article (Academic Journal)

VL - 753

SP - 424

EP - 448

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Angular analysis of the decay B0 → K⁎0μ+μ− from pp collisions at √s=8 TeV

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Keywords

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Projects

Bristol Consolidated Grant 2015-9

Consolidated Grant 2012-16

Cite this