limits on spin-dependent wimp-proton …...2012/06/14 o.v. suvorova the dark side of the universe ,...

LIMITS ON SPIN-DEPENDENT WIMP-PROTON CROSS-SECTIONS FROM THE NEUTRINO EXPERIMENT

OF THE BAKSAN UNGERGROUND SCINTILLATOR TELESCOPE

MMBoliev SVDemidov OVSuvorova SPMikheyev

Institute for Nuclear Research of the Russian Academy of Sciences Moscow Russia

20120614

20120614 OV Suvorova The Dark Side of the Universe Buzios Brazil OV Suvorova The Dark Side of the Universe Buzios Brazil

dEE

dEEEEESES

dEST

ENEI

th

ith

iith

ithith

)(

)()()()(

)(

)cos()cos(

EffArea

Flux

Probability

Muon flux detected by NT

)()()(

)( dEERERdE

EEdEEP

E

E

j

thj

th


dEdE

dFEEP

j

th

j

m

E

jA

th

)(~

dE

dB

RdE

dF j

i

i

i

j

24

1

1) and WW decays

2) bb decays

Muon flux from distant source of WIMP annihilations

Annihilation rate

Annihilation branching ratio

E m

m = 50 GeV

1 TeV

50 GeV 100 GeV

1 TeV


Capture rate of WIMPs in the Sun

= 03 GeVcm3

CC = F( m -N )


NMSSM Contribution of SD vs SI -N interactions into the capture


A

middot AUppLim = UppLim(m )

F middot F UppLim = UppLim(m )

Ольга Суворова 39052012

How to calculate Upper Limits on -N cross section

GWicstrom and JEdsjo

arXiv09032986 JCAP

Universal for any NT and model

independent although includes astro- and

nuclear physical uncertainties

SDemidov and OSuvorova

arXiv10060872 JCAP

Location of the INR RAS Neutrino Telescopes

10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal

Baksan Neutrino Observatory

Longitude 4328 N

Latitude 4269 E

Site North Caucasus

OV Suvorova The Dark Side of the Universe Buzios Brazil

20120614

Underground laboratories of the Baksan Neutrino Observatory


20120614

Baksan Underground Scintillator Telescope

In operation since 18 December 1978

Depth 850hgcm2

Size 17m x 17m x 11m

Number of tanks 3150

Tank size 70cm x 70cm x 30cm

Angular resolution 150

Time resolution 5 ns

Trigger 10Mev in any plan

Rate 17 Hz

upwarddownward 10-7


20120614

Baksan Underground Scintillator Telescope view


20120614

TOF method Triggers Cuts

General Trigger 17 Hz

Special ( ) Trigger 002 Hz

Hard Trigger I

Hard Trigger II


Dec 1978 mdash Nov 2009

Live Time 2412 yrs

TRIGGER I

1 ge 3 scintillator planes

2 ge 2 negative t

3 le 3 external scintillator planes

Efficiency 099 (tested with

down-going muons)

TRIGGER II

1 = 2 vertical scintillator planes

2 = 0 horizontal scintillator plane

3 t ge 30ns (pathlength ge 10m)

Trigger rate 002 Hz

Cuts Level -1 have been set before exp-t

One reconstructed track 1 lt 0

bullEnter point is below then exit

bull For T2 excluded directions with gt 180

1700micro

Cuts Level -2 to reduce bkg atm micro groups

bull Geometrical cuts -176

bull Through going track -68

bull Range gt 500gcm2 -17

bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates

OV Suvorova The Dark Side of the Universe Buzios Brazil OV Suvorova The Dark Side of the Universe Buzios Brazil

Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614

MC simulation and reconstruction



Data performance upward going muons and the Sun position Full DM-analysis of data with 2115 yrs of live time


WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24

BUST Upper limits on annihilation rates

MC probability to detect muon from annihilation of one WIMP pair in the core of the Sun due to generated neutinos and their propagation with oscillation and interactions in medium

20120614 OV Suvorova The Dark Side of the Universe Buzios Brazil

MC-BUST response W-probability and half angle of open cone toward the Sun with 90 efficiency of muon detection

Neutralino mass (GeVc2)


Angula

r w

indo

w s

ize (

)

Pro

babili

ty W


BUST Upper limits on annihilation rates at 90 cl and NMSSM



Oscillation of DM neutrinos in the solar medium SDemidov OS 2012


Transport of oscillating DM micro and anti- micro from the Sun to observer

Neutrino spectra

Neutralino mass - 100 GeVc2

Annihilation channel -

Source spectrum from

MCirelli NFornengo et al

arXiv 0506298

Solar model from

JN Bahcall AM Serenelli

S Basu arXiv 0412440

SDemidov OS 2012

Osc params s2_th12= 0320 s2_th23= 049

s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola

JWFVallle arXiv 12054018 E GeV


Transport of oscillating DM micro and anti- micro from the Sun to observer Neutralino mass - 100 GeVc2


