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Transcript of Muon Detector Systems - Boston University · PDF fileMuon Detector Systems John M. Butler...

  • Muo

    n D

    etec

    tor S

    yste

    ms

    John

    M. B

    utle

    rB

    osto

    n U

    nive

    rsity

    &D

    arie

    n W

    ood

    Nor

    thea

    ster

    n U

    nive

    rsity

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    2

    Out

    line

    W

    hy M

    uons

    Mat

    ter

    M

    uon

    Det

    ecto

    r Sys

    tem

    s

    Bas

    ic P

    rinci

    ples

    R

    eal E

    xam

    ples

    B

    ackg

    roun

    ds

    Had

    ron

    Pun

    ch-th

    roug

    h

    Low

    E P

    artic

    les

    C

    osm

    ic R

    ays

    D

    esig

    n C

    onsi

    dera

    tions

    M

    omen

    tum

    Res

    olut

    ion

    M

    ultip

    le S

    catte

    ring

    P

    ositi

    on M

    easu

    rem

    ent

    G

    eom

    etric

    Acc

    epta

    nce

    D

    esig

    n C

    halle

    nge

    C

    avea

    ts

    Lim

    it ex

    ampl

    es to

    cur

    rent

    and

    fu

    ture

    had

    ron

    collid

    er d

    etec

    tors

    : C

    DF,

    D

    , ATL

    AS

    , CM

    S

    I will

    be a

    bit

    D

    -cen

    tric,

    ap

    olog

    ies

    in a

    dvan

    ce

    Man

    y to

    pics

    will

    be s

    kipp

    ed

    Drif

    t cha

    mbe

    r ope

    ratio

    n (B

    ecke

    r, la

    st y

    ear)

    D

    rift c

    ham

    ber a

    ging

    D

    etai

    ls o

    f ene

    rgy

    loss

    (F

    ishe

    r, th

    is y

    ear;

    Ahl

    en, l

    ast y

    ear)

    Fr

    ont e

    nd e

    lect

    roni

    cs

    (Oliv

    er, t

    his

    year

    )

    Det

    ails

    on

    trigg

    erin

    g

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    3

    Des

    ign

    Cha

    lleng

    e ak

    a H

    omew

    ork

    B

    rief i

    ntro

    her

    e, d

    etai

    ls a

    t the

    end

    Y

    our j

    ob is

    to d

    esig

    n a

    fast

    er, b

    ette

    r, ch

    eape

    r

    dete

    ctor

    to d

    isco

    ver t

    he H

    iggs

    at t

    he L

    HC

    in th

    e go

    lden

    mod

    e H

    Z

    Z +

    +

    Y

    our d

    etec

    tor w

    ill b

    e an

    iro

    n ba

    llde

    sign

    Ju

    st a

    muo

    n sy

    stem

    D

    ont

    mea

    sure

    ele

    ctro

    ns, j

    ets,

    mis

    sing

    ET,

    etc

    .

    Opt

    imiz

    atio

    n: y

    our d

    etec

    tor m

    ust h

    ave

    suffi

    cien

    t H

    iggs

    mas

    s re

    solu

    tion

    to c

    laim

    dis

    cove

    ry w

    hile

    m

    inim

    izin

    g th

    e ch

    anne

    l cou

    nt (i

    .e. t

    he c

    ost)

    P

    rese

    ntat

    ions

    of p

    ropo

    sals

    dur

    ing

    the

    Wed

    nesd

    ay

    sess

    ion

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    4

    Goo

    gle

    iron

    bal

    l det

    ecto

    r an

    d19

    75 P

    EP

    Sum

    mer

    Stu

    dy

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    5

    Why

    Muo

    ns M

    atte

    r

    H

    igh

    ener

    gy le

    pton

    s ha

    ve

    been

    a h

    ighl

    y pr

    oduc

    tive

    way

    to

    find

    new

    par

    ticle

    s

    The

    J/

    , , Y

    , W, Z

    , and

    to

    p qu

    ark

    disc

    over

    ies

    all

    relie

    d on

    muo

    ns

    No

    high

    ene

    rgy

    muo

    ns in

    the

    initi

    al s

    tate

    S

    igna

    ture

    for i

    nter

    estin

    g ph

    ysic

    s

    The

    goal

    sho

    uld

    be to

    get

    th

    em a

    ll on

    tape

    !

    P

    hysi

    cs to

    pics

    at t

    he

    Teva

    tron

    and

    LHC

    that

    use

    m

    uons

    H

    eavy

    flav

    ors

    (b, c

    )

    Top

    quar

    k ph

    ysic

    s

    Ele

    ctro

    wea

    k

    Sea

    rche

    s fo

    r new

    ph

    enom

    ena:

    Hig

    gs,

    SU

    SY

    b-ta

    ggin

    g vi

    a b

    c

    Rel

    ativ

    ely

    easy

    to tr

    igge

    r on

    and

    ID m

    uons

    but

    re

    quire

    s a

    very

    larg

    ede

    tect

    or s

    yste

    m

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    6

    Muo

    n P

    rope

    rties

    Fr

    om th

    e P

    artic

    le D

    ata

    Gro

    up

    Mas

    s =

    105.

    7 M

    eV/c

    2

    P

    rope

    r life

    time

    = 2.

    2 s

    H

    owev

    er, i

    n ha

    dron

    col

    lider

    exp

    erim

    ents

    Muo

    ns a

    re s

    tabl

    e pa

    rticl

    es

    v

    c

    Pen

    etra

    ting

    D

    epos

    it on

    ly m

    inim

    um io

    nizi

    ng e

    nerg

    y in

    det

    ecto

    r mat

    eria

    l (u

    p to

    the

    criti

    cal e

    nerg

    y, m

    ore

    late

    r)

    Onl

    y pa

    rticl

    es to

    esc

    ape

    a ha

    dron

    col

    lider

    det

    ecto

    r are

    m

    uons

    and

    neu

    trino

    s

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    7

    Pur

    pose

    s of

    Muo

    n D

    etec

    tor S

    yste

    ms

    Id

    entif

    y m

    uons

    at

    the

    trigg

    er le

    vel a

    nd o

    fflin

    e

    Opt

    iona

    lly

    mea

    sure

    the

    muo

    ns

    mom

    entu

    m

    Opt

    iona

    lly

    act a

    s a

    tail

    catc

    her

    for m

    easu

    ring

    the

    ener

    gy th

    at le

    aks

    out o

    f the

    cal

    orim

    eter

    from

    ver

    y hi

    gh e

    nerg

    y je

    ts

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    8

    Ele

    men

    ts o

    f Muo

    n D

    etec

    tion

    track

    erca

    lorim

    eter

    Muo

    n m

    agne

    tM

    easu

    re p

    inin

    so

    leno

    id fi

    eld

    Det

    ecto

    r Lay

    er

    mul

    tiple

    pla

    nes

    of(a

    ) coo

    rdin

    ate

    mea

    sure

    men

    ts(b

    ) fas

    t cou

    nter

    s

    Mea

    sure

    pou

    tus

    ing

    (a) t

    oroi

    d fie

    ldso

    lid o

    r air

    core

    or (b

    ) sol

    enoi

    d re

    turn

    fiel

    d

    Abs

    orb

    hadr

    ons

    Elo

    ssfro

    m io

    niza

    tion

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    9

    Rea

    l Muo

    n S

    yste

    ms:

    CD

    F

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    10

    N

    o p o

    utm

    easu

    rem

    ent

    D

    rift c

    ham

    bers

    C

    entra

    l: 2-

    laye

    rs (8

    pl

    anes

    ), 3.

    4k c

    h

    Ext

    ensi

    on: 1

    -laye

    r (4

    plan

    es),

    2.2k

    ch

    In

    term

    edia

    te: 1

    -laye

    r (4

    pla

    nes)

    , 1.7

    k ch

    S

    cint

    illat

    or

    Cen

    tral:

    1-la

    yer,

    270

    ch

    Ext

    ensi

    on: 2

    -laye

    r, 32

    0 ch

    In

    term

    edia

    te: 1

    -laye

    r, 86

    0 ch

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    11

    Rea

    l Muo

    n S

    yste

    ms:

    D

  • John

    M. B

    utle

    rN

    EPPS

    R, 1

    8 Au

    gust

    2003

    12

    Fe

    Tor

    oid

    2

    T

    Drif

    t Cha

    mbe

    rs

    Cen

    tral:

    3-la

    yers

    (1

    0 pl

    anes

    ), 6.

    8k c

    h

    Forw

    ard:

    3-la

    yers

    (1

    0 pl

    anes

    ), 50

    k ch

    S

    cint

    illat

    or

    Cen

    tral:

    2-la

    yers

    , 99

    0 ch

    Fo

    rwar

    d: 3

    -laye

    rs,

    4.8k

    ch

    E

    xten

    sive

    shi

    eldi

    ng

  • J