DarkSUSY PGondolo JEdsjo PUllio et al arXiv0406204 and

WimpSim MBlennov JEdsjo TOhlsson arXiv 07093898

anti-


Transport of oscillating DM micro and anti- micro from the Sun to observer Annihilation channel - W+W-

Neutralino mass - 100 GeVc2 and 200 GeVc2

SDemidov OS 2012


Transport of oscillating DM micro and anti- micro from the Sun to observer Annihilation channels - bb and + -


SDemidov OS 2012


Summary -oscillation effect on muon flux for different channels

SDemidov OS 2012


A









Coefficients and the BUST upper limits at 90 cl on elastic cross sections of neutralino scattering off proton


BUST upper limits on -p SI cross section vs mass at 90 cl


BUST Upper Limits on -p SD cross section vs mass at 90 cl


With latest results on -p SD cross section vs mass at 90 cl

SuperK-2011

multi-years DM searches Baksan-BUST 1978-2006= lt 2115 yrs arXiv 10060872 SKI-III 1996-2008= lt 31096 days arXiv 11083384 AmII+IC 2001-2008= lt 1065 days arXiv 11121840 ANTARES-5Lines 2007-2008 sens arXiv 12045066


SUMMARY

No excess was found toward the Sun during 30 yrs observation of

upward through going muons by neutrino experiment of the Baksan

Underground Scintillator Telescope

A new DM analysis was done with data sample of 2115 yrs lt

Upper limits at 90 cl on cross sections of neutralino elastic

scattering off proton were obtained The best value of the limit is

3x10-4 picobarn in spin-dependent interaction for 200 GeVc2 of

neutralino mass


Thank you


dEE

dEEEEESES

dEST

ENEI

th

ith

iith

ithith

)(

)()()()(

)(

)cos()cos(

EffArea

Flux

Probability

Muon flux detected by NT

)()()(

)( dEERERdE

EEdEEP

E

E

j

thj

th


dEdE

dFEEP

j

th

j

m

E

jA

th

)(~

dE

dB

RdE

dF j

i

i

i

j

24

1

1) and WW decays

2) bb decays


Annihilation rate


E m

m = 50 GeV

1 TeV

50 GeV 100 GeV

1 TeV



= 03 GeVcm3

CC = F( m -N )




A






arXiv09032986 JCAP





arXiv10060872 JCAP


10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal


Longitude 4328 N

Latitude 4269 E

Site North Caucasus


20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


dEdE

dFEEP

j

th

j

m

E

jA

th

)(~

dE

dB

RdE

dF j

i

i

i

j

24

1

1) and WW decays

2) bb decays


Annihilation rate


E m

m = 50 GeV

1 TeV

50 GeV 100 GeV

1 TeV



= 03 GeVcm3

CC = F( m -N )




A






arXiv09032986 JCAP





arXiv10060872 JCAP


10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal


Longitude 4328 N

Latitude 4269 E

Site North Caucasus


20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you



= 03 GeVcm3

CC = F( m -N )




A






arXiv09032986 JCAP





arXiv10060872 JCAP


10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal


Longitude 4328 N

Latitude 4269 E

Site North Caucasus


20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you




A






arXiv09032986 JCAP





arXiv10060872 JCAP


10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal


Longitude 4328 N

Latitude 4269 E

Site North Caucasus


20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


10433 E

20120614

Moscow

5183 N

BaikalGVD Baksan

Baikal-GVD

Site Lake Baikal


Longitude 4328 N

Latitude 4269 E

Site North Caucasus


20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614



20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614



Depth 850hgcm2







Rate 17 Hz

upwarddownward 10-7


20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614



20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614




Hard Trigger I

Hard Trigger II



Live Time 2412 yrs

TRIGGER I


2 ge 2 negative t



down-going muons)

TRIGGER II




Trigger rate 002 Hz





1700micro





bull -13 lt 1 lt -07 -40

1255micro

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614

Data performance



Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


Data performance


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


Data performance


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


Data performance

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614

Data rates


Up

mu

Ra

te(

ho

ur

10

00

)

Year

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614

Data rates


20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you

20120614






WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you




WT

N UpL

UpL

A

1

MC

Fix

NR

NW

24







Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you





Angula

r w

indo

w s

ize (

)

Pro

babili

ty W








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you








Neutrino spectra





arXiv 0506298

Solar model from



SDemidov OS 2012


s2_th13= 0026

dm2_21= 762E-05

dm2_31= 253E-03

DVForrero MTortola







anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you






anti-




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you




SDemidov OS 2012




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you




SDemidov OS 2012



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you



SDemidov OS 2012


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you


A
















SuperK-2011



SUMMARY








neutralino mass


Thank you










SuperK-2011



SUMMARY








neutralino mass


Thank you


SUMMARY








neutralino mass


Thank you


Thank you

limits on spin-dependent wimp-proton …...2012/06/14 o.v. suvorova the dark side of the universe ,...

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